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The 20th (twentieth) century began on January 1, 1901 ( MCMI), and ended on December 31, 2000 ( MM). The 20th century was dominated by significant events that defined the modern era:
Spanish flu pandemic The 1918–1920 influenza pandemic, commonly known by the misnomer Spanish flu or as the Great Influenza epidemic, was an exceptionally deadly global influenza pandemic caused by the H1N1 influenza A virus. The earliest documented case was ...
,
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...
and
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ...
,
nuclear weapon A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion reactions ( thermonuclear bomb), producing a nuclear explosion. Both bom ...
s,
nuclear power Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced ...
and space exploration,
nationalism Nationalism is an idea and movement that holds that the nation should be congruent with the state. As a movement, nationalism tends to promote the interests of a particular nation (as in a group of people), Smith, Anthony. ''Nationalism: The ...
and
decolonization Decolonization or decolonisation is the undoing of colonialism, the latter being the process whereby imperial nations establish and dominate foreign territories, often overseas. Some scholars of decolonization focus especially on separatism, in ...
, technological advances, and the Cold War and post-Cold War conflicts. These reshaped the political and social structure of the globe. The 20th century saw a massive transformation of humanity's relationship with the natural world. Global
population Population typically refers to the number of people in a single area, whether it be a city or town, region, country, continent, or the world. Governments typically quantify the size of the resident population within their jurisdiction using a ...
,
sea level rise Globally, sea levels are rising due to human-caused climate change. Between 1901 and 2018, the globally averaged sea level rose by , or 1–2 mm per year on average.IPCC, 2019Summary for Policymakers InIPCC Special Report on the Ocean and Cry ...
, and
ecological collapse Ecological collapse refers to a situation where an ecosystem suffers a drastic, possibly permanent, reduction in carrying capacity for all organisms, often resulting in mass extinction. Usually, an ecological collapse is precipitated by a disast ...
s increased while competition for land and dwindling resources accelerated
deforestation Deforestation or forest clearance is the removal of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. The most concentrated ...
, water depletion, and the
mass extinction An extinction event (also known as a mass extinction or biotic crisis) is a widespread and rapid decrease in the biodiversity on Earth. Such an event is identified by a sharp change in the diversity and abundance of multicellular organisms. I ...
of many of the world's species and decline in the population of others.
Global heating Global means of or referring to a globe and may also refer to: Entertainment * ''Global'' (Paul van Dyk album), 2003 * ''Global'' (Bunji Garlin album), 2007 * ''Global'' (Humanoid album), 1989 * ''Global'' (Todd Rundgren album), 2015 * Bruno ...
increased the risk of extreme weather conditions. Additional themes include
intergovernmental organization Globalization Globalization, or globalisation (English in the Commonwealth of Nations, Commonwealth English; American and British English spelling differences#-ise, -ize (-isation, -ization), see spelling differences), is the process of ...
s and cultural homogenization through developments in emerging transportation and
communications technology Information and communications technology (ICT) is an extensional term for information technology (IT) that stresses the role of unified communications and the integration of telecommunications (telephone lines and wireless signals) and computers, ...
;
poverty reduction Poverty reduction, poverty relief, or poverty alleviation, is a set of measures, both economic and humanitarian, that are intended to permanently lift people out of poverty. Measures, like those promoted by Henry George in his economics cl ...
and rising standards of living,
world population In demographics, the world population is the total number of humans currently living. It was estimated by the United Nations to have exceeded 8 billion in November 2022. It took over 200,000 years of human prehistory and history for th ...
growth, awareness of environmental degradation,
ecological extinction Ecological extinction is "the reduction of a species to such low abundance that, although it is still present in the community, it no longer interacts significantly with other species". Ecological extinction stands out because it is the interacti ...
; Wilson, E.O., ''The Future of Life'' (2002) (). See also: Leakey, Richard, ''The Sixth Extinction : Patterns of Life and the Future of Humankind'', and the birth of the Digital Revolution.
Automobile A car or automobile is a motor vehicle with wheels. Most definitions of ''cars'' say that they run primarily on roads, seat one to eight people, have four wheels, and mainly transport people instead of goods. The year 1886 is regarde ...
s, airplanes and the use of
home appliance A home appliance, also referred to as a domestic appliance, an electric appliance or a household appliance, is a machine which assists in household functions such as cooking, cleaning and food preservation. Appliances are divided into three ...
s became common, as did
video Video is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media. Video was first developed for mechanical television systems, which were quickly replaced by cathode-ray tube (CRT) syst ...
and
audio recording Sound recording and reproduction is the electrical, mechanical, electronic, or digital inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording t ...
. Great advances in power generation, communication, and medical technology allowed for near-instantaneous worldwide computer communication and
genetic modification Genetic engineering, also called genetic modification or genetic manipulation, is the modification and manipulation of an organism's genes using technology. It is a set of technologies used to change the genetic makeup of cells, including t ...
of life. The repercussions of the World Wars, Cold War, and globalization crafted a world where people are more united than any previous time in human history, as exemplified by the establishment of
international law International law (also known as public international law and the law of nations) is the set of rules, norms, and standards generally recognized as binding between states. It establishes normative guidelines and a common conceptual framework for ...
,
international aid In international relations, aid (also known as international aid, overseas aid, foreign aid, economic aid or foreign assistance) is – from the perspective of governments – a voluntary transfer of resources from one country to another. Ai ...
, and the United Nations. The
Marshall Plan The Marshall Plan (officially the European Recovery Program, ERP) was an American initiative enacted in 1948 to provide foreign aid to Western Europe. The United States transferred over $13 billion (equivalent of about $ in ) in economic re ...
—which spent $13 billion ($ billion in U.S. dollars) to rebuild the economies of post-war nations—launched "
Pax Americana ''Pax Americana'' (Latin for "American Peace", modeled after ''Pax Romana'' and ''Pax Britannica''; also called the Long Peace) is a term applied to the concept of relative peace in the Western Hemisphere and later in the world after the end o ...
". Throughout the latter half of the 20th century, the rivalry between the United States and the
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
created enormous tensions around the world which manifested in various armed proxy regional conflicts and the omnipresent danger of nuclear proliferation. The dissolution of the Soviet Union in 1991 after the collapse of its European alliance was heralded by the West as the end of
communism Communism (from Latin la, communis, lit=common, universal, label=none) is a far-left sociopolitical, philosophical, and economic ideology and current within the socialist movement whose goal is the establishment of a communist society, a ...
, though by the century's end roughly one in six people on Earth lived under communist rule, mostly in China which was rapidly rising as an economic and geopolitical power. It took over two hundred thousand years of modern human history and 6 million years of human evolution for the world's population to reach 1 billion in 1804;
world population In demographics, the world population is the total number of humans currently living. It was estimated by the United Nations to have exceeded 8 billion in November 2022. It took over 200,000 years of human prehistory and history for th ...
reached an estimated 2 billion in 1927; by late 2000, the global population reached 6 billion, with over half in
East East or Orient is one of the four cardinal directions or points of the compass. It is the opposite direction from west and is the direction from which the Sun rises on the Earth. Etymology As in other languages, the word is formed from the fac ...
, South and Southeast Asia. Global
literacy Literacy in its broadest sense describes "particular ways of thinking about and doing reading and writing" with the purpose of understanding or expressing thoughts or ideas in written form in some specific context of use. In other words, hum ...
averaged 80%. Penicillin and other medical breakthroughs combined with the
World Health Organization The World Health Organization (WHO) is a specialized agency of the United Nations responsible for international public health. The WHO Constitution states its main objective as "the attainment by all peoples of the highest possible level of ...
's global
vaccination Vaccination is the administration of a vaccine to help the immune system develop immunity from a disease. Vaccines contain a microorganism or virus in a weakened, live or killed state, or proteins or toxins from the organism. In stimulating ...
campaigns to eradicate smallpox and other diseases responsible for more human deaths than all wars and natural disasters combined yielded unprecedented results; smallpox now only existed in labs. Machines came to be used in all areas of production, feeding increasingly intricate supply chains that allowed mankind for the first time to be constrained not by how much it could produce, but by peoples' willingness to consume. Trade improvements greatly expanded upon the limited set of food-producing techniques used since the
Neolithic The Neolithic period, or New Stone Age, is an Old World archaeological period and the final division of the Stone Age. It saw the Neolithic Revolution, a wide-ranging set of developments that appear to have arisen independently in several p ...
period, multiplying the diversity of foods available and boosting the quality of
human nutrition Human nutrition deals with the provision of essential nutrients in food that are necessary to support human life and good health. Poor nutrition is a chronic problem often linked to poverty, food security, or a poor understanding of nutritiona ...
. Until the early 19th century,
life expectancy Life expectancy is a statistical measure of the average time an organism is expected to live, based on the year of its birth, current age, and other demographic factors like sex. The most commonly used measure is life expectancy at birth ...
from birth was about thirty in most populations; global lifespan-averages exceeded 40 years for the first time in history, with over half achieving 70 or more years (three decades ''longer'' than a century earlier).


Overview


Chronological history

The 20th (twentieth) century began on January 1, 1901, and ended on December 31, 2000. It was the tenth and final century of the 2nd millennium. Unlike most century years, the year
2000 File:2000 Events Collage.png, From left, clockwise: Protests against Bush v. Gore after the 2000 United States presidential election; Heads of state meet for the Millennium Summit; The International Space Station in its infant form as seen from S ...
was a
leap year A leap year (also known as an intercalary year or bissextile year) is a calendar year that contains an additional day (or, in the case of a lunisolar calendar, a month) added to keep the calendar year synchronized with the astronomical year or ...
, and the second
century leap year A century leap year is a leap year in the Gregorian calendar that is evenly divisible by 400. Like all leap years, it has an extra day in February for a total of 366 days instead of 365. In the obsolete Julian calendar, all years that were divisi ...
in the
Gregorian calendar The Gregorian calendar is the calendar used in most parts of the world. It was introduced in October 1582 by Pope Gregory XIII as a modification of, and replacement for, the Julian calendar. The principal change was to space leap years dif ...
after
1600 __NOTOC__ In the Gregorian calendar, it was the last century leap year until the year 2000. Events January–June * January 1 – Scotland adopts January 1 as New Year's Day instead of March 25. * January ** Hugh O'Neill, 2nd Earl of T ...
. The century had the first global-scale
total war Total war is a type of warfare that includes any and all civilian-associated resources and infrastructure as legitimate military targets, mobilizes all of the resources of society to fight the war, and gives priority to warfare over non-combata ...
s between world powers across continents and oceans in
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...
and
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ...
.
Nationalism Nationalism is an idea and movement that holds that the nation should be congruent with the state. As a movement, nationalism tends to promote the interests of a particular nation (as in a group of people), Smith, Anthony. ''Nationalism: The ...
became a major political issue in the world in the 20th century, acknowledged in
international law International law (also known as public international law and the law of nations) is the set of rules, norms, and standards generally recognized as binding between states. It establishes normative guidelines and a common conceptual framework for ...
along with the right of nations to self-determination, official
decolonization Decolonization or decolonisation is the undoing of colonialism, the latter being the process whereby imperial nations establish and dominate foreign territories, often overseas. Some scholars of decolonization focus especially on separatism, in ...
in the mid-century, and related regional conflicts. The century saw a major shift in the way that many people lived, with changes in politics, ideology, economics, society, culture, science, technology, and medicine. The 20th century may have seen more technological and scientific progress than all the other centuries combined since the dawn of civilization. Terms like ''
nationalism Nationalism is an idea and movement that holds that the nation should be congruent with the state. As a movement, nationalism tends to promote the interests of a particular nation (as in a group of people), Smith, Anthony. ''Nationalism: The ...
'', '' globalism'', ''environmentalism'', ''ideology'', ''
world war A world war is an international conflict which involves all or most of the world's major powers. Conventionally, the term is reserved for two major international conflicts that occurred during the first half of the 20th century, World WarI (1914 ...
'', ''
genocide Genocide is the intentional destruction of a people—usually defined as an ethnic, national, racial, or religious group—in whole or in part. Raphael Lemkin coined the term in 1944, combining the Greek word (, "race, people") with the Lat ...
,'' and '' nuclear war'' entered common usage. Scientific discoveries, such as the
theory of relativity The theory of relativity usually encompasses two interrelated theories by Albert Einstein: special relativity and general relativity, proposed and published in 1905 and 1915, respectively. Special relativity applies to all physical phenomena in ...
and quantum physics, profoundly changed the foundational models of physical science, forcing scientists to realize that the universe was more complex than previously believed, and dashing the hopes (or fears) at the end of the 19th century that the last few details of scientific knowledge were about to be filled in. It was a century that started with horses, simple automobiles, and freighters but ended with high-speed rail,
cruise ships Cruise ships are large passenger ships used mainly for vacationing. Unlike ocean liners, which are used for transport, cruise ships typically embark on round-trip voyages to various ports-of-call, where passengers may go on tours known as "sho ...
, global commercial air travel and the
Space Shuttle The Space Shuttle is a retired, partially reusable low Earth orbital spacecraft system operated from 1981 to 2011 by the U.S. National Aeronautics and Space Administration (NASA) as part of the Space Shuttle program. Its official program ...
. Horses and other
pack animal A pack animal, also known as a sumpter animal or beast of burden, is an individual or type of working animal used by humans as means of transporting materials by attaching them so their weight bears on the animal's back, in contrast to draft ani ...
s, every society's basic form of personal transportation for thousands of years, were replaced by automobiles and buses within a few decades. These developments were made possible by the exploitation of fossil fuel resources, which offered energy in an easily portable form, but also caused concern about pollution and long-term impact on the environment. Humans explored
space Space is the boundless three-dimensional extent in which objects and events have relative position and direction. In classical physics, physical space is often conceived in three linear dimensions, although modern physicists usually cons ...
for the first time, taking their first footsteps on the
Moon The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of ...
. Mass media, telecommunications, and information technology (especially computers,
paperback book A paperback (softcover, softback) book is one with a thick paper or paperboard cover, and often held together with glue rather than stitches or staples. In contrast, hardcover (hardback) books are bound with cardboard covered with cloth, lea ...
s, public education, and the Internet) made the world's knowledge more widely available. Public health improvements led to global life expectancy increasing from 35 years to 65 years. Rapid technological advancements, however, also allowed warfare to reach unprecedented levels of destruction. World War II alone killed over 60 million people, while nuclear weapons gave humankind the means to annihilate itself in a short time. However, these same wars resulted in the destruction of the imperial system. For the first time in human history, empires and their wars of expansion and colonization ceased to be a factor in international affairs, resulting in a far more globalized and cooperative world. The last time major powers clashed openly was in 1945, and since then, violence has seen an unprecedented decline. The world also became more culturally homogenized than ever with developments in transportation and communications technology,
popular music Popular music is music with wide appeal that is typically distributed to large audiences through the music industry. These forms and styles can be enjoyed and performed by people with little or no musical training.Popular Music. (2015). ''Fu ...
and other influences of
Western culture Leonardo da Vinci's ''Vitruvian Man''. Based on the correlations of ideal Body proportions">human proportions with geometry described by the ancient Roman architect Vitruvius in Book III of his treatise ''De architectura''. image:Plato Pio-Cle ...
, international corporations, and what was arguably a truly global economy by the end of the 20th century.


Summary

At the beginning of the period, the
British Empire The British Empire was composed of the dominions, colonies, protectorates, mandates, and other territories ruled or administered by the United Kingdom and its predecessor states. It began with the overseas possessions and trading posts e ...
was the world's most powerful nation, having acted as the world's policeman for the past century. Technological advancements during
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...
changed the way war was fought, as new inventions such as
tank A tank is an armoured fighting vehicle intended as a primary offensive weapon in front-line ground combat. Tank designs are a balance of heavy firepower, strong armour, and good battlefield mobility provided by tracks and a powerful engi ...
s,
chemical weapons A chemical weapon (CW) is a specialized munition that uses chemicals formulated to inflict death or harm on humans. According to the Organisation for the Prohibition of Chemical Weapons (OPCW), this can be any chemical compound intended as a ...
, and aircraft modified tactics and strategy. After more than four years of
trench warfare Trench warfare is a type of land warfare using occupied lines largely comprising military trenches, in which troops are well-protected from the enemy's small arms fire and are substantially sheltered from artillery. Trench warfare became ar ...
in Western Europe, and up to 22 million dead, the powers that had formed the
Triple Entente The Triple Entente (from French '' entente'' meaning "friendship, understanding, agreement") describes the informal understanding between the Russian Empire, the French Third Republic, and the United Kingdom of Great Britain and Ireland as well a ...
(
France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of overseas regions and territories in the Americas and the Atlantic, Pacific and Indian Oceans. Its metropolitan area ...
,
Britain Britain most often refers to: * The United Kingdom, a sovereign state in Europe comprising the island of Great Britain, the north-eastern part of the island of Ireland and many smaller islands * Great Britain, the largest island in the United King ...
, and
Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eig ...
, later replaced by the United States and joined by
Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical ...
and
Romania Romania ( ; ro, România ) is a country located at the crossroads of Central, Eastern, and Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, Serbia to the southwest, Moldova to the east, and ...
) emerged victorious over the
Central Powers The Central Powers, also known as the Central Empires,german: Mittelmächte; hu, Központi hatalmak; tr, İttifak Devletleri / ; bg, Централни сили, translit=Tsentralni sili was one of the two main coalitions that fought in ...
(
Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...
,
Austria-Hungary Austria-Hungary, often referred to as the Austro-Hungarian Empire,, the Dual Monarchy, or Austria, was a constitutional monarchy and great power in Central Europe between 1867 and 1918. It was formed with the Austro-Hungarian Compromise of ...
, the
Ottoman Empire The Ottoman Empire, * ; is an archaic version. The definite article forms and were synonymous * and el, Оθωμανική Αυτοκρατορία, Othōmanikē Avtokratoria, label=none * info page on book at Martin Luther University) ...
and
Bulgaria Bulgaria (; bg, България, Bǎlgariya), officially the Republic of Bulgaria,, ) is a country in Southeast Europe. It is situated on the eastern flank of the Balkans, and is bordered by Romania to the north, Serbia and North Macedo ...
). In addition to annexing many of the colonial possessions of the vanquished states, the Triple Entente exacted punitive restitution payments from them, plunging Germany in particular into economic depression. The Austro-Hungarian and Ottoman empires were dismantled at the war's conclusion. The Russian Revolution resulted in the overthrow of the
Tsar Tsar ( or ), also spelled ''czar'', ''tzar'', or ''csar'', is a title used by East and South Slavic monarchs. The term is derived from the Latin word ''caesar'', which was intended to mean "emperor" in the European medieval sense of the ter ...
ist regime of Nicholas II and the onset of the
Russian Civil War {{Infobox military conflict , conflict = Russian Civil War , partof = the Russian Revolution and the aftermath of World War I , image = , caption = Clockwise from top left: {{flatlist, *Soldiers ...
. The victorious
Bolsheviks The Bolsheviks (russian: Большевики́, from большинство́ ''bol'shinstvó'', 'majority'),; derived from ''bol'shinstvó'' (большинство́), "majority", literally meaning "one of the majority". also known in English ...
then established the
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
, the world's first
communist state A communist state, also known as a Marxist–Leninist state, is a one-party state that is administered and governed by a communist party guided by Marxism–Leninism. Marxism–Leninism was the state ideology of the Soviet Union, the Comi ...
.
Fascism Fascism is a far-right, authoritarian, ultra-nationalist political ideology and movement,: "extreme militaristic nationalism, contempt for electoral democracy and political and cultural liberalism, a belief in natural social hierarchy an ...
, a movement which grew out of post-war
angst Angst is fear or anxiety ('' anguish'' is its Latinate equivalent, and the words ''anxious'' and ''anxiety'' are of similar origin). The dictionary definition for angst is a feeling of anxiety, apprehension, or insecurity. Etymology The word ...
and which accelerated during the Great Depression of the 1930s, gained momentum in
Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical ...
,
Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...
, and
Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , i ...
in the 1920s and 1930s, culminating in
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ...
, sparked by
Nazi Germany Nazi Germany (lit. "National Socialist State"), ' (lit. "Nazi State") for short; also ' (lit. "National Socialist Germany") (officially known as the German Reich from 1933 until 1943, and the Greater German Reich from 1943 to 1945) was ...
's aggressive expansion at the expense of its neighbors. Meanwhile, Japan had rapidly transformed itself into a technologically advanced industrial power and, along with Germany and Italy, formed the
Axis powers The Axis powers, ; it, Potenze dell'Asse ; ja, 枢軸国 ''Sūjikukoku'', group=nb originally called the Rome–Berlin Axis, was a military coalition that initiated World War II and fought against the Allies. Its principal members were ...
. Japan's military expansionism in East Asia and the Pacific Ocean brought it into conflict with the United States, culminating in a surprise attack which drew the US into World War II. After some years of dramatic military success, Germany was
defeated Defeated may refer to: * "Defeated" (Breaking Benjamin song) * "Defeated" (Anastacia song) *"Defeated", a song by Snoop Dogg from the album ''Bible of Love'' *Defeated, Tennessee, an unincorporated community *''The Defeated ''The Defeated'', al ...
in 1945, having been invaded by the
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
and
Poland Poland, officially the Republic of Poland, is a country in Central Europe. It is divided into 16 administrative provinces called voivodeships, covering an area of . Poland has a population of over 38 million and is the fifth-most populou ...
from the East and by the United States, the United Kingdom, Canada, and
France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of overseas regions and territories in the Americas and the Atlantic, Pacific and Indian Oceans. Its metropolitan area ...
from the West. After the victory of the Allies in Europe, the war in Asia ended with the
Soviet invasion of Manchuria The Soviet invasion of Manchuria, formally known as the Manchurian strategic offensive operation (russian: Манчжурская стратегическая наступательная операция, Manchzhurskaya Strategicheskaya Nastu ...
and the dropping of two atomic bombs on Japan by the US, the first nation to develop nuclear weapons and the only one to use them in warfare. In total, World War II left some 60 million people dead. Following World War II, the United Nations, successor to the
League of Nations The League of Nations (french: link=no, Société des Nations ) was the first worldwide intergovernmental organisation whose principal mission was to maintain world peace. It was founded on 10 January 1920 by the Paris Peace Conference that ...
, was established as an international forum in which the world's nations could discuss issues diplomatically. It enacted resolutions on such topics as the conduct of warfare, environmental protection, international
sovereignty Sovereignty is the defining authority within individual consciousness, social construct, or territory. Sovereignty entails hierarchy within the state, as well as external autonomy for states. In any state, sovereignty is assigned to the perso ...
, and human rights. Peacekeeping forces consisting of troops provided by various countries, with various United Nations and other aid agencies, helped to relieve famine, disease, and poverty, and to suppress some local armed conflicts. Europe slowly united, economically and, in some ways, politically, to form the
European Union The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been de ...
, which consisted of 15 European countries by the end of the 20th century. After the war, Germany was occupied and divided between the
Western Western may refer to: Places *Western, Nebraska, a village in the US *Western, New York, a town in the US *Western Creek, Tasmania, a locality in Australia *Western Junction, Tasmania, a locality in Australia *Western world, countries that id ...
powers and the Soviet Union.
East Germany East Germany, officially the German Democratic Republic (GDR; german: Deutsche Demokratische Republik, , DDR, ), was a country that existed from its creation on 7 October 1949 until its dissolution on 3 October 1990. In these years the state ...
and the rest of
Eastern Europe Eastern Europe is a subregion of the European continent. As a largely ambiguous term, it has a wide range of geopolitical, geographical, ethnic, cultural, and socio-economic connotations. The vast majority of the region is covered by Russia, whic ...
became Soviet puppet states under communist rule. Western Europe was rebuilt with the aid of the American
Marshall Plan The Marshall Plan (officially the European Recovery Program, ERP) was an American initiative enacted in 1948 to provide foreign aid to Western Europe. The United States transferred over $13 billion (equivalent of about $ in ) in economic re ...
, resulting in a major post-war economic boom, and many of the affected nations became close allies of the United States. With the Axis defeated and Britain and France rebuilding, the United States and the Soviet Union were left standing as the world's only superpowers. Allies during the war, they soon became hostile to one another as their competing ideologies of
communism Communism (from Latin la, communis, lit=common, universal, label=none) is a far-left sociopolitical, philosophical, and economic ideology and current within the socialist movement whose goal is the establishment of a communist society, a ...
and democratic capitalism proliferated in Europe, which became divided by the Iron Curtain and the Berlin Wall. They formed competing military alliances (
NATO The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two No ...
and the
Warsaw Pact The Warsaw Pact (WP) or Treaty of Warsaw, formally the Treaty of Friendship, Cooperation and Mutual Assistance, was a collective defense treaty signed in Warsaw, Poland, between the Soviet Union and seven other Eastern Bloc socialist repub ...
) which engaged in a decades-long standoff known as the Cold War. The period was marked by a new arms race as the USSR became the second nation to develop nuclear weapons, which were produced by both sides in sufficient numbers to end most human life on the planet had a large-scale nuclear exchange ever occurred.
Mutually assured destruction Mutual assured destruction (MAD) is a doctrine of military strategy and national security policy which posits that a full-scale use of nuclear weapons by an attacker on a nuclear-armed defender with second-strike capabilities would cause the ...
is credited by many historians as having prevented such an exchange, each side being unable to strike first at the other without ensuring an equally devastating retaliatory strike. Unable to engage one another directly, the conflict played out in a series of
proxy war A proxy war is an armed conflict between two states or non-state actors, one or both of which act at the instigation or on behalf of other parties that are not directly involved in the hostilities. In order for a conflict to be considered a pr ...
s around the world—particularly in China,
Korea Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or near the 38th parallel, with North Korea (Democratic People's Republic of Korea) comprising its northern half and South Korea (Republic o ...
,
Cuba Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country comprising the island of Cuba, as well as Isla de la Juventud and several minor archipelagos. Cuba is located where the northern Caribbea ...
,
Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making i ...
, and
Afghanistan Afghanistan, officially the Islamic Emirate of Afghanistan,; prs, امارت اسلامی افغانستان is a landlocked country located at the crossroads of Central Asia and South Asia. Referred to as the Heart of Asia, it is bordere ...
—as the USSR sought to export communism while the US attempted to contain it. The technological competition between the two sides led to substantial investment in research and development which produced innovations that reached far beyond the battlefield, such as space exploration and the Internet. In the latter half of the century, most of the European-colonized world in Africa and Asia gained independence in a process of
decolonization Decolonization or decolonisation is the undoing of colonialism, the latter being the process whereby imperial nations establish and dominate foreign territories, often overseas. Some scholars of decolonization focus especially on separatism, in ...
. Meanwhile,
globalization Globalization, or globalisation (English in the Commonwealth of Nations, Commonwealth English; American and British English spelling differences#-ise, -ize (-isation, -ization), see spelling differences), is the process of foreign relation ...
opened the door for several nations to exert a strong influence over many world affairs. The US's global military presence spread
American culture The culture of the United States of America is primarily of Western, and European origin, yet its influences includes the cultures of Asian American, African American, Latin American, and Native American peoples and their cultures. The U ...
around the world with the advent of the Hollywood motion picture industry and
Broadway Broadway may refer to: Theatre * Broadway Theatre (disambiguation) * Broadway theatre, theatrical productions in professional theatres near Broadway, Manhattan, New York City, U.S. ** Broadway (Manhattan), the street **Broadway Theatre (53rd Stree ...
,
jazz Jazz is a music genre that originated in the African-American communities of New Orleans, Louisiana in the late 19th and early 20th centuries, with its roots in blues and ragtime. Since the 1920s Jazz Age, it has been recognized as a m ...
, rock music, and pop music, fast food and
hippy A hippie, also spelled hippy, especially in British English, is someone associated with the counterculture of the 1960s, originally a youth movement that began in the United States during the mid-1960s and spread to different countries around ...
counterculture, hip-hop, house music, and disco, as well as street style, all of which came to be identified with the concepts of popular culture and
youth culture Youth culture refers to the societal norms of children, adolescents, and young adults. Specifically, it comprises the processes and symbolic systems that are shared by the youth and are distinct from those of adults in the community. An emphasi ...
. After the Soviet Union collapsed under internal pressure in 1991, most of the communist governments it had supported around the world were dismantled—with the notable exceptions of China,
North Korea North Korea, officially the Democratic People's Republic of Korea (DPRK), is a country in East Asia. It constitutes the northern half of the Korean Peninsula and shares borders with China and Russia to the north, at the Yalu (Amnok) and T ...
,
Cuba Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country comprising the island of Cuba, as well as Isla de la Juventud and several minor archipelagos. Cuba is located where the northern Caribbea ...
,
Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making i ...
, and Laos—followed by awkward transitions into market economies.


Nature of innovation and change

Due to continuing industrialization and expanding trade, many significant changes of the century were, directly or indirectly, economic and technological in nature. Inventions such as the light bulb, the
automobile A car or automobile is a motor vehicle with wheels. Most definitions of ''cars'' say that they run primarily on roads, seat one to eight people, have four wheels, and mainly transport people instead of goods. The year 1886 is regarde ...
, and the telephone in the late 19th century, followed by
supertanker An oil tanker, also known as a petroleum tanker, is a ship designed for the bulk transport of oil or its products. There are two basic types of oil tankers: crude tankers and product tankers. Crude tankers move large quantities of unrefined ...
s, airliners, motorways, radio, television, air conditioning,
antibiotics An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the treatment and prevention o ...
,
nuclear power Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced ...
, frozen food, computers and microcomputers, the Internet, and mobile telephones affected people's
quality of life Quality of life (QOL) is defined by the World Health Organization as "an individual's perception of their position in life in the context of the culture and value systems in which they live and in relation to their goals, expectations, standards ...
across the developed world. The quantity of goods consumed by the average person expanded massively. Scientific research, engineering professionalization and technological development—much of it motivated by the Cold War arms race—drove changes in everyday life.


Social change

At the beginning of the century, strong discrimination based on race and sex was significant in most societies. Although the Atlantic slave trade had ended in the 19th century, movements for equality for non-white people in the white-dominated societies of North America, Europe, and
South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. It is bounded to the south by of coastline that stretch along the Atlantic Ocean, South Atlantic and Indian Oceans; to the ...
continued. By the end of the 20th century, in many parts of the world, women had the same legal rights as men, and racism had come to be seen as unacceptable, a sentiment often backed up by legislation. When the Republic of India was constituted, the disadvantaged classes of the caste system in India became entitled to affirmative action benefits in education, employment and government. Attitudes toward pre-marital sex changed rapidly in many societies during the sexual revolution of the 1960s and 1970s. Attitudes towards homosexuality also began to change in the later part of the century.


Earth at the end of the 20th century

Economic growth and technological progress had radically altered daily lives. Europe appeared to be at a sustainable peace for the first time in recorded history. The people of the
Indian subcontinent The Indian subcontinent is a list of the physiographic regions of the world, physiographical region in United Nations geoscheme for Asia#Southern Asia, Southern Asia. It is situated on the Indian Plate, projecting southwards into the Indian O ...
, a sixth of the world population at the end of the 20th century, had attained an indigenous independence for the first time in centuries. China, an ancient nation comprising a fifth of the world population, was finally open to the world, creating a new state after the near-complete destruction of the old cultural order. With the end of colonialism and the Cold War, nearly a billion people in Africa were left in new nation states. The world was undergoing its second major period of
globalization Globalization, or globalisation (English in the Commonwealth of Nations, Commonwealth English; American and British English spelling differences#-ise, -ize (-isation, -ization), see spelling differences), is the process of foreign relation ...
; the first, which started in the 18th century, having been terminated by World War I. Since the US was in a dominant position, a major part of the process was
Americanization Americanization or Americanisation (see spelling differences) is the influence of American culture and business on other countries outside the United States of America, including their media, cuisine, business practices, popular culture, te ...
. The influence of China and India was also rising, as the world's largest populations were rapidly integrating with the world economy.
Terrorism Terrorism, in its broadest sense, is the use of criminal violence to provoke a state of terror or fear, mostly with the intention to achieve political or religious aims. The term is used in this regard primarily to refer to intentional violen ...
, dictatorship, and the spread of
nuclear weapon A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion reactions ( thermonuclear bomb), producing a nuclear explosion. Both bom ...
s were pressing global issues. The world was still blighted by small-scale wars and other violent conflicts, fueled by competition over resources and by ethnic conflicts. Disease threatened to destabilize many regions of the world. New viruses such as the
West Nile virus West Nile virus (WNV) is a single-stranded RNA virus that causes West Nile fever. It is a member of the family '' Flaviviridae'', from the genus '' Flavivirus'', which also contains the Zika virus, dengue virus, and yellow fever virus. The v ...
continued to spread.
Malaria Malaria is a mosquito-borne infectious disease that affects humans and other animals. Malaria causes symptoms that typically include fever, tiredness, vomiting, and headaches. In severe cases, it can cause jaundice, seizures, coma, or death. S ...
and other diseases affected large populations. Millions were infected with HIV, the virus which causes AIDS. The virus was becoming an epidemic in southern Africa. Based on research done by climate scientists, the majority of the scientific community consider that in the long term environmental problems pose a serious threat. One argument is that of
global warming In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to E ...
occurring due to human-caused emission of greenhouse gases, particularly
carbon dioxide Carbon dioxide ( chemical formula ) is a chemical compound made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature. In the air, carbon dioxide is trans ...
produced by the burning of fossil fuels. This prompted many nations to negotiate and sign the Kyoto treaty, which set mandatory limits on carbon dioxide emissions.
World population In demographics, the world population is the total number of humans currently living. It was estimated by the United Nations to have exceeded 8 billion in November 2022. It took over 200,000 years of human prehistory and history for th ...
increased from about 1.6 billion people in 1901 to 6.1 billion at the century's end.


Wars and politics

The number of people killed during the century by government actions was in the hundreds of millions. This includes deaths caused by wars, genocide, politicide and mass murders. The deaths from acts of war during the two world wars alone have been estimated at between 50 and 80 million. Political scientist Rudolph Rummel estimated 262,000,000 deaths caused by
democide Democide is a term coined by American political scientist Rudolph Rummel to describe "the intentional killing of an unarmed or disarmed person by government agents acting in their authoritative capacity and pursuant to government policy or high ...
, which excludes those killed in war battles, civilians unintentionally killed in war and killings of rioting mobs. According to
Charles Tilly Charles Tilly (May 27, 1929 – April 29, 2008) was an American sociologist, political scientist, and historian who wrote on the relationship between politics and society. He was a professor of history, sociology, and social science at the Uni ...
, "Altogether, about 100 million people died as a direct result of action by organized military units backed by one government or another over the course of the century. Most likely a comparable number of civilians died of war-induced disease and other indirect effects." It is estimated that approximately 70 million Europeans died through war, violence and famine between 1914 and 1945. * The
Armenian Armenian may refer to: * Something of, from, or related to Armenia, a country in the South Caucasus region of Eurasia * Armenians, the national people of Armenia, or people of Armenian descent ** Armenian Diaspora, Armenian communities across the ...
,
Syriac Syriac may refer to: *Syriac language, an ancient dialect of Middle Aramaic *Sureth, one of the modern dialects of Syriac spoken in the Nineveh Plains region * Syriac alphabet ** Syriac (Unicode block) ** Syriac Supplement * Neo-Aramaic languages a ...
and
Greek genocide The Greek genocide (, ''Genoktonia ton Ellinon''), which included the Pontic genocide, was the systematic killing of the Christian Ottoman Greek population of Anatolia which was carried out mainly during World War I and its aftermath (1914� ...
were the systematic destruction, mass murder and expulsion of the
Armenians Armenians ( hy, հայեր, '' hayer'' ) are an ethnic group native to the Armenian highlands of Western Asia. Armenians constitute the main population of Armenia and the ''de facto'' independent Artsakh. There is a wide-ranging diasp ...
, Assyrians and
Greeks The Greeks or Hellenes (; el, Έλληνες, ''Éllines'' ) are an ethnic group and nation indigenous to the Eastern Mediterranean and the Black Sea regions, namely Greece, Cyprus, Albania, Italy, Turkey, Egypt, and, to a lesser extent, oth ...
in the
Ottoman Empire The Ottoman Empire, * ; is an archaic version. The definite article forms and were synonymous * and el, Оθωμανική Αυτοκρατορία, Othōmanikē Avtokratoria, label=none * info page on book at Martin Luther University) ...
during
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...
, spearheaded by the ruling
Committee of Union and Progress The Committee of Union and Progress (CUP) ( ota, اتحاد و ترقى جمعيتی, translit=İttihad ve Terakki Cemiyeti, script=Arab), later the Union and Progress Party ( ota, اتحاد و ترقى فرقه‌سی, translit=İttihad ve Tera ...
(CUP). * Rising nationalism and increasing national awareness were among the many causes of World War I (1914–1918), the first of two wars to involve many major world powers including Germany, France, Italy, Japan, Russia/
USSR The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nationa ...
, the
British Empire The British Empire was composed of the dominions, colonies, protectorates, mandates, and other territories ruled or administered by the United Kingdom and its predecessor states. It began with the overseas possessions and trading posts e ...
and the United States. World War I led to the creation of many new countries, especially in Eastern Europe. At the time, it was said by many to be the " war to end all wars". * After gaining political rights in the United States and much of Europe in the first part of the century, and with the advent of new birth control techniques, women became more independent throughout the century. * Industrial warfare greatly increased in its scale and complexity during the first half of the 20th century. Notable developments included chemical warfare, the introduction of military aviation and the widespread use of submarines. The introduction of
nuclear warfare Nuclear warfare, also known as atomic warfare, is a theoretical military conflict or prepared political strategy that deploys nuclear weaponry. Nuclear weapons are weapons of mass destruction; in contrast to conventional warfare, nuclear ...
in the mid-20th century marked the definite transition to
modern warfare Modern warfare is warfare that is in notable contrast with previous military concepts, methods, and technology, emphasizing how combatants must modernize to preserve their battle worthiness. As such, it is an evolving subject, seen different ...
. * Civil wars occurred in many nations. A violent
civil war A civil war or intrastate war is a war between organized groups within the same state (or country). The aim of one side may be to take control of the country or a region, to achieve independence for a region, or to change government policies ...
broke out in Spain in 1936 when General Francisco Franco rebelled against the
Second Spanish Republic The Spanish Republic (), commonly known as the Second Spanish Republic (), was the form of government in Spain from 1931 to 1939. The Republic was proclaimed on 14 April 1931, after the deposition of King Alfonso XIII, and was dissolved on 1 ...
. Many consider this war as a testing battleground for World War II, as the fascist armies bombed some Spanish territories. * The Great Depression in the 1930s led to the rise of
Fascism Fascism is a far-right, authoritarian, ultra-nationalist political ideology and movement,: "extreme militaristic nationalism, contempt for electoral democracy and political and cultural liberalism, a belief in natural social hierarchy an ...
and
Nazism Nazism ( ; german: Nazismus), the common name in English for National Socialism (german: Nationalsozialismus, ), is the far-right totalitarian political ideology and practices associated with Adolf Hitler and the Nazi Party (NSDAP) i ...
in Europe. *
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ...
(1939–1945) involved Eastern Asia and the Pacific, in the form of Japanese aggression against China and the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...
. Civilians also suffered greatly in World War II, due to the
aerial bombing of cities The aerial bombing of cities is an optional element of strategic bombing, which became widespread in warfare during World War I. The bombing of cities grew to a vast scale in World War II, and is still practiced today. The development of ae ...
on both sides, and the German
genocide Genocide is the intentional destruction of a people—usually defined as an ethnic, national, racial, or religious group—in whole or in part. Raphael Lemkin coined the term in 1944, combining the Greek word (, "race, people") with the Lat ...
of the Jews and others, known as
the Holocaust The Holocaust, also known as the Shoah, was the genocide of European Jews during World War II. Between 1941 and 1945, Nazi Germany and its collaborators systematically murdered some six million Jews across German-occupied Europe; ...
. * During World War I, in the Russian Revolution of 1917, 300 years of
Romanov The House of Romanov (also transcribed Romanoff; rus, Романовы, Románovy, rɐˈmanəvɨ) was the reigning imperial house of Russia from 1613 to 1917. They achieved prominence after the Tsarina, Anastasia Romanova, was married to ...
reign were ended and the
Bolsheviks The Bolsheviks (russian: Большевики́, from большинство́ ''bol'shinstvó'', 'majority'),; derived from ''bol'shinstvó'' (большинство́), "majority", literally meaning "one of the majority". also known in English ...
, under the leadership of
Vladimir Lenin Vladimir Ilyich Ulyanov. ( 1870 – 21 January 1924), better known as Vladimir Lenin,. was a Russian revolutionary, politician, and political theorist. He served as the first and founding head of government of Soviet Russia from 1917 to 1 ...
, established the world's first Communist state. After the Soviet Union's involvement in World War II, communism became a major force in
global politics Global politics, also known as world politics, names both the discipline that studies the political and economic patterns of the world and the field that is being studied. At the centre of that field are the different processes of political globa ...
, notably in Eastern Europe, China,
Indochina Mainland Southeast Asia, also known as the Indochinese Peninsula or Indochina, is the continental portion of Southeast Asia. It lies east of the Indian subcontinent and south of Mainland China and is bordered by the Indian Ocean to the west an ...
and
Cuba Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country comprising the island of Cuba, as well as Isla de la Juventud and several minor archipelagos. Cuba is located where the northern Caribbea ...
, where
communist parties A communist party is a political party that seeks to realize the socio-economic goals of communism. The term ''communist party'' was popularized by the title of '' The Manifesto of the Communist Party'' (1848) by Karl Marx and Friedrich Engels. ...
gained near-absolute power. * The Cold War (1947–1989) involved an arms race and increasing competition between the two major players in the world: the Soviet Union and the United States. This competition included the development and improvement of
nuclear weapon A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion reactions ( thermonuclear bomb), producing a nuclear explosion. Both bom ...
s and the
Space Race The Space Race was a 20th-century competition between two Cold War rivals, the United States and the Soviet Union, to achieve superior spaceflight capability. It had its origins in the ballistic missile-based nuclear arms race between the t ...
. This led to the
proxy war A proxy war is an armed conflict between two states or non-state actors, one or both of which act at the instigation or on behalf of other parties that are not directly involved in the hostilities. In order for a conflict to be considered a pr ...
s with the
Western bloc The Western Bloc, also known as the Free Bloc, the Capitalist Bloc, the American Bloc, and the NATO Bloc, was a coalition of countries that were officially allied with the United States during the Cold War of 1947–1991. It was spearheaded by ...
, including wars in
Korea Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or near the 38th parallel, with North Korea (Democratic People's Republic of Korea) comprising its northern half and South Korea (Republic o ...
(1950–1953) and
Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making i ...
(1957–1975). * The
Soviet The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nation ...
authorities caused the deaths of millions of their own citizens to eliminate domestic opposition. More than 18 million people passed through the
Gulag The Gulag, an acronym for , , "chief administration of the camps". The original name given to the system of camps controlled by the GPU was the Main Administration of Corrective Labor Camps (, )., name=, group= was the government agency in ...
, with a further 6 million being
exiled ''Exiled'' () is a 2006 Hong Kong action drama film produced and directed by Johnnie To, and starring Anthony Wong, Francis Ng, Nick Cheung, Josie Ho, Roy Cheung and Lam Suet, with special appearances by Richie Jen and Simon Yam. The action ...
to remote areas of the
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
. * The
civil rights movement The civil rights movement was a nonviolent social and political movement and campaign from 1954 to 1968 in the United States to abolish legalized institutional racial segregation, discrimination, and disenfranchisement throughout the Unite ...
in the United States and the movement against
apartheid Apartheid (, especially South African English: , ; , "aparthood") was a system of institutionalised racial segregation that existed in South Africa and South West Africa (now Namibia) from 1948 to the early 1990s. Apartheid was ...
in South Africa challenged racial segregation in those countries. * The two
world war A world war is an international conflict which involves all or most of the world's major powers. Conventionally, the term is reserved for two major international conflicts that occurred during the first half of the 20th century, World WarI (1914 ...
s led to efforts to increase international cooperation, notably through the founding of the
League of Nations The League of Nations (french: link=no, Société des Nations ) was the first worldwide intergovernmental organisation whose principal mission was to maintain world peace. It was founded on 10 January 1920 by the Paris Peace Conference that ...
after World War I, and its successor, the United Nations, after World War II. * Nationalist movements in the
subcontinent A continent is any of several large landmasses. Generally identified by convention rather than any strict criteria, up to seven geographical regions are commonly regarded as continents. Ordered from largest in area to smallest, these seven ...
led to the independence and partition of
Jawaharlal Nehru Pandit Jawaharlal Nehru (; ; ; 14 November 1889 – 27 May 1964) was an Indian anti-colonial nationalist, secular humanist, social democrat— * * * * and author who was a central figure in India during the middle of the 20t ...
-led India and Muhammad Ali Jinnah-led Pakistan. *
Mahatma Gandhi Mohandas Karamchand Gandhi (; ; 2 October 1869 – 30 January 1948), popularly known as Mahatma Gandhi, was an Indian lawyer, anti-colonial nationalist Quote: "... marks Gandhi as a hybrid cosmopolitan figure who transformed ... anti- ...
's nonviolence and
Indian independence movement The Indian independence movement was a series of historic events with the ultimate aim of ending British Raj, British rule in India. It lasted from 1857 to 1947. The first nationalistic revolutionary movement for Indian independence emerged ...
against the
British Empire The British Empire was composed of the dominions, colonies, protectorates, mandates, and other territories ruled or administered by the United Kingdom and its predecessor states. It began with the overseas possessions and trading posts e ...
influenced many political movements around the world, including the
civil rights movement The civil rights movement was a nonviolent social and political movement and campaign from 1954 to 1968 in the United States to abolish legalized institutional racial segregation, discrimination, and disenfranchisement throughout the Unite ...
in the U.S., and freedom movements in South Africa and
Burma Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John Wells explai ...
. * The creation of Israel in 1948, a
Jewish state In world politics, Jewish state is a characterization of Israel as the nation-state and sovereign homeland of the Jewish people. Modern Israel came into existence on 14 May 1948 as a polity to serve as the homeland for the Jewish people. ...
in the Middle East, at the end of the British Mandate for Palestine, fueled many regional conflicts. These were also influenced by the vast oil fields in many of the other countries of the predominantly Arab region. *
The end The End may refer to: Films * ''The End'' (1953 film), a film by Christopher Maclaine * ''The End'' (1978 film), a comedy by Burt Reynolds * ''The End'' (1997 film), a Canadian film of 1997 * ''The End'' (1998 film), a skateboarding document ...
of
colonialism Colonialism is a practice or policy of control by one people or power over other people or areas, often by establishing colony, colonies and generally with the aim of economic dominance. In the process of colonisation, colonisers may impose the ...
led to the independence of many African and Asian countries. During the Cold War, many of these aligned with the United States, the USSR, or China for defense. * After a long period of civil wars and conflicts with western powers, China's last imperial dynasty ended in 1912. The resulting republic was replaced, after another civil war, by a communist
People's Republic People's republic is an official title, usually used by some currently or formerly communist or left-wing states. It is mainly associated with soviet republics, socialist states following people's democracy, sovereign states with a democratic- ...
in 1949. At the end of the 20th century, though still ruled by a communist party, China's economic system had largely transformed to
capitalism Capitalism is an economic system based on the private ownership of the means of production and their operation for profit. Central characteristics of capitalism include capital accumulation, competitive markets, price system, priva ...
. * The Great Chinese Famine was a direct cause of the death of tens of millions of Chinese peasants between 1959 and 1962. It is thought to be the largest
famine A famine is a widespread scarcity of food, caused by several factors including war, natural disasters, crop failure, population imbalance, widespread poverty, an economic catastrophe or government policies. This phenomenon is usually accompani ...
in
human history Human history, also called world history, is the narrative of humanity's past. It is understood and studied through anthropology, archaeology, genetics, and linguistics. Since the invention of writing, human history has been studied throug ...
.China's great famine: 40 years later
. '' British Medical Journal'' 1999;319:1619–1621 (December 18 )
* The
Vietnam War The Vietnam War (also known by other names) was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. It was the second of the Indochina Wars and was officially fought between North Vietnam a ...
caused two million deaths, changed the dynamics between the
Eastern Eastern may refer to: Transportation *China Eastern Airlines, a current Chinese airline based in Shanghai *Eastern Air, former name of Zambia Skyways *Eastern Air Lines, a defunct American airline that operated from 1926 to 1991 *Eastern Air Li ...
and
Western Bloc The Western Bloc, also known as the Free Bloc, the Capitalist Bloc, the American Bloc, and the NATO Bloc, was a coalition of countries that were officially allied with the United States during the Cold War of 1947–1991. It was spearheaded by ...
s, and altered global North-South relations. * The
Soviet War in Afghanistan The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national ...
caused one million deaths and contributed to the downfall of the Soviet Union. * The
revolutions of 1989 The Revolutions of 1989, also known as the Fall of Communism, was a revolutionary wave that resulted in the end of most communist states in the world. Sometimes this revolutionary wave is also called the Fall of Nations or the Autumn of Nat ...
released Eastern and Central Europe from Soviet supremacy. Soon thereafter, the
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
,
Czechoslovakia , rue, Чеськословеньско, , yi, טשעכאסלאוואקיי, , common_name = Czechoslovakia , life_span = 1918–19391945–1992 , p1 = Austria-Hungary , image_p1 ...
, and
Yugoslavia Yugoslavia (; sh-Latn-Cyrl, separator=" / ", Jugoslavija, Југославија ; sl, Jugoslavija ; mk, Југославија ;; rup, Iugoslavia; hu, Jugoszlávia; rue, label=Pannonian Rusyn, Югославия, translit=Juhoslavija ...
dissolved, the latter violently over several years, into
successor state Succession of states is a concept in international relations regarding a successor state that has become a sovereign state over a territory (and populace) that was previously under the sovereignty of another state. The theory has its roots in 19th- ...
s, many rife with
ethnic nationalism Ethnic nationalism, also known as ethnonationalism, is a form of nationalism wherein the nation and nationality are defined in terms of ethnicity, with emphasis on an ethnocentric (and in some cases an ethnocratic) approach to various politi ...
. Meanwhile,
East Germany East Germany, officially the German Democratic Republic (GDR; german: Deutsche Demokratische Republik, , DDR, ), was a country that existed from its creation on 7 October 1949 until its dissolution on 3 October 1990. In these years the state ...
and
West Germany West Germany is the colloquial term used to indicate the Federal Republic of Germany (FRG; german: Bundesrepublik Deutschland , BRD) between its formation on 23 May 1949 and the German reunification through the accession of East Germany on 3 O ...
were reunified in 1990. * The
Tiananmen Square protests of 1989 The Tiananmen Square protests, known in Chinese as the June Fourth Incident (), were student-led demonstrations held in Tiananmen Square, Beijing during 1989. In what is known as the Tiananmen Square Massacre, or in Chinese the June Fourth ...
, culminating in the deaths of hundreds of civilian protesters, were a series of demonstrations in and near Tiananmen Square in Beijing, China. Led mainly by students and intellectuals, the protests occurred in a year that saw the collapse of a number of communist governments around the world. * European integration began in earnest in the 1950s, and eventually led to the
European Union The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been de ...
, a political and economic union that comprised 15 countries at the end of the 20th century.


Culture and entertainment

* As the century began, Paris was the artistic capital of the world, where both French and foreign writers, composers and visual artists gathered. By the middle of the century New York City had become the artistic capital of the world. * Theater, films, music and the media had a major influence on fashion and trends in all aspects of life. As many films and much music originate from the United States, American culture spread rapidly over the world. * 1953 saw the
coronation of Queen Elizabeth II The coronation of Elizabeth II took place on 2 June 1953 at Westminster Abbey in London. She acceded to the throne at the age of 25 upon the death of her father, George VI, on 6 February 1952, being proclaimed queen by her privy and executive ...
, an iconic figure of the century. *
Visual culture Visual culture is the aspect of culture expressed in visual images. Many academic fields study this subject, including cultural studies, art history, critical theory, philosophy, media studies, Deaf Studies, and anthropology. The field of vi ...
became more dominant not only in films but in comics and television as well. During the century a new skilled understanding of narrativist imagery was developed. * Computer games and internet surfing became new and popular form of entertainment during the last 25 years of the century. * In literature, science fiction, fantasy (with well-developed fictional worlds, rich in detail), and
alternative history Alternate history (also alternative history, althist, AH) is a genre of speculative fiction of stories in which one or more historical events occur and are resolved differently than in real life. As conjecture based upon historical fact, alte ...
fiction gained popularity. Detective fiction gained popularity in the interwar period. In the United States in 1961 Grove Press published ''
Tropic of Cancer The Tropic of Cancer, which is also referred to as the Northern Tropic, is the most northerly circle of latitude on Earth at which the Sun can be directly overhead. This occurs on the June solstice, when the Northern Hemisphere is tilted tow ...
'' a novel by
Henry Miller Henry Valentine Miller (December 26, 1891 – June 7, 1980) was an American novelist. He broke with existing literary forms and developed a new type of semi-autobiographical novel that blended character study, social criticism, philosophical ref ...
redefining pornography and censorship in publishing in America.


Music

The invention of music recording technologies such as the phonograph record, and dissemination technologies such as
radio broadcasting Radio broadcasting is transmission of audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience. In terrestrial radio broadcasting the radio waves are broadcast by a land-based radio ...
, massively expanded the audience for music. Prior to the 20th century, music was generally only experienced in live performances. Many new genres of music were established during the 20th century. * Igor Stravinsky revolutionized classical composition. * In the 1920s, Arnold Schoenberg developed the
twelve-tone technique The twelve-tone technique—also known as dodecaphony, twelve-tone serialism, and (in British usage) twelve-note composition—is a method of musical composition first devised by Austrian composer Josef Matthias Hauer, who published his "law o ...
, which became widely influential on 20th-century composers. * In classical music,
composition Composition or Compositions may refer to: Arts and literature *Composition (dance), practice and teaching of choreography *Composition (language), in literature and rhetoric, producing a work in spoken tradition and written discourse, to include v ...
branched out into many completely new domains, including dodecaphony, aleatoric (chance) music, and minimalism. *
Tango Tango is a partner dance and social dance that originated in the 1880s along the Río de la Plata, the natural border between Argentina and Uruguay. The tango was born in the impoverished port areas of these countries as the result of a combina ...
was created in Argentina and became extremely popular in the rest of the Americas and Europe. * Blues and
jazz Jazz is a music genre that originated in the African-American communities of New Orleans, Louisiana in the late 19th and early 20th centuries, with its roots in blues and ragtime. Since the 1920s Jazz Age, it has been recognized as a m ...
music became popularized during the 1910s, 1920s and 1930s in the United States.
Bebop Bebop or bop is a style of jazz developed in the early-to-mid-1940s in the United States. The style features compositions characterized by a fast tempo, complex chord progressions with rapid chord changes and numerous changes of key, instrumen ...
develops as a form of jazz in the 1940s. *
Country music Country (also called country and western) is a genre of popular music that originated in the Southern and Southwestern United States in the early 1920s. It primarily derives from blues, church music such as Southern gospel and spirituals, ...
develops in the 1920s and 1930s in the United States. * Blues and country went on to influence
rock and roll Rock and roll (often written as rock & roll, rock 'n' roll, or rock 'n roll) is a genre of popular music that evolved in the United States during the late 1940s and early 1950s. It originated from African-American music such as jazz, rhythm a ...
in the 1950s, which along with
folk music Folk music is a music genre that includes traditional folk music and the contemporary genre that evolved from the former during the 20th-century folk revival. Some types of folk music may be called world music. Traditional folk music has b ...
, increased in popularity with the
British Invasion The British Invasion was a cultural phenomenon of the mid-1960s, when rock and pop music acts from the United Kingdom and other aspects of British culture became popular in the United States and significant to the rising "counterculture" on ...
of the mid-to-late 1960s. * Rock soon branched into many different genres, including
folk rock Folk rock is a hybrid music genre that combines the elements of folk and rock music, which arose in the United States, Canada, and the United Kingdom in the mid-1960s. In the U.S., folk rock emerged from the folk music revival. Performers s ...
, heavy metal, punk rock, and
alternative rock Alternative rock, or alt-rock, is a category of rock music that emerged from the independent music underground of the 1970s and became widely popular in the 1990s. "Alternative" refers to the genre's distinction from mainstream or commerci ...
and became the dominant genre of
popular music Popular music is music with wide appeal that is typically distributed to large audiences through the music industry. These forms and styles can be enjoyed and performed by people with little or no musical training.Popular Music. (2015). ''Fu ...
. * This was challenged with the rise of hip hop in the 1980s and 1990s. * Other genres such as house,
techno Techno is a Music genre, genre of electronic dance music (EDM) which is generally music production, produced for use in a continuous DJ set, with tempo often varying between 120 and 150 beats per minute (bpm). The central Drum beat, rhythm is typ ...
,
reggae Reggae () is a music genre that originated in Jamaica in the late 1960s. The term also denotes the modern popular music of Jamaica and its diaspora. A 1968 single by Toots and the Maytals, " Do the Reggay" was the first popular song to use ...
, and
soul In many religious and philosophical traditions, there is a belief that a soul is "the immaterial aspect or essence of a human being". Etymology The Modern English noun '' soul'' is derived from Old English ''sāwol, sāwel''. The earliest atte ...
all developed during the latter half of the century and went through various periods of popularity. * Synthesizers began to be employed widely in music and crossed over into the mainstream with
new wave music New wave is a loosely defined music genre that encompasses pop-oriented styles from the late 1970s and the 1980s. It was originally used as a catch-all for the various styles of music that emerged after punk rock, including punk itself. La ...
in the 1980s.
Electronic instruments An electronic musical instrument or electrophone is a musical instrument that produces sound using electronic circuitry. Such an instrument sounds by outputting an electrical, electronic or digital audio signal that ultimately is plugged into a ...
have been widely deployed in all manners of popular music and has led to the development of such genres as house, synth-pop, electronic dance music, and industrial.


Film, television and theatre

Film as an artistic medium was created in the 20th century. The first modern movie theatre was established in
Pittsburgh Pittsburgh ( ) is a city in the Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County. It is the most populous city in both Allegheny County and Western Pennsylvania, the second-most populous city in Pennsylva ...
in 1905. Hollywood developed as the center of American film production. While the first films were in black and white,
technicolor Technicolor is a series of Color motion picture film, color motion picture processes, the first version dating back to 1916, and followed by improved versions over several decades. Definitive Technicolor movies using three black and white films ...
was developed in the 1920s to allow for color films.
Sound film A sound film is a motion picture with synchronized sound, or sound technologically coupled to image, as opposed to a silent film. The first known public exhibition of projected sound films took place in Paris in 1900, but decades passed before ...
s were developed, with the first full-length feature film, ''
The Jazz Singer ''The Jazz Singer'' is a 1927 American musical drama film directed by Alan Crosland. It is the first feature-length motion picture with both synchronized recorded music score as well as lip-synchronous singing and speech (in several isolate ...
'', released in 1927. The
Academy Awards The Academy Awards, better known as the Oscars, are awards for artistic and technical merit for the American and international film industry. The awards are regarded by many as the most prestigious, significant awards in the entertainment ind ...
were established in 1929. Animation was also developed in the 1920s, with the first full-length cel animated feature film '' Snow White and the Seven Dwarfs'', released in 1937. Computer-generated imagery was developed in the 1980s, with the first full-length CGI-animated film ''
Toy Story ''Toy Story'' is a 1995 American computer-animated comedy film directed by John Lasseter (in his feature directorial debut), produced by Pixar Animation Studios and released by Walt Disney Pictures. The first installment in the '' Toy Story ...
'' released in 1995. * Julie Andrews,
Harry Belafonte Harry Belafonte (born Harold George Bellanfanti Jr.; March 1, 1927) is an American singer, activist, and actor. As arguably the most successful Jamaican-American pop star, he popularized the Trinbagonian Caribbean musical style with an interna ...
, Humphrey Bogart, Marlon Brando, James Cagney, Charlie Chaplin, Sean Connery,
Tom Cruise Thomas Cruise Mapother IV (born July 3, 1962), known professionally as Tom Cruise, is an American actor and producer. One of the world's highest-paid actors, he has received various accolades, including an Honorary Palme d'Or and three Go ...
, James Dean, Robert De Niro, Harrison Ford,
Clark Gable William Clark Gable (February 1, 1901November 16, 1960) was an American film actor, often referred to as "The King of Hollywood". He had roles in more than 60 motion pictures in multiple genres during a career that lasted 37 years, three decades ...
,
Cary Grant Cary Grant (born Archibald Alec Leach; January 18, 1904November 29, 1986) was an English-American actor. He was known for his Mid-Atlantic accent, debonair demeanor, light-hearted approach to acting, and sense of comic timing. He was one o ...
, Audrey Hepburn, Katharine Hepburn, Bruce Lee,
Marilyn Monroe Marilyn Monroe (; born Norma Jeane Mortenson; 1 June 1926 4 August 1962) was an American actress. Famous for playing comedic " blonde bombshell" characters, she became one of the most popular sex symbols of the 1950s and early 1960s, as wel ...
, Paul Newman,
Jack Nicholson John Joseph Nicholson (born April 22, 1937) is an American retired actor and filmmaker. He is widely regarded as one of the greatest actors of all time. In many of his films, he played rebels against the social structure. He received numerous ...
, Al Pacino, Sidney Poitier,
Meryl Streep Mary Louise Meryl Streep (born June 22, 1949) is an American actress. Often described as "the best actress of her generation", Streep is particularly known for her versatility and accent adaptability. She has received numerous accolades throu ...
, Elizabeth Taylor, James Stewart, Jane Fonda and John Wayne are among the most popular Hollywood stars of the 20th century. *
Madhubala Madhubala (born Mumtaz Jehan Begum Dehlavi; 14 February 1933 – 23 February 1969) was an Indian actress and producer who worked in Hindi-language films. She ranked as one of the highest-paid entertainers in India in the post-independence era, ...
,
Jean-Paul Belmondo Jean-Paul Charles Belmondo (; 9 April 19336 September 2021) was a French actor and producer. Initially associated with the New Wave of the 1960s, he was a major French film star for several decades from the 1960s onward. His best known credits ...
,
Karel Roden Karel Roden (born 18 May 1962) is a Czech actor, popularly known for his roles in ''Hellboy'' and ''The Bourne Supremacy'', and his voice work in '' Grand Theft Auto IV''. Life and career Roden followed his father and grandfather into acting. ...
, Sean Connery, Marcello Mastroianni,
Salah Zulfikar Salah El Din Ahmed Mourad Zulfikar ( ar, صلاح ذو الفقار; ; 18 January 1926 – 22 December 1993) was an Egyptian actor and film producer. He started his career as a police officer in the Egyptian National Police, before becoming an ac ...
,
Marlene Dietrich Marie Magdalene "Marlene" DietrichBorn as Maria Magdalena, not Marie Magdalene, according to Dietrich's biography by her daughter, Maria Riva ; however Dietrich's biography by Charlotte Chandler cites "Marie Magdalene" as her birth name . (, ; ...
,
Brigitte Bardot Brigitte Anne-Marie Bardot ( ; ; born 28 September 1934), often referred to by her initials B.B., is a former French actress, singer and model. Famous for portraying sexually emancipated characters with hedonistic lifestyles, she was one of the ...
, Omar Sharif,
Catherine Deneuve Catherine Fabienne Dorléac (born 22 October 1943), known professionally as Catherine Deneuve (, , ), is a French actress as well as an occasional singer, model, and producer, considered one of the greatest European actresses. She gained recogni ...
, Alain Delon,
Soad Hosny System of a Down (also known as SoaD or simply System) is an Armenian-American heavy metal band formed in Glendale, California, in 1994. Since 1997, the band has consisted of Serj Tankian (lead vocals, keyboards); Daron Malakian (guitar, voca ...
, Fernanda Montenegro, Sophie Marceau,
Fatima Rushdi Fatima Rushdi (1908-1996) was an Egyptian actress, singer, film director, and producer who was one of the pioneers of Egyptian cinema. Early life Born in Alexandria, Fatima Rushdi moved to Cairo at 14 to become an actress. Without any formal trai ...
, Amitabh Bachchan,
Jean Gabin Jean Gabin (; 17 May 190415 November 1976) was a French actor and singer. Considered a key figure in French cinema, he starred in several classic films including ''Pépé le Moko'' (1937), '' La grande illusion'' (1937), ''Le Quai des brumes'' ...
,
Toshiro Mifune was a Japanese actor who appeared in over 150 feature films. He is best known for his 16-film collaboration (1948–1965) with Akira Kurosawa in such works as ''Rashomon'', ''Seven Samurai'', ''The Hidden Fortress'', ''Throne of Blood'', and ' ...
,
Shoukry Sarhan Mohamed Shoukry El Husseiny Sarhan (1925–1997, ar, محمد شُكري الحسيني سرحان, Muḥammad Shukrī al-Ḥusaynī Sirḥān), better known as Shoukry Sarhan ( ar, شُكري سرحان, Shukrī Sirḥān), was an Egyptian ...
,
Lars Mikkelsen Lars Dittmann Mikkelsen (born 6 May 1964) is a Danish actor. He has played Copenhagen mayoral election candidate Troels Hartmann in the drama series '' The Killing'', Charles Augustus Magnussen in the third series of '' Sherlock'', the Russian ...
, Sophia Loren,
Youssef Wahbi Youssef Abdallah Wahbi Qotb ( ar, يوسف عبد الله هديب وهبي قطب) (14 July 1902 – 17 October 1982) was an Egyptian stage and film actor and director, a leading star of the 1930s and 1940s and one of the most prominent ...
,
Claudia Cardinale Claude Joséphine Rose "Claudia" Cardinale (; born 15 April 1938) is an Italian actress. She has starred in some of the most iconic European films of the 1960s and 1970s, acting in Italian, French, and English. Born and raised in La Goulette, a ...
, Klaus Kinski, Gérard Depardieu,
Max von Sydow Max von Sydow ( , ; born Carl Adolf von Sydow; 10 April 1929 – 8 March 2020) was a Swedish-French actor. He had a 70-year career in European and American cinema, television, and theatre, appearing in more than 150 films and several television ...
,
Faten Hamama Faten Ahmed Hamama ( ar, فاتن حمامه  ; 27 May 1931 – 17 January 2015) was an Egyptian film and television actress and film producer. She was the first wife of Ezz El-Dine Zulficar. She made her screen debut in 1939, when she was ...
,
Rutger Hauer Rutger Oelsen Hauer (; 23 January 1944 – 19 July 2019) was a Dutch actor. In 1999, he was named by the Dutch public as the Best Dutch Actor of the Century. Hauer's career began in 1969 with the title role in the Dutch television series ' ...
and Toni Servillo are among the most popular movie stars of the 20th century. *
Sergei Eisenstein Sergei Mikhailovich Eisenstein (russian: Сергей Михайлович Эйзенштейн, p=sʲɪrˈɡʲej mʲɪˈxajləvʲɪtɕ ɪjzʲɪnˈʂtʲejn, 2=Sergey Mikhaylovich Eyzenshteyn; 11 February 1948) was a Soviet film director, scree ...
, D. W. Griffith,
Cecil B. DeMille Cecil Blount DeMille (; August 12, 1881January 21, 1959) was an American film director, producer and actor. Between 1914 and 1958, he made 70 features, both silent and sound films. He is acknowledged as a founding father of the American cine ...
, Frank Capra, Howard Hawks,
John Ford John Martin Feeney (February 1, 1894 – August 31, 1973), known professionally as John Ford, was an American film director and naval officer. He is widely regarded as one of the most important and influential filmmakers of his generation. He ...
,
Orson Welles George Orson Welles (May 6, 1915 – October 10, 1985) was an American actor, director, producer, and screenwriter, known for his innovative work in film, radio and theatre. He is considered to be among the greatest and most influential f ...
,
Martin Scorsese Martin Charles Scorsese ( , ; born November 17, 1942) is an American film director, producer, screenwriter and actor. Scorsese emerged as one of the major figures of the New Hollywood era. He is the recipient of many major accolades, inclu ...
, John Huston, Alfred Hitchcock,
Akira Kurosawa was a Japanese filmmaker and painter who directed thirty films in a career spanning over five decades. He is widely regarded as one of the most important and influential filmmakers in the history of cinema. Kurosawa displayed a bold, dyna ...
,
Spike Lee Shelton Jackson "Spike" Lee (born March 20, 1957) is an American film director, producer, screenwriter, and actor. His production company, 40 Acres and a Mule Filmworks, has produced more than 35 films since 1983. He made his directorial debut ...
, Ingmar Bergman, Federico Fellini,
Walt Disney Walter Elias Disney (; December 5, 1901December 15, 1966) was an American animator, film producer and entrepreneur. A pioneer of the American animation industry, he introduced several developments in the production of cartoons. As a film p ...
, Stanley Kubrick, Steven Spielberg, Ridley Scott,
Woody Allen Heywood "Woody" Allen (born Allan Stewart Konigsberg; November 30, 1935) is an American film director, writer, actor, and comedian whose career spans more than six decades and multiple Academy Award-winning films. He began his career writing ...
,
Quentin Tarantino Quentin Jerome Tarantino (; born March 27, 1963) is an American film director, writer, producer, and actor. His films are characterized by stylized violence, extended dialogue, profanity, dark humor, non-linear storylines, cameos, ensembl ...
, James Cameron,
William Friedkin William "Billy" Friedkin (born August 29, 1935)Biskind, p. 200. is an American film and television director, producer and screenwriter closely identified with the " New Hollywood" movement of the 1970s. Beginning his career in documentaries in ...
,
Ezz El-Dine Zulficar Ezz El-Dine Ahmed Mourad Zulficar (Egyptian Arabic: عز الدين ذو الفقار, ; October 28, 1919 – July 1, 1963) was an Egyptian film director, screenwriter, actor and producer known for his distinctive style, which blends romance and ...
and George Lucas are among the most important and popular filmmakers of the 20th century. * In theater, sometimes referred to as
Broadway Broadway may refer to: Theatre * Broadway Theatre (disambiguation) * Broadway theatre, theatrical productions in professional theatres near Broadway, Manhattan, New York City, U.S. ** Broadway (Manhattan), the street **Broadway Theatre (53rd Stree ...
in New York City, playwrights such as
Eugene O'Neill Eugene Gladstone O'Neill (October 16, 1888 – November 27, 1953) was an American playwright and Nobel laureate in Nobel Prize in Literature, literature. His poetically titled plays were among the first to introduce into the U.S. the drama tech ...
, Samuel Beckett, Edward Albee,
Arthur Miller Arthur Asher Miller (October 17, 1915 – February 10, 2005) was an American playwright, essayist and screenwriter in the 20th-century American theater. Among his most popular plays are ''All My Sons'' (1947), '' Death of a Salesman'' (1 ...
and
Tennessee Williams Thomas Lanier Williams III (March 26, 1911 – February 25, 1983), known by his pen name Tennessee Williams, was an American playwright and screenwriter. Along with contemporaries Eugene O'Neill and Arthur Miller, he is considered among the thr ...
introduced innovative language and ideas to the idiom. In musical theater, figures such as
Rodgers and Hammerstein Rodgers and Hammerstein was a theater-writing team of composer Richard Rodgers (1902–1979) and lyricist-dramatist Oscar Hammerstein II (1895–1960), who together created a series of innovative and influential American musicals. Their popular ...
,
Lerner and Loewe Lerner and Loewe refers to the partnership between lyricist and librettist Alan Jay Lerner and composer Frederick Loewe.Kenny, Ellen, and James M. Salem. “A Guide to Critical Reviews, Part II: The Musical from Rodgers-and-Hart to Lerner-and-Loe ...
,
Mohammed Karim Mohammed Karim (1896–1972) ( ar, محمد كريم) was an Egyptian film director, writer A writer is a person who uses written words in different writing styles and techniques to communicate ideas. Writers produce different forms of ...
, and
Irving Berlin Irving Berlin (born Israel Beilin; yi, ישראל ביילין; May 11, 1888 – September 22, 1989) was a Russian-American composer, songwriter and lyricist. His music forms a large part of the Great American Songbook. Born in Imperial Russ ...
had an enormous impact on both film and the culture in general. *
Modern dance Modern dance is a broad genre of western concert or theatrical dance which included dance styles such as ballet, folk, ethnic, religious, and social dancing; and primarily arose out of Europe and the United States in the late 19th and early 20th ...
is born in America as a 'rebellion' against centuries-old European ballet. Dancers and choreographers
Alvin Ailey Alvin Ailey Jr. (January 5, 1931 – December 1, 1989) was an American dancer, director, choreographer, and activist who founded the Alvin Ailey American Dance Theater (AAADT). He created AAADT and its affiliated Alvin Ailey American Dance Center ...
,
Isadora Duncan Angela Isadora Duncan (May 26, 1877 or May 27, 1878 – September 14, 1927) was an American dancer and choreographer, who was a pioneer of modern contemporary dance, who performed to great acclaim throughout Europe and the US. Born and raised in ...
,
Vaslav Nijinsky Vaslav (or Vatslav) Nijinsky (; rus, Вацлав Фомич Нижинский, Vatslav Fomich Nizhinsky, p=ˈvatsləf fɐˈmʲitɕ nʲɪˈʐɨnskʲɪj; pl, Wacław Niżyński, ; 12 March 1889/18908 April 1950) was a ballet dancer and choreog ...
, Ruth St. Denis,
Mahmoud Reda Mahmoud Reda ( ar, محمود رضا; 18 March 193010 July 2020) was an Egyptian dancer and choreographer, best known for co-founding the Reda Troupe, and as an Olympic gymnast. Early life Reda was born in Cairo, Egypt. He was the eighth of ten ...
, Martha Graham,
José Limón José Arcadio Limón (January 12, 1908 – December 2, 1972) was a dancer and choreographer from Mexico and who developed what is now known as 'Limón technique'. In the 1940s, he founded the José Limón Dance Company (now the Limón Dan ...
,
Doris Humphrey Doris Batcheller Humphrey (October 17, 1895 – December 29, 1958) was an American dancer and choreographer of the early twentieth century. Along with her contemporaries Martha Graham and Katherine Dunham, Humphrey was one of the second gen ...
,
Merce Cunningham Mercier Philip "Merce" Cunningham (April 16, 1919 – July 26, 2009) was an American dancer and choreographer who was at the forefront of American modern dance for more than 50 years. He frequently collaborated with artists of other discipl ...
, and Paul Taylor re-defined movement, struggling to bring it back to its 'natural' roots and along with Jazz, created a solely American art form. Alvin Ailey is credited with popularizing modern dance and revolutionizing African-American participation in 20th-century concert dance. His company gained the nickname "Cultural Ambassador to the World" because of its extensive international touring. Ailey's choreographic masterpiece Revelations is believed to be the best known and most often seen modern dance performance.


Video games

Video games—due to the great technological steps forward in
computing Computing is any goal-oriented activity requiring, benefiting from, or creating computing machinery. It includes the study and experimentation of algorithmic processes, and development of both hardware and software. Computing has scientific, ...
since the second post-war period—are one of the new forms of entertainment that emerged in the 20th century alongside films. * While already conceptualized in the
1940s File:1940s decade montage.png, Above title bar: events during World War II (1939–1945): From left to right: Troops in an LCVP landing craft approaching Omaha Beach on D-Day; Adolf Hitler visits Paris, soon after the Battle of France; The Ho ...
50s The 50s decade ran from January 1, 50, to December 31, 59. It was the sixth decade in the Anno Domini/Common Era, if the nine-year period from 1 AD to 9 AD is considered as a "decade". Significant people * Claudius, Roman Emperor (AD 41� ...
, video games only emerged as an industry during the
1970s File:1970s decade montage.jpg, Clockwise from top left: U.S. President Richard Nixon doing the V for Victory sign after his resignation from office following the Watergate scandal in 1974; The United States was still involved in the Vietnam War ...
, and then exploded into social and cultural phenomena such as the
golden age of arcade video games The golden age of arcade video games was the period of rapid growth, technological development and cultural influence of arcade video games, from the late 1970s to the early 1980s. The period began with the release of ''Space Invaders'' in 1978, ...
, with notable releases such as
Taito is a Japanese company that specializes in video games, toys, arcade cabinets and game centers, based in Shinjuku, Tokyo. The company was founded by Michael Kogan in 1953 as the importing vodka, vending machines and jukeboxes into Japan. I ...
's ''
Space Invaders is a 1978 shoot 'em up arcade game developed by Tomohiro Nishikado. It was manufactured and sold by Taito in Japan, and licensed to the Midway division of Bally for overseas distribution. ''Space Invaders'' was the first fixed shooter an ...
'', Atari's ''
Asteroids An asteroid is a minor planet of the inner Solar System. Sizes and shapes of asteroids vary significantly, ranging from 1-meter rocks to a dwarf planet almost 1000 km in diameter; they are rocky, metallic or icy bodies with no atmosphere. ...
'', Nintendo's ''
Donkey Kong is a video game franchise created by Shigeru Miyamoto and owned by Nintendo. It follows the adventures of a gorilla named Donkey Kong (character), Donkey Kong and his clan of other Ape, apes and monkeys. The franchise primarily consists of plat ...
'',
Namco was a Japanese multinational video game and entertainment company, headquartered in Ōta, Tokyo. It held several international branches, including Namco America in Santa Clara, California, Namco Europe in London, Namco Taiwan in Kaohsiung, ...
's '' Pac-Man'' and ''
Galaga is a 1981 fixed shooter arcade video game developed and published by Namco. In North America, it was released by Midway Manufacturing. It is the sequel to '' Galaxian'' (1979), Namco's first major video game hit in arcades. Controlling a star ...
'',
Konami , is a Japanese multinational video game and entertainment company headquartered in Chūō, Tokyo, it also produces and distributes trading cards, anime, tokusatsu, pachinko machines, slot machines, and arcade cabinets. Konami has casino ...
's ''
Frogger is a 1981 arcade action game developed by Konami and manufactured by Sega. In North America, it was released by Sega/Gremlin. The object of the game is to direct a series of frogs to their homes by crossing a busy road and a hazardous rive ...
'', Capcom's ''
1942 Events Below, the events of World War II have the "WWII" prefix. January * January 1 – WWII: The Declaration by United Nations is signed by China, the United Kingdom, the United States, the Soviet Union, and 22 other nations, in w ...
'' and Sega's ''
Zaxxon is an isometric shooter arcade game, developed and released by Sega in 1982, in which the player pilots a ship through heavily defended space fortresses. Japanese electronics company Ikegami Tsushinki is also credited for having worked on the de ...
'', the worldwide success of Nintendo's ''
Super Mario Bros. is a platform game developed and published by Nintendo for the Nintendo Entertainment System (NES). The successor to the 1983 arcade game '' Mario Bros.'' and the first game in the ''Super Mario'' series, it was first released in 1985 for ...
'' and the release in the 1990s of
Sony , commonly stylized as SONY, is a Japanese multinational conglomerate corporation headquartered in Minato, Tokyo, Japan. As a major technology company, it operates as one of the world's largest manufacturers of consumer and professiona ...
PlayStation console, the first one to break the record of 100 million units sold, with '' Gran Turismo'' being the system's best selling video game. *
Video game design Video game design is the process of designing the content and rules of video games in the pre-production stage and designing the gameplay, environment, storyline and characters in the production stage. Some common video game design subdiscipline ...
becomes a discipline. Some game designers in this century stand out for their work, such as Shigeru Miyamoto, Hideo Kojima,
Sid Meier Sidney K. Meier ( ; born February 24, 1954) is a Canadian-American programmer, game designer, designer, and video game producer, producer of several strategy video games and simulation video games, including the ''Civilization (series), Civiliz ...
and Will Wright.


Art and architecture

* The art world experienced the development of new styles and explorations such as fauvism, expressionism,
Dadaism Dada () or Dadaism was an art movement of the European avant-garde in the early 20th century, with early centres in Zürich, Switzerland, at the Cabaret Voltaire (Zurich), Cabaret Voltaire (in 1916). New York Dada began c. 1915, and after 192 ...
, cubism,
de stijl ''De Stijl'' (; ), Dutch for "The Style", also known as Neoplasticism, was a Dutch art movement founded in 1917 in Leiden. De Stijl consisted of artists and architects. In a more narrow sense, the term ''De Stijl'' is used to refer to a body ...
, surrealism, abstract expressionism, color field, pop art,
minimal art Minimalism describes movements in various forms of art and design, especially visual art and music, where the work is set out to expose the essence, essentials or identity of a subject through eliminating all non-essential forms, features or co ...
,
lyrical abstraction Lyrical abstraction is either of two related but distinct trends in Post-war Modernist painting: ''European Abstraction Lyrique'' born in Paris, the French art critic Jean José Marchand being credited with coining its name in 1947, considered ...
, and
conceptual art Conceptual art, also referred to as conceptualism, is art in which the concept(s) or idea(s) involved in the work take precedence over traditional aesthetic, technical, and material concerns. Some works of conceptual art, sometimes called insta ...
. * The modern art movement revolutionized art and culture and set the stage for both
Modernism Modernism is both a philosophy, philosophical and arts movement that arose from broad transformations in Western world, Western society during the late 19th and early 20th centuries. The movement reflected a desire for the creation of new fo ...
and its counterpart
postmodern art Postmodern art is a body of art movements that sought to contradict some aspects of modernism or some aspects that emerged or developed in its aftermath. In general, movements such as intermedia, installation art, conceptual art and multimedia, ...
as well as other
contemporary art Contemporary art is the art of today, produced in the second half of the 20th century or in the 21st century. Contemporary artists work in a globally influenced, culturally diverse, and technologically advancing world. Their art is a dynamic co ...
practices. * Art Nouveau began as a form of architecture and design but fell out of fashion after World War I. The style was dynamic and inventive but unsuited to the depression of the Great War. * In Europe,
modern architecture Modern architecture, or modernist architecture, was an architectural movement or architectural style based upon new and innovative technologies of construction, particularly the use of glass, steel, and reinforced concrete; the idea that for ...
departed from the decorated styles of the
Victorian era In the history of the United Kingdom and the British Empire, the Victorian era was the period of Queen Victoria's reign, from 20 June 1837 until her death on 22 January 1901. The era followed the Georgian period and preceded the Edwardia ...
. Streamlined forms inspired by machines became commonplace, enabled by developments in
building materials Building material is material used for construction. Many naturally occurring substances, such as clay, rocks, sand, wood, and even twigs and leaves, have been used to construct buildings. Apart from naturally occurring materials, many man- ...
and technologies. Before World War II, many European architects moved to the United States, where modern architecture continued to develop. * The automobile increased the mobility of people in the Western countries in the early-to-mid-century, and in many other places by the end of the 20th century. City design throughout most of the West became focused on transport via car.


Sport

* The popularity of sport increased considerably—both as an activity for all, and as entertainment, particularly on television. * The modern
Olympic Games The modern Olympic Games or Olympics (french: link=no, Jeux olympiques) are the leading international sporting events featuring summer and winter sports competitions in which thousands of athletes from around the world participate in a vari ...
, first held in 1896, grew to include tens of thousands of athletes in dozens of sports. * The
FIFA World Cup The FIFA World Cup, often simply called the World Cup, is an international association football competition contested by the senior men's national teams of the members of the ' ( FIFA), the sport's global governing body. The tournament ha ...
was first held in 1930, and was held every four years after World War II.


Science


Mathematics

Multiple new fields of mathematics were developed in the 20th century. In the first part of the 20th century, measure theory,
functional analysis Functional analysis is a branch of mathematical analysis, the core of which is formed by the study of vector spaces endowed with some kind of limit-related structure (e.g. inner product, norm, topology, etc.) and the linear functions defined o ...
, and
topology In mathematics, topology (from the Greek words , and ) is concerned with the properties of a geometric object that are preserved under continuous deformations, such as stretching, twisting, crumpling, and bending; that is, without closing ...
were established, and significant developments were made in fields such as
abstract algebra In mathematics, more specifically algebra, abstract algebra or modern algebra is the study of algebraic structures. Algebraic structures include group (mathematics), groups, ring (mathematics), rings, field (mathematics), fields, module (mathe ...
and
probability Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speakin ...
. The development of
set theory Set theory is the branch of mathematical logic that studies sets, which can be informally described as collections of objects. Although objects of any kind can be collected into a set, set theory, as a branch of mathematics, is mostly conce ...
and
formal logic Logic is the study of correct reasoning. It includes both formal and informal logic. Formal logic is the science of deductively valid inferences or of logical truths. It is a formal science investigating how conclusions follow from premis ...
led to Gödel's incompleteness theorems. Later in the 20th century, the development of computers led to the establishment of a
theory of computation In theoretical computer science and mathematics, the theory of computation is the branch that deals with what problems can be solved on a model of computation, using an algorithm, how algorithmic efficiency, efficiently they can be solved or t ...
. Computationally-intense results include the study of fractals and a proof of the four color theorem in 1976.


Physics

* New areas of
physics Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which r ...
, like
special relativity In physics, the special theory of relativity, or special relativity for short, is a scientific theory regarding the relationship between space and time. In Albert Einstein's original treatment, the theory is based on two postulates: # The laws ...
,
general relativity General relativity, also known as the general theory of relativity and Einstein's theory of gravity, is the geometric theory of gravitation published by Albert Einstein in 1915 and is the current description of gravitation in modern physics ...
, and
quantum mechanics Quantum mechanics is a fundamental theory in physics that provides a description of the physical properties of nature at the scale of atoms and subatomic particles. It is the foundation of all quantum physics including quantum chemistr ...
, were developed during the first half of the century. In the process, the internal structure of
atom Every atom is composed of a nucleus and one or more electrons bound to the nucleus. The nucleus is made of one or more protons and a number of neutrons. Only the most common variety of hydrogen has no neutrons. Every solid, liquid, gas, ...
s came to be clearly understood, followed by the discovery of
elementary particle In particle physics, an elementary particle or fundamental particle is a subatomic particle that is not composed of other particles. Particles currently thought to be elementary include electrons, the fundamental fermions ( quarks, leptons, a ...
s. * It was found that all the known forces can be traced to only four
fundamental interaction In physics, the fundamental interactions, also known as fundamental forces, are the interactions that do not appear to be reducible to more basic interactions. There are four fundamental interactions known to exist: the gravitational and electro ...
s. It was discovered further that two forces,
electromagnetism In physics, electromagnetism is an interaction that occurs between particles with electric charge. It is the second-strongest of the four fundamental interactions, after the strong force, and it is the dominant force in the interactions of ...
and
weak interaction In nuclear physics and particle physics, the weak interaction, which is also often called the weak force or weak nuclear force, is one of the four known fundamental interactions, with the others being electromagnetism, the strong interaction ...
, can be merged in the
electroweak interaction In particle physics, the electroweak interaction or electroweak force is the unified description of two of the four known fundamental interactions of nature: electromagnetism and the weak interaction. Although these two forces appear very differe ...
, leaving only three different fundamental interactions. * Discovery of
nuclear reaction In nuclear physics and nuclear chemistry, a nuclear reaction is a process in which two nuclei, or a nucleus and an external subatomic particle, collide to produce one or more new nuclides. Thus, a nuclear reaction must cause a transformatio ...
s, in particular
nuclear fusion Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles ( neutrons or protons). The difference in mass between the reactants and products is manife ...
, finally revealed the source of solar energy. * Radiocarbon dating was invented, and became a powerful technique for determining the age of prehistoric animals and plants as well as historical objects.


Astronomy

* A much better understanding of the evolution of the
universe The universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy. The Big Bang theory is the prevailing cosmological description of the development of the universe. ...
was achieved, its age (about 13.8 billion years) was determined, and the Big Bang theory on its origin was proposed and generally accepted. * The age of the
Solar System The Solar System Capitalization of the name varies. The International Astronomical Union, the authoritative body regarding astronomical nomenclature, specifies capitalizing the names of all individual astronomical objects but uses mixed "Solar ...
, including Earth, was determined, and it turned out to be much older than believed earlier: more than 4 billion years, rather than the 20 million years suggested by
Lord Kelvin William Thomson, 1st Baron Kelvin, (26 June 182417 December 1907) was a British mathematician, mathematical physicist and engineer born in Belfast. Professor of Natural Philosophy at the University of Glasgow for 53 years, he did important ...
in 1862. * The planets of the Solar System and their moons were closely observed via numerous
space probe A space probe is an artificial satellite that travels through space to collect scientific data. A space probe may orbit Earth; approach the Moon; travel through interplanetary space; flyby, orbit, or land or fly on other planetary bodies; or ...
s.
Pluto Pluto (minor-planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of bodies beyond the orbit of Neptune. It is the ninth-largest and tenth-most-massive known object to directly orbit the Sun. It is the largest ...
was discovered in 1930 on the edge of the solar system, although in the early 21st century, it was reclassified as a
dwarf planet A dwarf planet is a small planetary-mass object that is in direct orbit of the Sun, smaller than any of the eight classical planets but still a world in its own right. The prototypical dwarf planet is Pluto. The interest of dwarf planets to ...
instead of a planet proper, leaving eight planets. * No trace of life was discovered on any of the other planets orbiting the Sun (or elsewhere in the universe), although it remained undetermined whether some forms of primitive life might exist, or might have existed, somewhere in the Solar System.
Extrasolar planets An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not recognized as such. The first confirmation of detection occurred in 1992. A different planet, init ...
were observed for the first time.


Agriculture

*
Norman Borlaug Norman Ernest Borlaug (; March 25, 1914September 12, 2009) was an American agronomist who led initiatives worldwide that contributed to the extensive increases in agricultural production termed the Green Revolution. Borlaug was awarded multiple ...
fathered the
Green Revolution The Green Revolution, also known as the Third Agricultural Revolution, was a period of technology transfer initiatives that saw greatly increased crop yields and agricultural production. These changes in agriculture began in developed countrie ...
, the set of research
technology transfer Technology transfer (TT), also called transfer of technology (TOT), is the process of transferring (disseminating) technology from the person or organization that owns or holds it to another person or organization, in an attempt to transform invent ...
initiatives occurring between 1950 and the late 1960s that increased agricultural production in parts of the world, beginning most markedly in the late 1960s, and is often credited with saving over a billion people worldwide from starvation.


Biology

*
Genetics Genetics is the study of genes, genetic variation, and heredity in organisms.Hartl D, Jones E (2005) It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar wor ...
was unanimously accepted and significantly developed. The structure of DNA was determined in 1953 by James Watson, Francis Crick, Rosalind Franklin and Maurice Wilkins, following by developing techniques which allow to read DNA sequences and culminating in starting the Human Genome Project (not finished in the 20th century) and cloning the first mammal in 1996. * The role of
sexual reproduction Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete ( haploid reproductive cells, such as a sperm or egg cell) with a single set of chromosomes combines with another gamete to produce a zygote th ...
in evolution was understood, and bacterial conjugation was discovered. * The convergence of various sciences for the formulation of the modern evolutionary synthesis (produced between 1936 and 1947), providing a widely accepted account of
evolution Evolution is change in the heritable characteristics of biological populations over successive generations. These characteristics are the expressions of genes, which are passed on from parent to offspring during reproduction. Variation ...
.


Medicine

*
Placebo A placebo ( ) is a substance or treatment which is designed to have no therapeutic value. Common placebos include inert tablets (like sugar pills), inert injections (like saline), sham surgery, and other procedures. In general, placebos can af ...
- controlled,
randomized In common usage, randomness is the apparent or actual lack of pattern or predictability in events. A random sequence of events, symbols or steps often has no order and does not follow an intelligible pattern or combination. Individual ra ...
, blinded
clinical trial Clinical trials are prospective biomedical or behavioral research studies on human participants designed to answer specific questions about biomedical or behavioral interventions, including new treatments (such as novel vaccines, drugs, diet ...
s became a powerful tool for testing new medicines. *
Antibiotics An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the treatment and prevention o ...
drastically reduced mortality from bacterial diseases. * A
vaccine A vaccine is a biological preparation that provides active acquired immunity to a particular infectious or malignant disease. The safety and effectiveness of vaccines has been widely studied and verified.
was developed for
polio Poliomyelitis, commonly shortened to polio, is an infectious disease caused by the poliovirus. Approximately 70% of cases are asymptomatic; mild symptoms which can occur include sore throat and fever; in a proportion of cases more severe s ...
, ending a worldwide epidemic. Effective vaccines were also developed for a number of other serious infectious diseases, including influenza, diphtheria, pertussis (whooping cough), tetanus, measles, mumps, rubella (German measles), chickenpox,
hepatitis A Hepatitis A is an infectious disease of the liver caused by ''Hepatovirus A'' (HAV); it is a type of viral hepatitis. Many cases have few or no symptoms, especially in the young. The time between infection and symptoms, in those who develop them ...
, and
hepatitis B Hepatitis B is an infectious disease caused by the '' Hepatitis B virus'' (HBV) that affects the liver; it is a type of viral hepatitis. It can cause both acute and chronic infection. Many people have no symptoms during an initial infection. ...
. *
Epidemiology Epidemiology is the study and analysis of the distribution (who, when, and where), patterns and determinants of health and disease conditions in a defined population. It is a cornerstone of public health, and shapes policy decisions and evide ...
and
vaccination Vaccination is the administration of a vaccine to help the immune system develop immunity from a disease. Vaccines contain a microorganism or virus in a weakened, live or killed state, or proteins or toxins from the organism. In stimulating ...
led to the eradication of the
smallpox Smallpox was an infectious disease caused by variola virus (often called smallpox virus) which belongs to the genus Orthopoxvirus. The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (WHO) c ...
virus in humans. *
X-ray An X-ray, or, much less commonly, X-radiation, is a penetrating form of high-energy electromagnetic radiation. Most X-rays have a wavelength ranging from 10  picometers to 10  nanometers, corresponding to frequencies in the range 30&nb ...
s became a powerful diagnostic tool for a wide spectrum of diseases, from bone fractures to cancer. In the 1960s, computerized tomography was invented. Other important diagnostic tools developed were
sonography Medical ultrasound includes diagnostic techniques (mainly imaging techniques) using ultrasound, as well as therapeutic applications of ultrasound. In diagnosis, it is used to create an image of internal body structures such as tendons, musc ...
and magnetic resonance imaging. * Development of
vitamins A vitamin is an organic molecule (or a set of molecules closely related chemically, i.e. vitamers) that is an essential micronutrient that an organism needs in small quantities for the proper functioning of its metabolism. Essential nutrien ...
virtually eliminated
scurvy Scurvy is a disease resulting from a lack of vitamin C (ascorbic acid). Early symptoms of deficiency include weakness, feeling tired and sore arms and legs. Without treatment, decreased red blood cells, gum disease, changes to hair, and bleeding ...
and other vitamin-deficiency diseases from industrialized societies. * New psychiatric drugs were developed. These include
antipsychotic Antipsychotics, also known as neuroleptics, are a class of psychotropic medication primarily used to manage psychosis (including delusions, hallucinations, paranoia or disordered thought), principally in schizophrenia but also in a range of ...
s for treating
hallucination A hallucination is a perception in the absence of an external stimulus that has the qualities of a real perception. Hallucinations are vivid, substantial, and are perceived to be located in external objective space. Hallucination is a combinati ...
s and
delusion A delusion is a false fixed belief that is not amenable to change in light of conflicting evidence. As a pathology, it is distinct from a belief based on false or incomplete information, confabulation, dogma, illusion, hallucination, or som ...
s, and antidepressants for treating depression. * The role of
tobacco smoking Tobacco smoking is the practice of burning tobacco and ingesting the resulting smoke. The smoke may be inhaled, as is done with cigarettes, or simply released from the mouth, as is generally done with pipes and cigars. The practice is believed ...
in the causation of cancer and other diseases was proven during the 1950s (see British Doctors Study). * New methods for cancer treatment, including
chemotherapy Chemotherapy (often abbreviated to chemo and sometimes CTX or CTx) is a type of cancer treatment that uses one or more anti-cancer drugs ( chemotherapeutic agents or alkylating agents) as part of a standardized chemotherapy regimen. Chemothe ...
,
radiation therapy Radiation therapy or radiotherapy, often abbreviated RT, RTx, or XRT, is a therapy using ionizing radiation, generally provided as part of cancer treatment to control or kill malignant cells and normally delivered by a linear accelerator. Radi ...
, and
immunotherapy Immunotherapy or biological therapy is the treatment of disease by activating or suppressing the immune system. Immunotherapies designed to elicit or amplify an immune response are classified as ''activation immunotherapies,'' while immunotherap ...
, were developed. As a result, cancer could often be cured or placed in remission. * The development of
blood typing Blood compatibility testing is conducted in a medical laboratory to identify potential incompatibilities between blood group systems in blood transfusion. It is also used to diagnose and prevent some complications of pregnancy that can occur whe ...
and
blood bank A blood bank is a center where blood gathered as a result of blood donation is stored and preserved for later use in blood transfusion. The term "blood bank" typically refers to a department of a hospital usually within a Clinical Pathology laborat ...
ing made
blood transfusion Blood transfusion is the process of transferring blood products into a person's circulation intravenously. Transfusions are used for various medical conditions to replace lost components of the blood. Early transfusions used whole blood, but mo ...
safe and widely available. * The invention and development of immunosuppressive drugs and tissue typing made organ and tissue transplantation a clinical reality. * New methods for
heart surgery Cardiac surgery, or cardiovascular surgery, is surgery on the heart or great vessels performed by cardiac surgeons. It is often used to treat complications of ischemic heart disease (for example, with coronary artery bypass grafting); to corr ...
were developed, including pacemakers and
artificial heart An artificial heart is a device that replaces the heart. Artificial hearts are typically used to bridge the time to heart transplantation, or to permanently replace the heart in the case that a heart transplant (from a deceased human or, exper ...
s. *
Cocaine Cocaine (from , from , ultimately from Quechua: ''kúka'') is a central nervous system (CNS) stimulant mainly used recreationally for its euphoric effects. It is primarily obtained from the leaves of two Coca species native to South Ameri ...
and heroin were widely illegalized after being found to be addictive and destructive.
Psychoactive drug A psychoactive drug, psychopharmaceutical, psychoactive agent or psychotropic drug is a chemical substance, that changes functions of the nervous system, and results in alterations in perception, mood, consciousness, cognition or behavior. ...
s such as
LSD Lysergic acid diethylamide (LSD), also known colloquially as acid, is a potent psychedelic drug. Effects typically include intensified thoughts, emotions, and sensory perception. At sufficiently high dosages LSD manifests primarily mental, vi ...
and
MDMA 3,4-Methylenedioxymethamphetamine (MDMA), commonly seen in tablet form (ecstasy) and crystal form (molly or mandy), is a potent empathogen–entactogen with stimulant properties primarily used for recreational purposes. The desire ...
were discovered and subsequently prohibited in many countries.
Prohibition of drugs The prohibition of drugs through sumptuary legislation or religious law is a common means of attempting to prevent the recreational use of certain intoxicating substances. While some drugs are illegal to possess, many governments regulate the ...
caused a growth in the black market drug industry, and expanded enforcement led to a larger prison population in some countries. * Contraceptive drugs were developed, which reduced population growth rates in industrialized countries, as well as decreased the taboo of
premarital sex Premarital sex is sexual activity which is practiced by people before they are married. Premarital sex is considered a sin by a number of religions and also considered a moral issue which is taboo in many cultures. Since the Sexual Revolutio ...
throughout many western countries. * The development of medical insulin during the 1920s helped raise the life expectancy of
diabetics Diabetes, also known as diabetes mellitus, is a group of metabolic disorders characterized by a high blood sugar level (hyperglycemia) over a prolonged period of time. Symptoms often include frequent urination, increased thirst and increased a ...
to three times of what it had been earlier. * Vaccines, hygiene and clean water improved health and decreased mortality rates, especially among infants and the young.


Notable diseases

* An influenza pandemic,
Spanish Flu The 1918–1920 influenza pandemic, commonly known by the misnomer Spanish flu or as the Great Influenza epidemic, was an exceptionally deadly global influenza pandemic caused by the H1N1 influenza A virus. The earliest documented case wa ...
, killed anywhere from 17 to 100 million people between 1918 and 1919. * A new viral disease, called the
Human Immunodeficiency Virus The human immunodeficiency viruses (HIV) are two species of ''Lentivirus'' (a subgroup of retrovirus) that infect humans. Over time, they cause acquired immunodeficiency syndrome (AIDS), a condition in which progressive failure of the immun ...
, or HIV, arose in Africa and subsequently killed millions of people throughout the world. HIV leads to a syndrome called
Acquired Immunodeficiency Syndrome Human immunodeficiency virus infection and acquired immunodeficiency syndrome (HIV/AIDS) is a spectrum of conditions caused by infection with the human immunodeficiency virus (HIV), a retrovirus. Following initial infection an individual ma ...
, or AIDS. Treatments for HIV remained inaccessible to many people living with AIDS and HIV in
developing countries A developing country is a sovereign state with a lesser developed industrial base and a lower Human Development Index (HDI) relative to other countries. However, this definition is not universally agreed upon. There is also no clear agreem ...
, and a cure has yet to be discovered. * Because of increased life spans, the
prevalence In epidemiology, prevalence is the proportion of a particular population found to be affected by a medical condition (typically a disease or a risk factor such as smoking or seatbelt use) at a specific time. It is derived by comparing the number o ...
of cancer, Alzheimer's disease,
Parkinson's disease Parkinson's disease (PD), or simply Parkinson's, is a long-term degenerative disorder of the central nervous system that mainly affects the motor system. The symptoms usually emerge slowly, and as the disease worsens, non-motor symptoms becom ...
, and other diseases of old age increased slightly. * Changes in food production, along with
sedentary lifestyle Sedentary lifestyle is a Lifestyle (social sciences), lifestyle type, in which one is physically inactive and does little or no physical movement and or exercise. A person living a sedentary lifestyle is often sitting or lying down while enga ...
s due to labor-saving devices and the increase in home entertainment, contributed to an "epidemic" of
obesity Obesity is a medical condition, sometimes considered a disease, in which excess body fat has accumulated to such an extent that it may negatively affect health. People are classified as obese when their body mass index (BMI)—a person's ...
, at first in the rich countries, but by the end of the 20th century spreading to the developing world.


Energy and the environment

* Fossil fuels and
nuclear power Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced ...
were the dominant forms of energy sources. * Widespread use of petroleum in industry—both as a chemical precursor to plastics and as a fuel for the automobile and airplane—led to the geopolitical importance of petroleum resources. The Middle East, home to many of the world's oil deposits, became a center of geopolitical and military tension throughout the latter half of the century. (For example, oil was a factor in Japan's decision to go to war against the United States in 1941, and the oil cartel, OPEC, used an oil embargo of sorts in the wake of the
Yom Kippur War The Yom Kippur War, also known as the Ramadan War, the October War, the 1973 Arab–Israeli War, or the Fourth Arab–Israeli War, was an armed conflict fought from October 6 to 25, 1973 between Israel and a coalition of Arab states led by E ...
in the 1970s). * The increase in fossil fuel consumption also fueled a major scientific controversy over its effect on air pollution,
global warming In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to E ...
, and global
climate change In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to ...
. * Pesticides, herbicides and other
toxic Toxicity is the degree to which a chemical substance or a particular mixture of substances can damage an organism. Toxicity can refer to the effect on a whole organism, such as an animal, bacterium, or plant, as well as the effect on a subs ...
chemicals A chemical substance is a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., wit ...
accumulated in the environment, including in the bodies of humans and other animals. * Population growth and worldwide
deforestation Deforestation or forest clearance is the removal of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. The most concentrated ...
diminished the quality of the environment. * In the last third of the century, concern about humankind's impact on the Earth's environment made environmentalism popular. In many countries, especially in Europe, the movement was channeled into politics through Green parties. Increasing awareness of
global warming In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to E ...
began in the 1980s, commencing decades of social and political debate.


Engineering and technology

One of the prominent traits of the 20th century was the dramatic growth of technology. Organized research and practice of science led to advancement in the fields of communication, electronics, engineering, travel, medicine, and war. * Basic
home appliance A home appliance, also referred to as a domestic appliance, an electric appliance or a household appliance, is a machine which assists in household functions such as cooking, cleaning and food preservation. Appliances are divided into three ...
s including
washing machine A washing machine (laundry machine, clothes washer, washer, or simply wash) is a home appliance used to wash laundry. The term is mostly applied to machines that use water as opposed to dry cleaning (which uses alternative cleaning fluids and ...
s, clothes dryers, furnaces,
exercise machine An exercise machine is any machine used for physical exercise. These range from simple spring-like devices to computerized electromechanical devices to recirculating-stream swimming pools. Most exercise machines incorporate an ergometer. An ergo ...
s,
dishwashers A dishwasher is a machine that is used to clean dishware, cookware, and cutlery automatically. Unlike manual dishwashing, which relies heavily on physical scrubbing to remove soiling, the mechanical dishwasher cleans by spraying hot water, t ...
, refrigerators, freezers, electric stoves and
vacuum cleaner A vacuum cleaner, also known simply as a vacuum or a hoover, is a device that causes suction in order to remove dirt from floors, upholstery, draperies, and other surfaces. It is generally electrically driven. The dirt is collected by either a ...
s became popular from the 1920s through the 1950s. Radios were popularized as a form of entertainment during the 1920s, followed by television during the 1950s. * The first airplane, the ''
Wright Flyer The ''Wright Flyer'' (also known as the ''Kitty Hawk'', ''Flyer'' I or the 1903 ''Flyer'') made the first sustained flight by a manned heavier-than-air powered and controlled aircraft—an airplane—on December 17, 1903. Invented and flown b ...
'', was flown in 1903. With the engineering of the faster jet engine in the 1940s, mass
air travel Air travel is a form of travel in vehicles such as airplanes, jet aircraft, helicopters, hot air balloons, blimps, gliders, hang gliders, parachutes, or anything else that can sustain flight.
became commercially viable. * The
assembly line An assembly line is a manufacturing process (often called a ''progressive assembly'') in which parts (usually interchangeable parts) are added as the semi-finished assembly moves from workstation to workstation where the parts are added in se ...
made mass production of the automobile viable. By the end of the 20th century, billions of people had automobiles for personal transportation. The combination of the automobile,
motor boat A motorboat, speedboat or powerboat is a boat that is exclusively powered by an engine. Some motorboats are fitted with inboard engines, others have an outboard motor installed on the rear, containing the internal combustion engine, the gea ...
s and air travel allowed for unprecedented personal mobility. In western nations, motor vehicle accidents became the greatest cause of death for young people. However, expansion of
divided highway A dual carriageway ( BE) or divided highway ( AE) is a class of highway with carriageways for traffic travelling in opposite directions separated by a central reservation (BrE) or median (AmE). Roads with two or more carriageways which are ...
s reduced the death rate. * The triode tube was invented. *Air conditioning of buildings became common * New materials, most notably stainless steel,
Velcro Velcro, officially known as Velcro IP Holdings LLC and trading as Velcro Companies, is a British privately held company, founded by Swiss electrical engineer George de Mestral in the 1950s. It is the original manufacturer of hook-and-loop fast ...
, silicone,
teflon Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications. It is one of the best-known and widely applied PFAS. The commonly known brand name of PTFE-based composition is Teflon by Chemo ...
, and plastics such as polystyrene, PVC,
polyethylene Polyethylene or polythene (abbreviated PE; IUPAC name polyethene or poly(methylene)) is the most commonly produced plastic. It is a polymer, primarily used for packaging ( plastic bags, plastic films, geomembranes and containers including b ...
, and nylon came into widespread use for many various applications. These materials typically have tremendous performance gains in strength, temperature, chemical resistance, or mechanical properties over those known prior to the 20th century. * Aluminum became an inexpensive metal and became second only to iron in use. * Thousands of
chemical A chemical substance is a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., w ...
s were developed for industrial processing and home use. * Digital computers came into use


Space exploration

* The
Space Race The Space Race was a 20th-century competition between two Cold War rivals, the United States and the Soviet Union, to achieve superior spaceflight capability. It had its origins in the ballistic missile-based nuclear arms race between the t ...
between the United States and the
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
gave a peaceful outlet to the political and military tensions of the Cold War, leading to the first human spaceflight with the Soviet Union's
Vostok 1 Vostok 1 (russian: link=no, Восток, ''East'' or ''Orient'' 1) was the first spaceflight of the Vostok programme and the first human orbital spaceflight in history. The Vostok 3KA space capsule was launched from Baikonur Cosmodrome on Apr ...
mission in 1961, and man's first landing on another world—the
Moon The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of ...
—with America's
Apollo 11 Apollo 11 (July 16–24, 1969) was the American spaceflight that first landed humans on the Moon. Commander Neil Armstrong and lunar module pilot Buzz Aldrin landed the Apollo Lunar Module ''Eagle'' on July 20, 1969, at 20:17 UTC, ...
mission in 1969. Later, the first space station was launched by the
Soviet space program The Soviet space program (russian: Космическая программа СССР, Kosmicheskaya programma SSSR) was the national space program of the former Union of Soviet Socialist Republics (USSR), active from 1955 until the dissoluti ...
. The United States developed the first reusable spacecraft system with the
Space Shuttle program The Space Shuttle program was the fourth human spaceflight program carried out by the U.S. National Aeronautics and Space Administration (NASA), which accomplished routine transportation for Earth-to-orbit crew and cargo from 1981 to 2011. I ...
, first launched in 1981. As the century ended, a permanent manned presence in space was being founded with the ongoing construction of the
International Space Station The International Space Station (ISS) is the largest modular space station currently in low Earth orbit. It is a multinational collaborative project involving five participating space agencies: NASA (United States), Roscosmos (Russia), JAXA ( ...
. * In addition to human spaceflight, unmanned space probes became a practical and relatively inexpensive form of exploration. The first orbiting space probe, Sputnik 1, was launched by the
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
in 1957. Over time, a massive system of artificial satellites was placed into orbit around Earth. These satellites greatly advanced navigation, communications, military intelligence, geology, climate, and numerous other fields. Also, by the end of the 20th century, unmanned probes had visited or flew by the Moon, Mercury,
Venus Venus is the second planet from the Sun. It is sometimes called Earth's "sister" or "twin" planet as it is almost as large and has a similar composition. As an interior planet to Earth, Venus (like Mercury) appears in Earth's sky never f ...
,
Mars Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, only being larger than Mercury. In the English language, Mars is named for the Roman god of war. Mars is a terrestrial planet with a thin at ...
,
Jupiter Jupiter is the fifth planet from the Sun and the largest in the Solar System. It is a gas giant with a mass more than two and a half times that of all the other planets in the Solar System combined, but slightly less than one-thousandth t ...
, Saturn,
Uranus Uranus is the seventh planet from the Sun. Its name is a reference to the Greek god of the sky, Uranus ( Caelus), who, according to Greek mythology, was the great-grandfather of Ares (Mars), grandfather of Zeus (Jupiter) and father of ...
, Neptune, and various asteroids and comets, with
Voyager 1 ''Voyager 1'' is a space probe launched by NASA on September 5, 1977, as part of the Voyager program to study the outer Solar System and interstellar space beyond the Sun's heliosphere. Launched 16 days after its twin ''Voyager 2'', ''Voya ...
being the farthest man made object from Earth at 23,5 billion kilometers away from Earth as of 6 September 2022, and together with
Voyager 2 ''Voyager 2'' is a space probe launched by NASA on August 20, 1977, to study the outer planets and interstellar space beyond the Sun's heliosphere. As a part of the Voyager program, it was launched 16 days before its twin, '' Voyager 1'', o ...
both carrying The
Voyager Golden Record The Voyager Golden Records are two phonograph records that were included aboard both Voyager spacecraft launched in 1977. The records contain sounds and images selected to portray the diversity of life and culture on Earth, and are intended for ...
containing sounds, music and greetings in 55 languages as well as 116 images of nature, human advancement, space and society. * The
Hubble Space Telescope The Hubble Space Telescope (often referred to as HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the first space telescope, but it is one of the largest and most vers ...
, launched in 1990, greatly expanded our understanding of the Universe and brought brilliant images to TV and computer screens around the world. * The
Global Positioning System The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite sy ...
, a series of satellites that allow land-based receivers to determine their exact location, was developed and deployed.


Religion

* 1900s – A number of related revival movements mark the start of
Pentecostalism Pentecostalism or classical Pentecostalism is a Protestant Charismatic Christian movement
. * 1904 —
Aleister Crowley Aleister Crowley (; born Edward Alexander Crowley; 12 October 1875 – 1 December 1947) was an English occultist, ceremonial magician, poet, painter, novelist, and mountaineer. He founded the religion of Thelema, identifying himself as the pr ...
dictates ''
The Book of the Law ''Liber AL vel Legis'' (), commonly known as ''The Book of the Law'', is the central sacred text of Thelema. Aleister Crowley said that it was dictated to him by a beyond-human being who called himself ' Aiwass'. Rose Edith Kelly, Crowley's ...
'', the foundational text of
Thelema Thelema () is a Western esoteric and occult social or spiritual philosophy and new religious movement founded in the early 1900s by Aleister Crowley (1875–1947), an English writer, mystic, occultist, and ceremonial magician. The word ' ...
. * 1922 – The
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
establishes a doctrine of
state atheism State atheism is the incorporation of positive atheism or non-theism into political regimes. It may also refer to large-scale secularization attempts by governments. It is a form of religion-state relationship that is usually ideologically l ...
. * 1930 —
Wallace Fard Muhammad Wallace Dodd Fard, also known as Wallace Fard Muhammad or Master Fard Muhammad (; reportedly born February 26, – disappeared ), was the founder of the Nation of Islam. He arrived in Detroit in 1930 with an obscure background and several alia ...
founds the Nation of Islam. The Seventh Lambeth Conference allows for the possibility of birth control within Anglicanism, the first example of a modern Christian church supporting such a position. * 1940s —
Wicca Wicca () is a modern Pagan religion. Scholars of religion categorise it as both a new religious movement and as part of the occultist stream of Western esotericism. It was developed in England during the first half of the 20th century and w ...
is formalized by
Gerald Gardner Gerald Brosseau Gardner (13 June 1884 – 12 February 1964), also known by the craft name Scire, was an English Wiccan, as well as an author and an amateur anthropology, anthropologist and archaeology, archaeologist. He was instrumental in bri ...
and
Doreen Valiente Doreen Edith Dominy Valiente (4 January 1922 – 1 September 1999) was an English Wiccan who was responsible for writing much of the early religious liturgy within the tradition of Gardnerian Wicca. An author and poet, she also published five b ...
. * 1950s —
Sayyid Qutb Sayyid 'Ibrāhīm Ḥusayn Quṭb ( or ; , ; ar, سيد قطب إبراهيم حسين ''Sayyid Quṭb''; 9 October 1906 – 29 August 1966), known popularly as Sayyid Qutb ( ar, سيد قطب), was an Egyptian author, educator, Islamic ...
articulates
Qutbism Qutbism ( ar, ٱلْقُطْبِيَّةِ, al-Quṭbīyah) is an Islamist ideology which was developed by Sayyid Qutb, a leading member of the Muslim Brotherhood who was executed by the Egyptian government in 1966. It has been described as adv ...
, a violent variety of Islamism that would later become foundational to
jihadist Jihadism is a neologism which is used in reference to "militant Islamic movements that are perceived as existentially threatening to the West" and "rooted in political Islam."Compare: Appearing earlier in the Pakistani and Indian media, Wes ...
ideology. Maharishi Mahesh Yogi begins to teach
Transcendental Meditation Transcendental Meditation (TM) is a form of silent mantra meditation advocated by the Transcendental Meditation movement. Maharishi Mahesh Yogi created the technique in India in the mid-1950s. Advocates of TM claim that the technique promotes ...
. * 1953 — L. Ron Hubbard founds the Church of Scientology, which has a unique cosmology based on
science fiction Science fiction (sometimes shortened to Sci-Fi or SF) is a genre of speculative fiction which typically deals with imaginative and futuristic concepts such as advanced science and technology, space exploration, time travel, parallel uni ...
and his older system of Dianetics. * 1956 — B. R. Ambedkar launches the Dalit Buddhist movement. * 1960 – The charismatic movement starts within Anglicanism, quickly spreading to other Christian sects. * 1962–65 – The
Second Vatican Council The Second Ecumenical Council of the Vatican, commonly known as the , or , was the 21st ecumenical council of the Roman Catholic Church. The council met in St. Peter's Basilica in Rome for four periods (or sessions), each lasting between 8 and ...
is held, resulting in significant changes in the
Catholic Church The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with 1.3 billion baptized Catholics worldwide . It is among the world's oldest and largest international institutions, and has played a ...
. * 1970s —
New Age New Age is a range of spiritual or religious practices and beliefs which rapidly grew in Western society during the early 1970s. Its highly eclectic and unsystematic structure makes a precise definition difficult. Although many scholars consi ...
beliefs and practices are popularized. * 1979 – In
Shia Islam Shīʿa Islam or Shīʿīsm is the second-largest branch of Islam. It holds that the Islamic prophet Muhammad designated ʿAlī ibn Abī Ṭālib as his successor (''khalīfa'') and the Imam (spiritual and political leader) after him, m ...
, the Islamic Revolution establishes a theocratic state within Iran. * 1988 — Al-Qaeda, a network of Islamic extremists, is founded among Arab members of the Afghan mujahideen. It engages in a number of terror attacks throughout the 1990s, leading up to the
September 11 attacks The September 11 attacks, commonly known as 9/11, were four coordinated suicide terrorist attacks carried out by al-Qaeda against the United States on Tuesday, September 11, 2001. That morning, nineteen terrorists hijacked four commer ...
in 2001. * 1999 —
Falun Gong Falun Gong (, ) or Falun Dafa (; literally, "Dharma Wheel Practice" or "Law Wheel Practice") is a new religious movement.Junker, Andrew. 2019. ''Becoming Activists in Global China: Social Movements in the Chinese Diaspora'', pp. 23–24, 33, 119 ...
, a Chinese
new religious movement A new religious movement (NRM), also known as alternative spirituality or a new religion, is a religious or spiritual group that has modern origins and is peripheral to its society's dominant religious culture. NRMs can be novel in origin or th ...
dating to the early 1990s, begins to be persecuted by the Chinese government.


Economics

* The Great Depression was a worldwide economic slowdown that lasted throughout the early 1930s. * The
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
implemented a series of five-year plans for industrialization and economic development. * Most countries abandoned the
gold standard A gold standard is a monetary system in which the standard economic unit of account is based on a fixed quantity of gold. The gold standard was the basis for the international monetary system from the 1870s to the early 1920s, and from the l ...
for their currency. The Bretton Woods system involved currencies being pegged to the United States dollar; after the system collapsed in 1971 most major currencies had a floating exchange rate.


See also

* 20th-century inventions * Death rates in the 20th century *
Infectious disease in the 20th century The history of medicine is both a study of medicine throughout history as well as a multidisciplinary field of study that seeks to explore and understand medical practices, both past and present, throughout human societies. More than just histo ...
* Modern art * Short twentieth century *
Timelines of modern history The following are timelines of modern history, from the end of the Middle Ages, ,Encyclopedia BritannicaThe Middle-Ages Retrieved October 14, 2020 to the present. General timelines Early modern period *For a timeline of events prior to 1501, ...
*
List of 20th-century women artists This is a partial list of 20th-century women artists, sorted alphabetically by decade of birth. These artists are known for creating artworks that are primarily visual in nature, in traditional media such as painting, sculpture, photography, print ...
* List of notable 20th-century writers * List of 20th-century American writers by birth year * List of battles 1901–2000 *
List of stories set in a future now past This is a list of fictional stories that, when composed, were set in the future, but the future they predicted is now present or past. The list excludes works that were alternate histories, which were composed after the dates they depict, alte ...


References


Sources

*
Climate Change 2013 Working Group 1 website.
* (pb: ) * *


Further reading

* Brower, Daniel R. and Thomas Sanders. ''The World in the Twentieth Century'' (7th Ed, 2013) * CBS News
''People of the century''
Simon and Schuster, 1999. * Grenville, J. A. S. ''A History of the World in the Twentieth Century'' (1994)
online free
* Hallock, Stephanie A. ''The World in the 20th Century: A Thematic Approach'' (2012) * Langer, William. ''An Encyclopedia of World History'' (5th ed. 1973); highly detailed outline of event
online free
* Morris, Richard B. and Graham W. Irwin, eds. ''Harper Encyclopedia of the Modern World: A Concise Reference History from 1760 to the Present'' (1970
online
* Pindyck, Robert S. "What we know and don’t know about climate change, and implications for policy." ''Environmental and Energy Policy and the Economy'' 2.1 (2021): 4–43
online
* Pollard, Sidney, ed. ''Wealth and Poverty: an Economic History of the 20th Century'' (1990), 260 pp; global perspectiv
online free
* Stearns, Peter, ed. ''The Encyclopedia of World History'' (2001) *


External links


The 20th Century Research Project


* ttp://www.bl.uk/20th-century-literature ''Discovering Literature: 20th century''at the British Library {{DEFAULTSORT:20th century 2nd millennium Centuries Late modern period