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A civilization (or civilisation) is any complex society characterized by the development of a state,
social stratification Social stratification refers to a society's categorization of its people into groups based on socioeconomic factors like wealth, income, race, education, ethnicity, gender, occupation, social status, or derived power (social and politi ...
,
urbanization Urbanization (or urbanisation) refers to the population shift from rural to urban areas, the corresponding decrease in the proportion of people living in rural areas, and the ways in which societies adapt to this change. It is predominantly th ...
, and
symbolic Symbolic may refer to: * Symbol, something that represents an idea, a process, or a physical entity Mathematics, logic, and computing * Symbolic computation, a scientific area concerned with computing with mathematical formulas * Symbolic dynam ...
systems of communication beyond natural spoken language (namely, a
writing system A writing system is a method of visually representing verbal communication, based on a script and a set of rules regulating its use. While both writing and speech are useful in conveying messages, writing differs in also being a reliable fo ...
). Civilizations are intimately associated with additional characteristics such as
centralization Centralisation or centralization (see spelling differences) is the process by which the activities of an organisation, particularly those regarding planning and decision-making, framing strategy and policies become concentrated within a particu ...
, the
domestication Domestication is a sustained multi-generational relationship in which humans assume a significant degree of control over the reproduction and care of another group of organisms to secure a more predictable supply of resources from that group. ...
of plant and animal species (including humans), specialization of labour, culturally-ingrained ideologies of progress,
monument A monument is a type of structure that was explicitly created to commemorate a person or event, or which has become relevant to a social group as a part of their remembrance of historic times or cultural heritage, due to its artistic, hist ...
al
architecture Architecture is the art and technique of designing and building, as distinguished from the skills associated with construction. It is both the process and the product of sketching, conceiving, planning, designing, and constructing buildings ...
,
taxation A tax is a compulsory financial charge or some other type of levy imposed on a taxpayer (an individual or legal entity) by a governmental organization in order to fund government spending and various public expenditures (regional, local, o ...
, societal dependence upon
farming Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled peopl ...
, and
expansionism Expansionism refers to states obtaining greater territory through military empire-building or colonialism. In the classical age of conquest moral justification for territorial expansion at the direct expense of another established polity (who of ...
. Historically, a civilization has often been understood as a larger and "more advanced"
culture Culture () is an umbrella term which encompasses the social behavior, institutions, and norms found in human societies, as well as the knowledge, beliefs, arts, laws, customs, capabilities, and habits of the individuals in these groups ...
, in implied contrast to smaller, supposedly less advanced cultures. In this broad sense, a civilization contrasts with non-centralized tribal societies, including the cultures of nomadic pastoralists,
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 pa ...
societies or hunter-gatherers; however, sometimes it also contrasts with the cultures found within civilizations themselves. Civilizations are organized densely-populated settlements divided into
hierarchical A hierarchy (from Greek: , from , 'president of sacred rites') is an arrangement of items (objects, names, values, categories, etc.) that are represented as being "above", "below", or "at the same level as" one another. Hierarchy is an important ...
social class A social class is a grouping of people into a set of hierarchical social categories, the most common being the upper, middle and lower classes. Membership in a social class can for example be dependent on education, wealth, occupation, inc ...
es with a ruling elite and subordinate urban and rural populations, which engage in
intensive agriculture Intensive agriculture, also known as intensive farming (as opposed to extensive farming), conventional, or industrial agriculture, is a type of agriculture, both of crop plants and of animals, with higher levels of input and output per unit of ag ...
,
mining Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic ...
, small-scale manufacture and
trade Trade involves the transfer of goods and services from one person or entity to another, often in exchange for money. Economists refer to a system or network that allows trade as a market. An early form of trade, barter, saw the direct excha ...
. Civilization concentrates power, extending human control over the rest of nature, including over other human beings. Civilization, as its etymology suggests, is a concept originally associated with
town A town is a human settlement. Towns are generally larger than villages and smaller than cities, though the criteria to distinguish between them vary considerably in different parts of the world. Origin and use The word "town" shares an ori ...
s and cities. The earliest emergence of civilizations is generally connected with the final stages of the
Neolithic Revolution The Neolithic Revolution, or the (First) Agricultural Revolution, was the wide-scale transition of many human cultures during the Neolithic period from a lifestyle of hunting and gathering to one of agriculture and settlement, making an incre ...
in
West Asia Western Asia, West Asia, or Southwest Asia, is the westernmost subregion of the larger geographical region of Asia, as defined by some academics, UN bodies and other institutions. It is almost entirely a part of the Middle East, and includes Ana ...
, culminating in the relatively rapid process of urban revolution and state-formation, a political development associated with the appearance of a governing elite.


History of the concept

The English word ''civilization'' comes from the 16th-century French ''civilisé'' ("civilized"), from Latin ''civilis'' ("civil"), related to ''civis'' ("citizen") and ''civitas'' ("city"). The fundamental treatise is
Norbert Elias Norbert Elias (; 22 June 1897 – 1 August 1990) was a German sociologist who later became a British citizen. He is especially famous for his theory of civilizing/decivilizing processes. Biography Elias was born on 22 June 1897 in Bresla ...
's ''
The Civilizing Process ''The Civilizing Process'' is a book by German sociologist Norbert Elias. It is an influential work in sociology and Elias' most important work. It was first published in Basel, Switzerland in two volumes in 1939 in German as ''Über den Prozeß ...
'' (1939), which traces social
mores Mores (, sometimes ; , plural form of singular , meaning "manner, custom, usage, or habit") are social norms that are widely observed within a particular society or culture. Mores determine what is considered morally acceptable or unacceptable ...
from medieval courtly society to the Early Modern period.It remains the most influential sociological study of the topic, spawning its own body of secondary literature. Notably,
Hans Peter Duerr Hans Peter Duerr (born 6 June 1943) is a German anthropologist and author of ten books on anthropology. Duerr studied at both the University of Vienna and the University of Heidelberg, eventually gaining his doctorate in 1971 with a dissertatio ...
attacked it in a major work (3,500 pages in five volumes, published 1988–2002). Elias, at the time a nonagenarian, was still able to respond to the criticism the year before his death. In 2002, Duerr was himself criticized by Michael Hinz's ''Der Zivilisationsprozeß: Mythos oder Realität'' (2002), saying that his criticism amounted to hateful defamation of Elias, through excessive standards of
political correctness ''Political correctness'' (adjectivally: ''politically correct''; commonly abbreviated ''PC'') is a term used to describe language, policies, or measures that are intended to avoid offense or disadvantage to members of particular groups in socie ...
. ''
Der Spiegel ''Der Spiegel'' (, lit. ''"The Mirror"'') is a German weekly news magazine published in Hamburg. With a weekly circulation of 695,100 copies, it was the largest such publication in Europe in 2011. It was founded in 1947 by John Seymour Chaloner ...
'
40/2002
In ''The Philosophy of Civilization'' (1923),
Albert Schweitzer Ludwig Philipp Albert Schweitzer (; 14 January 1875 – 4 September 1965) was an Alsatian-German/French polymath. He was a theologian, organist, musicologist, writer, humanitarian, philosopher, and physician. A Lutheran minister, Schwei ...
outlines two opinions: one purely
material Material is a substance or mixture of substances that constitutes an object. Materials can be pure or impure, living or non-living matter. Materials can be classified on the basis of their physical and chemical properties, or on their geologi ...
and the other material and
ethic Ethics or moral philosophy is a branch of philosophy that "involves systematizing, defending, and recommending concepts of right and wrong behavior".''Internet Encyclopedia of Philosophy'' The field of ethics, along with aesthetics, concerns ma ...
al. He said that the world crisis was from humanity losing the ethical idea of civilization, "the sum total of all progress made by man in every sphere of action and from every point of view in so far as the progress helps towards the spiritual perfecting of individuals as the progress of all progress".Albert Schweitzer. The Philosophy of Civilization, trans. C.T. Campion (Amherst, NY: Prometheus Books, 1987), p. 91. Related words like "civility" developed in the mid-16th century. The abstract noun "civilization", meaning "civilized condition", came in the 1760s, again from French. The first known use in French is in 1757, by
Victor de Riqueti, marquis de Mirabeau Victor de Riqueti, Marquis de Mirabeau (5 October 1715, Pertuis13 July 1789, Argenteuil) was a French economist of the Physiocratic school. He was the father of Honoré, Comte de Mirabeau and André Boniface Louis Riqueti de Mirabeau. He was, i ...
, and the first use in English is attributed to
Adam Ferguson Adam Ferguson, (Scottish Gaelic: ''Adhamh MacFhearghais''), also known as Ferguson of Raith (1 July N.S./20 June O.S. 1723 – 22 February 1816), was a Scottish philosopher and historian of the Scottish Enlightenment. Ferguson was sympathet ...
, who in his 1767 ''
Essay on the History of Civil Society ''An Essay on the History of Civil Society'' is a book by Scottish Enlightenment philosopher Adam Ferguson, first published in 1767. The ''Essay'' established Ferguson's reputation in Britain and throughout Europe. In the second section of the ...
'' wrote, "Not only the individual advances from infancy to manhood but the species itself from rudeness to civilisation".Cited after
Émile Benveniste Émile Benveniste (; 27 May 1902 – 3 October 1976) was a French structural linguist and semiotician. He is best known for his work on Indo-European languages and his critical reformulation of the linguistic paradigm established by Ferdinand ...
, ''Civilisation. Contribution à l'histoire du mot'' (''Civilisation. Contribution to the history of the word''), 1954, published in ''Problèmes de linguistique générale'',
Éditions Gallimard Éditions Gallimard (), formerly Éditions de la Nouvelle Revue Française (1911–1919) and Librairie Gallimard (1919–1961), is one of the leading French book publishers. In 2003 it and its subsidiaries published 1,418 titles. Founded by Ga ...
, 1966, pp. 336–345 (translated by Mary Elizabeth Meek as ''Problems in general linguistics'', 2 vols., 1971).
The word was therefore opposed to barbarism or rudeness, in the active pursuit of
progress Progress is the movement towards a refined, improved, or otherwise desired state. In the context of progressivism, it refers to the proposition that advancements in technology, science, and social organization have resulted, and by extension wi ...
characteristic of the
Age of Enlightenment The Age of Enlightenment or the Enlightenment; german: Aufklärung, "Enlightenment"; it, L'Illuminismo, "Enlightenment"; pl, Oświecenie, "Enlightenment"; pt, Iluminismo, "Enlightenment"; es, La Ilustración, "Enlightenment" was an intel ...
. In the late 1700s and early 1800s, during the
French Revolution The French Revolution ( ) was a period of radical political and societal change in France that began with the Estates General of 1789 and ended with the formation of the French Consulate in November 1799. Many of its ideas are considere ...
, "civilization" was used in the
singular Singular may refer to: * Singular, the grammatical number that denotes a unit quantity, as opposed to the plural and other forms * Singular homology * SINGULAR, an open source Computer Algebra System (CAS) * Singular or sounder, a group of boar, ...
, never in the plural, and meant the progress of humanity as a whole. This is still the case in French. The use of "civilizations" as a countable noun was in occasional use in the 19th century,E.g. in the title ''A narrative of the loss of the Winterton East Indiaman wrecked on the coast of Madagascar in 1792; and of the sufferings connected with that event. To which is subjoined a short account of the natives of Madagascar, with suggestions as to their civilizations'' by J. Hatchard, L.B. Seeley and T. Hamilton, London, 1820. but has become much more common in the later 20th century, sometimes just meaning
culture Culture () is an umbrella term which encompasses the social behavior, institutions, and norms found in human societies, as well as the knowledge, beliefs, arts, laws, customs, capabilities, and habits of the individuals in these groups ...
(itself in origin an uncountable noun, made countable in the context of
ethnography Ethnography (from Greek ''ethnos'' "folk, people, nation" and ''grapho'' "I write") is a branch of anthropology and the systematic study of individual cultures. Ethnography explores cultural phenomena from the point of view of the subject o ...
)."Civilization" (1974), ''
Encyclopædia Britannica The (Latin for "British Encyclopædia") is a general knowledge English-language encyclopaedia. It is published by Encyclopædia Britannica, Inc.; the company has existed since the 18th century, although it has changed ownership various time ...
'' 15th ed. Vol. II, Encyclopædia Britannica, Inc., 956. Retrieved 25 August 2007. Using the terms "civilization" and "culture" as equivalents are controversial and generally rejected so that for example some types of culture are not normally described as civilizations.
Only in this generalized sense does it become possible to speak of a "medieval civilization", which in Elias's sense would have been an oxymoron. Already in the 18th century, civilization was not always seen as an improvement. One historically important distinction between culture and civilization is from the writings of
Rousseau Jean-Jacques Rousseau (, ; 28 June 1712 – 2 July 1778) was a Genevan philosopher, writer, and composer. His political philosophy influenced the progress of the Age of Enlightenment throughout Europe, as well as aspects of the French Revolu ...
, particularly his work about education, '' Emile''. Here, civilization, being more
rational Rationality is the quality of being guided by or based on reasons. In this regard, a person acts rationally if they have a good reason for what they do or a belief is rational if it is based on strong evidence. This quality can apply to an abi ...
and socially driven, is not fully in accord with
human nature Human nature is a concept that denotes the fundamental dispositions and characteristics—including ways of thinking, feeling, and acting—that humans are said to have naturally. The term is often used to denote the essence of humankind, or ...
, and "human wholeness is achievable only through the recovery of or approximation to an original discursive or prerational natural unity" (see
noble savage A noble savage is a literary stock character who embodies the concept of the indigene, outsider, wild human, an "other" who has not been "corrupted" by civilization, and therefore symbolizes humanity's innate goodness. Besides appearing in man ...
). From this, a new approach was developed, especially in Germany, first by
Johann Gottfried Herder Johann Gottfried von Herder ( , ; 25 August 174418 December 1803) was a German philosopher, theologian, poet, and literary critic. He is associated with the Enlightenment, ''Sturm und Drang'', and Weimar Classicism. Biography Born in Mohrun ...
and later by philosophers such as Kierkegaard and
Nietzsche Friedrich Wilhelm Nietzsche (; or ; 15 October 1844 – 25 August 1900) was a German philosopher, Prose poetry, prose poet, cultural critic, Philology, philologist, and composer whose work has exerted a profound influence on contemporary philo ...
. This sees cultures as natural organisms, not defined by "conscious, rational, deliberative acts", but a kind of pre-rational "folk spirit". Civilization, in contrast, though more rational and more successful in material progress, is unnatural and leads to "vices of social life" such as guile, hypocrisy, envy and avarice. 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 opposin ...
,
Leo Strauss Leo Strauss (, ; September 20, 1899 – October 18, 1973) was a German-American political philosopher who specialized in classical political philosophy. Born in Germany to Jewish parents, Strauss later emigrated from Germany to the United States. ...
, having fled Germany, argued in New York that this opinion of civilization was behind
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) in Na ...
and German
militarism Militarism is the belief or the desire of a government or a people that a state should maintain a strong military capability and to use it aggressively to expand national interests and/or values. It may also imply the glorification of the mili ...
and
nihilism Nihilism (; ) is a philosophy, or family of views within philosophy, that rejects generally accepted or fundamental aspects of human existence, such as objective truth, knowledge, morality, values, or meaning. The term was popularized by Ivan ...
.On German Nihilism
(1999, originally a 1941 lecture), ''Interpretation'' 26, no. 3 edited by David Janssens and Daniel Tanguay.


Characteristics

Social scientists such as V. Gordon Childe have named a number of traits that distinguish a civilization from other kinds of society.Gordon Childe, V., ''What Happened in History'' (Penguin, 1942) and ''Man Makes Himself'' (Harmondsworth, 1951). Civilizations have been distinguished by their means of subsistence, types of
livelihood A person's livelihood (derived from ''life-lode'', "way of life"; cf. OG ''lib-leit'') refers to their "means of securing the basic necessities (food, water, shelter and clothing) of life". Livelihood is defined as a set of activities essential t ...
,
settlement Settlement may refer to: *Human settlement, a community where people live *Settlement (structural), the distortion or disruption of parts of a building * Closing (real estate), the final step in executing a real estate transaction *Settlement (fin ...
patterns,
forms of government A government is the system or group of people governing an organized community, generally a State (polity), state. In the case of its broad associative definition, government normally consists of legislature, Executive (government), e ...
,
social stratification Social stratification refers to a society's categorization of its people into groups based on socioeconomic factors like wealth, income, race, education, ethnicity, gender, occupation, social status, or derived power (social and politi ...
, economic systems,
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, huma ...
and other cultural traits.
Andrew Nikiforuk Andrew Nikiforuk (born 1955) is a Canadian journalist and author. His writing has appeared in many outlets, including '' Saturday Night'', ''Maclean's'', ''Alberta Views'', ''Alternatives Journal'', and national newspapers. He has won multiple Nati ...
argues that "civilizations relied on shackled human muscle. It took the energy of slaves to plant crops, clothe emperors, and build cities" and considers
slavery Slavery and enslavement are both the state and the condition of being a slave—someone forbidden to quit one's service for an enslaver, and who is treated by the enslaver as property. Slavery typically involves slaves being made to perf ...
to be a common feature of pre-modern civilizations. All civilizations have depended on
agriculture Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to ...
for subsistence, with the possible exception of some early civilizations in Peru which may have depended upon maritime resources. The traditional "surplus model" postulates that cereal farming results in accumulated storage and a surplus of food, particularly when people use intensive agricultural techniques such as artificial
fertilization Fertilisation or fertilization (see spelling differences), also known as generative fertilisation, syngamy and impregnation, is the fusion of gametes to give rise to a new individual organism or offspring and initiate its development. Proce ...
,
irrigation Irrigation (also referred to as watering) is the practice of applying controlled amounts of water to land to help grow Crop, crops, Landscape plant, landscape plants, and Lawn, lawns. Irrigation has been a key aspect of agriculture for over 5,00 ...
and
crop rotation Crop rotation is the practice of growing a series of different types of crops in the same area across a sequence of growing seasons. It reduces reliance on one set of nutrients, pest and weed pressure, and the probability of developing resistant ...
. It is possible but more difficult to accumulate horticultural production, and so civilizations based on horticultural gardening have been very rare.Hadjikoumis; Angelos, Robinson; and Sarah Viner-Daniels (Eds) (2011), "Dynamics of Neolithisation in Europe: Studies in honour of Andrew Sherratt" (Oxbow Books)
Grain A grain is a small, hard, dry fruit (caryopsis) – with or without an attached hull layer – harvested for human or animal consumption. A grain crop is a grain-producing plant. The two main types of commercial grain crops are cereals and legum ...
surpluses have been especially important because grain can be stored for a long time. A research from the Journal of Political Economy contradicts the surplus model. It postulates that horticultural gardening was more productive than cereal farming. However, only cereal farming produced civilization because of the appropriability of yearly harvest. Rural populations that could only grow cereals could be taxed allowing for a taxing elite and urban development. This also had a negative effect on rural population, increasing relative agricultural output per farmer. Farming efficiency created food surplus and sustained the food surplus through decreasing rural population growth in favour of urban growth. Suitability of highly productive roots and tubers was in fact a curse of plenty, which prevented the emergence of states and impeded economic development. A surplus of food permits some people to do things besides producing food for a living: early civilizations included
soldiers A soldier is a person who is a member of an army. A soldier can be a conscripted or volunteer enlisted person, a non-commissioned officer, or an officer. Etymology The word ''soldier'' derives from the Middle English word , from Old French ...
,
artisan An artisan (from french: artisan, it, artigiano) is a skilled craft worker who makes or creates material objects partly or entirely by hand. These objects may be functional or strictly decorative, for example furniture, decorative art ...
s,
priest A priest is a religious leader authorized to perform the sacred rituals of a religion, especially as a mediatory agent between humans and one or more deities. They also have the authority or power to administer religious rites; in particu ...
s and priestesses, and other people with specialized careers. A surplus of food results in a division of labour and a more diverse range of human activity, a defining trait of civilizations. However, in some places hunter-gatherers have had access to food surpluses, such as among some of the indigenous peoples of the
Pacific Northwest The Pacific Northwest (sometimes Cascadia, or simply abbreviated as PNW) is a geographic region in western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Though ...
and perhaps during the
Mesolithic The Mesolithic (Greek: μέσος, ''mesos'' 'middle' + λίθος, ''lithos'' 'stone') or Middle Stone Age is the Old World archaeological period between the Upper Paleolithic and the Neolithic. The term Epipaleolithic is often used synonymous ...
Natufian culture The Natufian culture () is a Late Epipaleolithic archaeological culture of the Levant, dating to around 15,000 to 11,500 years ago. The culture was unusual in that it supported a sedentary or semi-sedentary population even before the introduction ...
. It is possible that food surpluses and relatively large scale social organization and division of labour predates plant and animal domestication. Civilizations have distinctly different settlement patterns from other societies. The word "civilization" is sometimes defined as "living in cities'''".
Tom Standage Tom Standage (born 1969) is a British journalist, author, and editorial executive currently working as the Deputy Editor of ''The Economist'' newspaper under editor-in-chief, Zanny Minton Beddoes. As head of the newspaper's digital strategy, St ...
(2005), ''A History of the World in 6 Glasses'', Walker & Company, 25.
Non-farmers tend to gather in cities to work and to trade. Compared with other societies, civilizations have a more complex political structure, namely the
state State may refer to: Arts, entertainment, and media Literature * ''State Magazine'', a monthly magazine published by the U.S. Department of State * ''The State'' (newspaper), a daily newspaper in Columbia, South Carolina, United States * ''Our S ...
. State societies are more stratified than other societies; there is a greater difference among the social classes. The
ruling class In sociology, the ruling class of a society is the social class who set and decide the political and economic agenda of society. In Marxist philosophy, the ruling class are the capitalist social class who own the means of production and by exten ...
, normally concentrated in the cities, has control over much of the surplus and exercises its will through the actions of a
government A government is the system or group of people governing an organized community, generally a state. In the case of its broad associative definition, government normally consists of legislature, executive, and judiciary. Government is a ...
or
bureaucracy The term bureaucracy () refers to a body of non-elected governing officials as well as to an administrative policy-making group. Historically, a bureaucracy was a government administration managed by departments staffed with non-elected offi ...
.
Morton Fried Morton Herbert Fried (March 21, 1923 in Bronx, New York – December 18, 1986 in Leonia, New Jersey),conflict theorist and
Elman Service Elman Rogers Service (1915–1996) was an American cultural anthropologist. Biography He was born on May 18, 1915 in Tecumseh, Michigan and died on November 14, 1996 in Santa Barbara, California. He earned a bachelor's degree in 1941 from the ...
, an integration theorist, have classified human cultures based on political systems and
social inequality Social inequality occurs when resources in a given society are distributed unevenly, typically through norms of allocation, that engender specific patterns along lines of socially defined categories of persons. It posses and creates gender c ...
. This system of classification contains four categories * ''Hunter-gatherer bands'', which are generally egalitarianism, egalitarian. * ''horticulture, Horticultural/Pastoralism, pastoral societies'' in which there are generally two inherited social classes; chief and commoner. * ''Highly stratified structures'', or chiefdoms, with several inherited social classes: king, noble, freemen, serf and slave. * ''Civilizations'', with complex social hierarchy, social hierarchies and organized, institutional Forms of government, governments. Economically, civilizations display more complex patterns of ownership and exchange than less organized societies. Living in one place allows people to accumulate more Ownership, personal possessions than nomadic people. Some people also acquire landed property, or private ownership of the land. Because a percentage of people in civilizations do not grow their own food, they must
trade Trade involves the transfer of goods and services from one person or entity to another, often in exchange for money. Economists refer to a system or network that allows trade as a market. An early form of trade, barter, saw the direct excha ...
their goods and services for food in a Market (economics), market system, or receive food through the levy of tribute, redistributive
taxation A tax is a compulsory financial charge or some other type of levy imposed on a taxpayer (an individual or legal entity) by a governmental organization in order to fund government spending and various public expenditures (regional, local, o ...
, tariffs or tithes from the food producing segment of the population. Early human cultures functioned through a gift economy supplemented by limited barter systems. By the early Iron Age, contemporary civilizations developed money as a medium of exchange for increasingly complex transactions. In a village, the potter makes a pot for the brewer and the brewer compensates the potter by giving him a certain amount of beer. In a city, the potter may need a new roof, the roofer may need new shoes, the cobbler may need new horseshoes, the blacksmith may need a new coat and the tanner may need a new pot. These people may not be personally acquainted with one another and their needs may not occur all at the same time. A monetary system is a way of organizing these obligations to ensure that they are fulfilled. From the days of the earliest monetarized civilizations, monopolistic controls of monetary systems have benefited the social and political elites. The transition from simpler to more complex economies does not necessarily mean an improvement in the living standards of the populace. For example, although the Middle Ages is often portrayed as an era of decline from the Roman Empire, studies have shown that the average stature of males in the Middle Ages (c. 500 to 1500 CE) was greater than it was for males during the preceding Roman Empire and the succeeding Early Modern Period (c. 1500 to 1800 CE). Also, the Plains Indians of North America in the 19th century were taller than their "civilized" American and European counterparts. The average stature of a population is a good measurement of the adequacy of its access to necessities, especially food, and its freedom from disease. Writing, developed first by people in Sumer, is considered a hallmark of civilization and "appears to accompany the rise of complex administrative bureaucracies or the conquest state". Traders and bureaucrats relied on writing to keep accurate records. Like money, the writing was necessitated by the size of the population of a city and the complexity of its commerce among people who are not all personally acquainted with each other. However, writing is not always necessary for civilization, as shown by the Inca civilization of the Andes, which did not use writing at all but except for a complex recording system consisting of knotted strings of different lengths and colors: the "Quipus", and still functioned as a civilized society. Aided by their division of labour and central government planning, civilizations have developed many other diverse cultural traits. These include organized religion, development in the arts, and countless new advances in science and technology. Throughout history, successful civilizations have spread, taking over more and more territory, and assimilating more and more previously uncivilized people. Nevertheless, some tribes or people remain uncivilized even to this day. These cultures are called by some "primitive culture, primitive", a term that is regarded by others as pejorative. "Primitive" implies in some way that a culture is "first" (Latin = ''primus''), that it has not changed since the dawn of humanity, though this has been demonstrated not to be true. Specifically, as all of today's cultures are contemporaries, today's so-called primitive cultures are in no way antecedent to those we consider civilized. Anthropologists today use the term "Protohistoric archaeology, non-literate" to describe these peoples. Civilization has been spread by colonization, imperialism, invasion, religious conversion, the extension of bureaucracy, bureaucratic control and
trade Trade involves the transfer of goods and services from one person or entity to another, often in exchange for money. Economists refer to a system or network that allows trade as a market. An early form of trade, barter, saw the direct excha ...
, and by introducing agriculture and writing to non-literate peoples. Some non-civilized people may willingly adapt to civilized behaviour. But civilization is also spread by the technical, material and social dominance that civilization engenders. Assessments of what level of civilization a polity has reached are based on comparisons of the relative importance of agricultural as opposed to trading or manufacturing capacities, the territorial extensions of its power, the complexity of its division of labor, division of labour, and the carrying capacity of its urbanism, urban centres. Secondary elements include a developed transportation system, writing, standardized measurement, currency, contractual and tort-based legal systems, art, architecture, mathematics, scientific understanding, metallurgy, political structures, and organized religion. Traditionally, polities that managed to achieve notable military, ideological and economic power defined themselves as "civilized" as opposed to other societies or human groupings outside their sphere of influence – calling the latter barbarians, wikt:savages, savages, and primitive culture, primitives.


Cultural identity

"Civilization" can also refer to the
culture Culture () is an umbrella term which encompasses the social behavior, institutions, and norms found in human societies, as well as the knowledge, beliefs, arts, laws, customs, capabilities, and habits of the individuals in these groups ...
of a complex society, not just the society itself. Every society, civilization or not, has a specific set of ideas and customs, and a certain set of manufactures and arts that make it unique. Civilizations tend to develop intricate cultures, including a state (polity), state-based decision making apparatus, a literature, professional art,
architecture Architecture is the art and technique of designing and building, as distinguished from the skills associated with construction. It is both the process and the product of sketching, conceiving, planning, designing, and constructing buildings ...
, organized religion and complex customs of education, coercion and control associated with maintaining the elite. The intricate culture associated with civilization has a tendency to spread to and influence other cultures, sometimes assimilating them into the civilization (a classic example being China, Chinese civilization and its influence on nearby civilizations such as Korea, Japan and Vietnam). Many civilizations are actually large cultural spheres containing many nations and regions. The civilization in which someone lives is that person's broadest cultural identity. It is precisely the protection of this cultural identity that is becoming increasingly important nationally and internationally. According to international law, the United Nations and UNESCO try to set up and enforce relevant rules. The aim is to preserve the cultural heritage of humanity and also the cultural identity, especially in the case of war and armed conflict. According to Karl von Habsburg, President of Blue Shield International, the destruction of cultural assets is also part of psychological warfare. The target of the attack is often the opponent's cultural identity, which is why symbolic cultural assets become a main target. It is also intended to destroy the particularly sensitive cultural memory (museums, archives, monuments, etc.), the grown cultural diversity, and the economic basis (such as tourism) of a state, region or community. Many historians have focused on these broad cultural spheres and have treated civilizations as discrete units. Early twentieth-century philosopher Oswald Spengler,Spengler, Oswald, ''Decline of the West: Perspectives of World History'' (1919) uses the German word ''Kultur'', "culture", for what many call a "civilization". Spengler believed a civilization's coherence is based on a single primary cultural symbol. Cultures experience cycles of birth, life, decline, and death, often supplanted by a potent new culture, formed around a compelling new cultural symbol. Spengler states civilization is the beginning of the decline of a culture as "the most external and artificial states of which a species of developed humanity is capable". This "unified culture" concept of civilization also influenced the theories of historian Arnold J. Toynbee in the mid-twentieth century. Toynbee explored civilization processes in his multi-volume ''A Study of History'', which traced the rise and, in most cases, the decline of 21 civilizations and five "arrested civilizations". Civilizations generally declined and fell, according to Toynbee, because of the failure of a "creative minority", through moral or religious decline, to meet some important challenge, rather than mere economic or environmental causes. Samuel P. Huntington defines civilization as "the highest cultural grouping of people and the broadest level of cultural identity people have short of that which distinguishes humans from other species".


Complex systems

Another group of theorists, making use of systems theory, looks at a civilization as a complex system, i.e., a framework by which a group of objects can be analysed that work in concert to produce some result. Civilizations can be seen as networks of cities that emerge from pre-urban cultures and are defined by the economic, political, military, diplomatic, social and cultural interactions among them. Any organization is a complex social system and a civilization is a large organization. Systems theory helps guard against superficial and misleading analogies in the study and description of civilizations. Systems theorists look at many types of relations between cities, including economic relations, cultural exchanges and political/diplomatic/military relations. These spheres often occur on different scales. For example, trade networks were, until the nineteenth century, much larger than either cultural spheres or political spheres. Extensive trade routes, including the Silk Road through Central Asia and Indian Ocean sea routes linking the Roman Empire, History of Iran, Persian Empire, India and China, were well established 2000 years ago when these civilizations scarcely shared any political, diplomatic, military, or cultural relations. The first evidence of such long-distance trade is in the Ancient history, ancient world. During the Uruk period, Guillermo Algaze has argued that trade relations connected Egypt, Mesopotamia, Iran and Afghanistan. Resin found later in the Royal Cemetery at Ur is suggested was traded northwards from Mozambique. Many theorists argue that the entire world has already become integrated into a single "world-system theory, world system", a process known as globalization. Different civilizations and societies all over the globe are economically, politically, and even culturally interdependent in many ways. There is debate over when this integration began, and what sort of integration – cultural, technological, economic, political, or military-diplomatic – is the key indicator in determining the extent of a civilization. David Wilkinson (political scientist), David Wilkinson has proposed that economic and military-diplomatic integration of the Mesopotamian and Ancient Egypt, Egyptian civilizations resulted in the creation of what he calls the "Central Civilization" around 1500 BCE. Central Civilization later expanded to include the entire Middle East and Europe, and then expanded to a global scale with European colonization, integrating the Americas, Australia, China and Japan by the nineteenth century. According to Wilkinson, civilizations can be culturally heterogeneous, like the Central Civilization, or homogeneous, like the Japanese civilization. What Huntington calls the "clash of civilizations" might be characterized by Wilkinson as a clash of cultural spheres within a single global civilization. Others point to the Crusading movement as the first step in globalization. The more conventional viewpoint is that networks of societies have expanded and shrunk since Ancient history, ancient times, and that the current globalized economy and culture is a product of recent European colonialism.


History

The notion of human history as a succession of "civilizations" is an entirely modern one. In the European Age of Discovery, emerging Modernity was put into stark contrast with 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 pa ...
and
Mesolithic The Mesolithic (Greek: μέσος, ''mesos'' 'middle' + λίθος, ''lithos'' 'stone') or Middle Stone Age is the Old World archaeological period between the Upper Paleolithic and the Neolithic. The term Epipaleolithic is often used synonymous ...
stage of the cultures of many of the peoples they encountered. The term "civilization" as it is now most commonly understood, a complex state with centralization, social stratification and specialization of labour, corresponds to early empires that arise in the Fertile Crescent in the Early Bronze Age, around roughly 3000 BC. Gordon Childe defined the emergence of civilization as the result of two successive revolutions: the
Neolithic Revolution The Neolithic Revolution, or the (First) Agricultural Revolution, was the wide-scale transition of many human cultures during the Neolithic period from a lifestyle of hunting and gathering to one of agriculture and settlement, making an incre ...
, triggering the development of settled communities, and the Urban Revolution.


Urban Revolution

At first, 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 pa ...
was associated with shifting subsistence cultivation, where continuous farming led to the depletion of soil fertility resulting in the requirement to cultivate fields further and further removed from the settlement, eventually compelling the settlement itself to move. In major semi-arid river valleys, annual flooding renewed soil fertility every year, with the result that population densities could rise significantly. This encouraged a secondary products revolution in which people used domesticated animals not just for meat, but also for milk, wool, manure and pulling ploughs and carts – a development that spread through the Eurasian Ecumene, Oecumene. The earlier neolithic technology and lifestyle were established first in Western Asia (for example at Göbekli Tepe, from about 9,130 BCE), and later in the Yellow River and Yangtze basins in China (for example the Peiligang culture, Peiligang and Pengtoushan cultures), and later spread. Mesopotamia is the site of the earliest developments of the Neolithic Revolution from around 10,000 BCE, with civilizations developing from 7,400 years ago. This area has been identified as having "inspired some of the most important developments in human history including the invention of the wheel, the planting of the first cereal crops, the building of the earliest cities and the development of the written cursive script". Similar pre-civilized "neolithic revolutions" also began independently from 7,000 BCE in northwestern South America (the Norte Chico civilization) and Mesoamerica. The Black Sea area is a cradle of the European civilization. The site of Solnitsata (5500 BC - 4200 BC) is believed to be the oldest town in Europe - prehistoric fortified (Defensive wall, walled) stone settlement (prehistoric city).Survival of Information: the earliest prehistoric town in Europe
/ref> The first gold artifacts in the world appear from the 4th millennium BC, such as those found in a burial site from 4569 to 4340 BC and one of the most important archaeological sites in world prehistory – the Varna Necropolis near Lake Varna in Bulgaria, thought to be the earliest "well-dated" find of gold artifacts. The 8.2 kiloyear event, 8.2 Kiloyear Arid Event and the 5.9 kiloyear event, 5.9 Kiloyear Interpluvial saw the drying out of semiarid regions and a major spread of deserts. This climate change shifted the cost-benefit ratio of endemic warfare, endemic violence between communities, which saw the abandonment of unwalled village communities and the appearance of walled cities, associated with the first civilizations. This " urban revolution" marked the beginning of the accumulation of transferable surpluses, which helped economies and cities develop. It was associated with the state monopoly of violence, the appearance of a soldier class and endemic warfare, the rapid development of hierarchies, and the appearance of human sacrifice. The civilized urban revolution in turn was dependent upon the development of sedentism, the
domestication Domestication is a sustained multi-generational relationship in which humans assume a significant degree of control over the reproduction and care of another group of organisms to secure a more predictable supply of resources from that group. ...
of grains, plants and animals, the permanence of human settlement, settlements and development of Lifestyle (sociology), lifestyles that facilitated economies of scale and accumulation of surplus production by certain social sectors. The transition from ''complex cultures'' to ''civilizations'', while still disputed, seems to be associated with the development of state structures, in which power was further monopolized by an elite ruling class who practiced human sacrifice. Towards the end of the Neolithic period, various elitist Chalcolithic civilizations began to rise in various Cradle of civilization, "cradles" from around 3600 BCE beginning with Mesopotamia, expanding into large-scale Realm, kingdoms and empires in the course of the Bronze Age (Akkadian Empire, Old Kingdom of Egypt, Neo-Sumerian Empire, Old Assyrian Empire, Babylonian Empire, Hittite Empire, and to some degree the territorial expansions of the Elamites, Hurrians, Amorites and Ebla). A later development took place independently in the Pre-Columbian Americas. Urbanization in the Norte Chico civilization in coastal Peru emerged about 3200 BCE; the oldest known Mayan civilization, Mayan city, located in Guatemala, dates to about 750 BCE. and Teotihuacan in Mexico was one of the largest cities in the world in 350 CE with a population of about 125,000.


Axial Age

The Bronze Age collapse was followed by the Iron Age around 1200 BCE, during which a number of new civilizations emerged, culminating in a period from the 8th to the 3rd century BCE which Karl Jaspers termed the Axial Age, presented as a critical transitional phase leading to Classical antiquity, classical civilization.


Modernity

A major technological and cultural transition to modernity began approximately 1500 CE in Western Europe, and from this beginning new approaches to science and law spread rapidly around the world, incorporating earlier cultures into the technological and industrial society of the present.


Fall of civilizations

Civilizations are traditionally understood as ending in one of two ways; either through incorporation into another expanding civilization (e.g. As Ancient Egypt was incorporated into Hellenistic Greek, and subsequently Roman civilizations), or by collapsing and reverting to a simpler form of living, as happens in so-called Dark Ages. There have been many explanations put forward for the collapse of civilization. Some focus on historical examples, and others on general theory. * Ibn Khaldūn's ''Muqaddimah'' influenced theories of the analysis, growth and decline of the Islamic civilization. He suggested repeated invasions from nomadic peoples limited development and led to social collapse. * Edward Gibbon's work ''The Decline and Fall of the Roman Empire'' is a well-known and detailed analysis of the fall of Roman civilization. Gibbon suggested the final act of the collapse of Rome was the fall of Constantinople to the Ottoman Turks in 1453 CE. For Gibbon, "The decline of Rome was the natural and inevitable effect of immoderate greatness. Prosperity ripened the principle of decay; the cause of the destruction multiplied with the extent of conquest; and, as soon as time or accident had removed the artificial supports, the stupendous fabric yielded to the pressure of its own weight. The story of the ruin is simple and obvious; and instead of inquiring why the Roman Empire was destroyed, we should rather be surprised that it has subsisted for so long". * Theodor Mommsen in his ''History of Rome (Mommsen), History of Rome'' suggested Rome collapsed with the collapse of the Western Roman Empire in 476 CE and he also tended towards a biological analogy of "genesis", "growth", "senescence", "collapse" and "decay". * Oswald Spengler, in his ''Decline of the West'' rejected Petrarch's chronological division, and suggested that there had been only eight "mature civilizations". Growing cultures, he argued, tend to develop into imperialistic civilizations, which expand and ultimately collapse, with democratic forms of government ushering in plutocracy and ultimately imperialism. * Arnold J. Toynbee in his ''A Study of History'' suggested that there had been a much larger number of civilizations, including a small number of arrested civilizations, and that all civilizations tended to go through the cycle identified by Mommsen. The cause of the fall of a civilization occurred when a cultural elite became a parasitic elite, leading to the rise of internal and external proletariats. * Joseph Tainter in ''Societal collapse, The Collapse of Complex Societies'' suggested that there were diminishing returns to complexity, due to which, as states achieved a maximum permissible complexity, they would decline when further increases actually produced a negative return. Tainter suggested that Rome achieved this figure in the 2nd century CE. * Jared Diamond in his 2005 book ''Collapse (book), Collapse: How Societies Choose to Fail or Succeed'' suggests five major reasons for the collapse of 41 studied cultures: environmental damage, such as deforestation and soil erosion; Climate variability and change, climate change; dependence upon international trade, long-distance trade for needed resources; increasing levels of internal and external violence, such as war or invasion; and societal responses to internal and environmental problems. * Peter Turchin in hi
''Historical Dynamics''
and Andrey Korotayev ''et al.'' in thei
''Introduction to Social Macrodynamics, Secular Cycles, and Millennial Trends''
suggest a number of mathematical models describing collapse of agrarian civilizations. For example, the basic logic of Turchin's "fiscal-demographic" model can be outlined as follows: during the initial phase of a sociodemographic Social cycle theory, cycle we observe relatively high levels of per capita production and consumption, which leads not only to relatively high population growth rates, but also to relatively high rates of surplus production. As a result, during this phase the population can afford to pay taxes without great problems, the taxes are quite easily collectible, and the population growth is accompanied by the growth of state revenues. During the intermediate phase, the increasing population growth leads to the decrease of per capita production and consumption levels, it becomes more and more difficult to collect taxes, and state revenues stop growing, whereas the state expenditures grow due to the growth of the population controlled by the state. As a result, during this phase the state starts experiencing considerable fiscal problems. During the final pre-collapse phases the overpopulation leads to further decrease of per capita production, the surplus production further decreases, state revenues shrink, but the state needs more and more resources to control the growing (though with lower and lower rates) population. Eventually this leads to famines, epidemics, state breakdown, and demographic and civilization collapse (Peter Turchin. ''Historical Dynamics''. Princeton University Press, 2003:121–127; Andrey Korotayev et al
Secular Cycles and Millennial Trends. Moscow: Russian Academy of Sciences, 2006
. * Peter Heather argues in his book ''Decline of the Roman Empire#Peter Heather, The Fall of the Roman Empire: a New History of Rome and the Barbarians'' that this civilization did not end for moral or economic reasons, but because centuries of contact with barbarians across the frontier generated its own nemesis by making them a more sophisticated and dangerous adversary. The fact that Rome needed to generate ever greater revenues to equip and re-equip armies that were for the first time repeatedly defeated in the field, led to the dismemberment of the Empire. Although this argument is specific to Rome, it can also be applied to the Asiatic Empire of the Egyptians, to the Han Dynasty, Han and Tang dynasty, Tang dynasties of China, to the Muslim Abbasid Caliphate and others. * Bryan Ward-Perkins, in his book ''The Fall of Rome and the End of Civilization'', argues from mostly archaeological evidence that the collapse of Roman civilization in western Europe had deleterious impacts on the living standards of the population, unlike some historians who downplay this. The collapse of complex society meant that even basic plumbing for the elite disappeared from the continent for 1,000 years. Similar impacts have been postulated for the Greek dark ages, Dark Age after the Late Bronze Age collapse in the Eastern Mediterranean, the collapse of the Maya civilization, Maya, on Easter Island and elsewhere. * Arthur Demarest argues in ''Ancient Maya: The Rise and Fall of a Rainforest Civilization'', using a holistic perspective to the most recent evidence from archeology, paleoecology, and epigraphy, that no one explanation is sufficient but that a series of erratic, complex events, including loss of soil fertility, drought and rising levels of internal and external violence led to the disintegration of the courts of Mayan kingdoms, which began a spiral of decline and decay. He argues that the collapse of the Maya has lessons for civilization today. * Jeffrey A. McNeely has recently suggested that "a review of historical evidence shows that past civilizations have tended to over-exploit their forests, and that such abuse of important resources has been a significant factor in the decline of the over-exploiting society". * Thomas Homer-Dixon i
''The Upside of Down: Catastrophe, Creativity, and the Renewal of Civilization''
where he considers that the fall in the EROEI, energy return on investments. The energy expended to energy yield ratio is central to limiting the survival of civilizations. The degree of social complexity is associated strongly, he suggests, with the amount of disposable energy environmental, economic and technological systems allow. When this amount decreases civilizations either have to access new energy sources or they will collapse. * Feliks Koneczny in his work "On the Plurality of Civilizations" calls his study the science on civilizations. He asserts that civilizations fall not because they must or there exist some cyclical or a "biological" life span and that there stil exist two ancient civilizations – Brahmin-Hindu and Chinese – which are not ready to fall any time soon. Koneczny claimed that civilizations cannot be mixed into hybrids, an inferior civilization when given equal rights within a highly developed civilization will overcome it. One of Koneczny's claims in his study on civilizations is that "a person cannot be civilized in two or more ways" without falling into what he calls an "abcivilized state" (as in abnormal). He also stated that when two or more civilizations exist next to one another and as long as they are vital, they will be in an existential combat imposing its own "method of organizing social life" upon the other. Absorbing alien "method of organizing social life" that is civilization and giving it equal rights yields a process of decay and decomposition.


Future

Political scientist Samuel P. Huntington, Samuel Huntington has argued that the defining characteristic of the 21st century will be a clash of civilizations. According to Huntington, conflicts between civilizations will supplant the conflicts between nation-states and ideologies that characterized the 19th and 20th centuries. These views have been strongly challenged by others like Edward Said, Muhammed Asadi and Amartya Sen. Ronald Inglehart and Pippa Norris have argued that the "true clash of civilizations" between the Muslim world and the West is caused by the Muslim rejection of the West's more liberal sexual values, rather than a difference in political ideology, although they note that this lack of tolerance is likely to lead to an eventual rejection of (true) democracy. In ''Identity and Violence'' Sen questions if people should be divided along the lines of a supposed "civilization", defined by religion and culture only. He argues that this ignores the many others identities that make up people and leads to a focus on differences. Cultural Historian Morris Berman suggests in ''Dark Ages America: the End of Empire'' that in the corporate consumerist United States, the very factors that once propelled it to greatness―extreme individualism, territorial and economic expansion, and the pursuit of material wealth―have pushed the United States across a critical threshold where collapse is inevitable. Politically associated with over-reach, and as a result of the environmental exhaustion and polarization of wealth between rich and poor, he concludes the current system is fast arriving at a situation where continuation of the existing system saddled with huge deficits and a hollowed-out economy is physically, socially, economically and politically impossible. Although developed in much more depth, Berman's thesis is similar in some ways to that of Urban Planner, Jane Jacobs who argues that the five pillars of United States culture are in serious decay: community and family; higher education; the effective practice of science; taxation and government; and the self-regulation of the learned professions. The corrosion of these pillars, Jacobs argues, is linked to societal ills such as environmental crisis, racism and the growing gulf between rich and poor. Cultural critic and author Derrick Jensen argues that modern civilization is directed towards the domination of the environment and humanity itself in an intrinsically harmful, unsustainable, and self-destructive fashion. Defending his definition both linguistically and historically, he defines civilization as "a culture... that both leads to and emerges from the growth of cities", with "cities" defined as "people living more or less permanently in one place in densities high enough to require the routine importation of food and other necessities of life". This need for civilizations to import ever more resources, he argues, stems from their over-exploitation and diminution of their own local resources. Therefore, civilizations inherently adopt imperialist and expansionist policies and, to maintain these, highly militarized, hierarchically structured, and coercion-based cultures and lifestyles. The Kardashev scale classifies civilizations based on their level of technological advancement, specifically measured by the amount of energy a civilization is able to harness. The scale is only hypothetical, but it puts energy consumption in a cosmic perspective. The Kardashev scale makes provisions for civilizations far more technologically advanced than any currently known to exist.


Non-human civilizations

The current scientific consensus is that human beings are the only animal species with the cognitive ability to create civilizations that has emerged on Earth. A recent thought experiment, the silurian hypothesis, however, considers whether it would "be possible to detect an industrial civilization in the geological record" given the paucity of geological information about eras before the quaternary. Astronomers speculate about the existence of communicating intelligent civilizations within and beyond the Milky Way galaxy, usually using variants of the Drake equation. They also conduct Search for extraterrestrial intelligence, searches for such intelligences – such as for technological traces, called "technosignatures". The proposed proto-scientific field "xenoarchaeology" is concerned with the study of artifact remains of non-human civilizations to reconstruct and interpret past lives of alien societies if such get discovered and confirmed scientifically.


See also


References


Bibliography

* * * * * * * * * * * * * *# ''From the Earliest Times to the Battle of Lepanto''. (1987 reprint). *# ''From the Defeat of the Spanish Armada to the Battle of Waterloo''. (1987 reprint). *# ''From the American Civil War to the End of World War II''. (1987 reprint). * * * * * * * * * Andrey Korotayev, Korotayev, Andrey, ''World Religions and Social Evolution of the Old World Oikumene Civilizations: A Cross-Cultural Perspective''. Lewiston, New York: Edwin Mellen Press, 2004. * Nikolay Kradin, Kradin, Nikolay. Archaeological Criteria of Civilization. ''Social Evolution & History'', Vol. 5, No 1 (2006): 89–108. . * * * * * * * * * * *


External links

* *
BBC on civilization

Top 10 oldest civilizations
{{Authority control Anthropological categories of peoples Civilizations, Cultural anthropology Cultural geography Cultural history Culture Linear theories