Eurasian White-fronted Dipper, C Cinclus

Eurasia (, ) is the largest continental area on Earth, comprising all of Europe and Asia. Primarily in the Northern and Eastern Hemispheres, it spans from the British Isles and the Iberian Peninsula in the west to the Japanese archipelago and the Russian Far East to the east. The continental landmass is bordered by the Atlantic Ocean and Africa to the west, the Pacific Ocean to the east, the Arctic Ocean to the north, and by Africa, the Mediterranean Sea, and the Indian Ocean to the south. The division between Europe and Asia as two continents is a historical social construct, as many of their borders are over land; thus, in some parts of the world, Eurasia is recognized as the largest of the six, five, or four continents on Earth. In geology, Eurasia is often considered as a single rigid megablock. However, the rigidity of Eurasia is debated based on paleomagnetic data.

Eurasia covers around , or around 36.2% of the Earth's total land area. It is also home to the largest country in the world, Russia. The landmass contains well over 5 billion people, equating to approximately 70% of the human population. Humans first settled in Eurasia between 60,000 and 125,000 years ago. Some major islands, including Great Britain, Iceland, Ireland, and Sri Lanka, and parts of Japan, the Philippines, and most of Indonesia, are often included in the popular definition of Eurasia, despite being separate from the contiguous landmass.

According to some geographers, physiographically, Eurasia is a single continent. The concepts of Europe and Asia as distinct continents date back to antiquity, but their borders are geologically arbitrary and have historically been subjected to occasional change. Eurasia is connected to Africa at the Suez Canal, and Eurasia is sometimes combined with Africa to make the largest contiguous landmass on Earth, called Afro-Eurasia. Due to the vast landmass and differences in latitude, Eurasia exhibits all types of climates under the Köppen classification, including the harshest types of hot and cold temperatures, high and low precipitation, and various types of ecosystems.

Geology

Eurasia formed between 375 and 325 million years ago with the merging of Siberia, Kazakhstania, and Baltica, which was joined to Laurentia (now North America), to form Euramerica. Chinese cratons collided with Siberia's southern coast.

History

Eurasia has been the host of many ancient civilizations, including those based in Mesopotamia, the Indus Valley and China. In the Axial Age (mid- first millennium BC), a continuous belt of civilizations stretched through the Eurasian subtropical zone from the Atlantic to the Pacific. This belt became the mainstream of world history for two millennia.

Geopolitics

Originally, "Eurasia" is a geographical notion: in this sense, it is simply the biggest continent; the combined landmass of Europe and Asia. However, geopolitically, the word has several meanings, reflecting specific geopolitical interests. "Eurasia" is one of the most important geopolitical concepts and it figures prominently in the commentaries on the ideas of Halford Mackinder. As Zbigniew Brzezinski observed on Eurasia:

The Russian " Eurasianism" corresponded initially more or less to the land area of Imperial Russia in 1914, including parts of Eastern Europe. One of Russia's main geopolitical interests lies in ever closer integration with those countries that it considers part of "Eurasia." This concept is further integrated with communist eschatology by author Alexander Dugin as the guiding principle of "self-sufficiency of a large space" during expansion.

The term ''Eurasia'' gained geopolitical reputation as one of the three superstates in ''1984'', George Orwell's novel where constant surveillance and propaganda are strategic elements (introduced as reflexive antagonists) of the heterogeneous dispositif such metapolitical constructs used to control and exercise power.

Regional organisations and alliances

Across Eurasia, several single markets have emerged, including the Eurasian Economic Space, European Single Market, ASEAN Economic Community, and the Gulf Cooperation Council. There are also several international organizations and initiatives which seek to promote integration throughout Eurasia, including:

Asia-Europe Meeting

* Every two years since 1996 a meeting of most Asian and European countries is organised as the Asia–Europe Meeting (ASEM).

Commonwealth of Independent States

* The Commonwealth of Independent States (CIS) is a political and economic association of 10 post-Soviet republics in Eurasia formed following the dissolution of the Soviet Union. It has an estimated population of 239,796,010. The CIS encourages cooperation in economic, political, and military affairs and has certain powers to coordinate trade, finance, lawmaking and security. In addition, six members of the CIS have joined the Collective Security Treaty Organization, an intergovernmental military alliance that was founded in 1992.

Eurasian Union

* Similar in concept to the European Union, the Eurasian Union is an economic union established in 2015 including Russia, Armenia, Belarus, Kazakhstan, Kyrgyzstan and observer members Moldova, Uzbekistan, and Cuba. It is headquartered in Moscow, Russia and Minsk, Belarus. The union promotes economic integration among members and is theoretically open to enlargement to include any country in Europe or Asia.

Federation of Euro-Asian Stock Exchanges

* The Federation of Euro-Asian Stock Exchanges (FEAS) is an international organization headquartered in Yerevan, comprising the main stock exchanges in Eastern Europe, the Middle East and Central Asia. The purpose of the Federation is to contribute to the cooperation, development, support and promotion of capital markets in the Eurasian region.

Russia-EU Common Spaces

* The Russia – EU Four Common Spaces Initiative, is a joint European Union and Russian agreement to closer integrate Russia and the EU, remove barriers to trade and investment and promote reforms and competitiveness. In 2010, Russian Prime Minister Vladimir Putin called for common economic space, free-trade area or more advanced economic integration, stretching from Lisbon to Vladivostok. However, no significant progress was made and the project was put on hold after Russia-EU relations deteriorated following the Russo-Ukrainian War in 2014.

Shanghai Cooperation Organisation

* The Shanghai Cooperation Organisation is a Eurasian political, economic and security alliance, the creation of which was announced on 15 June 2001 in Shanghai, China. It is the largest regional organisation in the world in terms of geographical coverage and population, covering three-fifths of the Eurasian continent and nearly half of the human population.

Use of term

History of the Europe–Asia division

In ancient times, the Greeks classified Europe (derived from the mythological Phoenician princess Europa) and Asia which to the Greeks originally included Africa (derived from Asia, a woman in Greek mythology) as separate "lands". Where to draw the dividing line between the two regions is still a matter of discussion. Especially whether the Kuma-Manych Depression or the Caucasus Mountains form the southeast boundary is disputed, since Mount Elbrus would be part of Europe in the latter case, making it (and not Mont Blanc) Europe's highest mountain. Most accepted is probably the boundary as defined by Philip Johan von Strahlenberg in the 18th century. He defined the dividing line along the Aegean Sea, Dardanelles, Sea of Marmara, Bosporus, Black Sea, Kuma–Manych Depression, Caspian Sea, Ural River, and the Ural Mountains. However, at least part of this definition has been subject to criticism by many modern analytical geographers like Halford Mackinder, who saw little validity in the Ural Mountains as a boundary between continents.

Geography

In modern usage, the term "Eurasian" is a demonym usually meaning "of or relating to Eurasia" or "a native or inhabitant of Eurasia". It is also used to describe people of combined "Asian" and "European" descent.

Located primarily in the eastern and northern hemispheres, Eurasia is considered a supercontinent, part of the supercontinent of Afro-Eurasia or simply a continent in its own right. In plate tectonics, the Eurasian Plate includes Europe and most of Asia but not the Indian subcontinent, the Arabian Peninsula or the area of the Russian Far East east of the Chersky Range.

From the point of view of history and culture, Eurasia can be loosely subdivided into Western and Eastern Eurasia.

Soviet states after decentralization

Nineteenth-century Russian philosopher Nikolai Danilevsky defined Eurasia as an entity separate from Europe and Asia, bounded by the Himalayas, the Caucasus, the Alps, the Arctic, the Pacific, the Atlantic, the Mediterranean, the Black Sea and the Caspian Sea, a definition that has been influential in Russia and other parts of the former Soviet Union. Nowadays, partly inspired by this usage, the term Eurasia is sometimes used to refer to the post-Soviet space – in particular Russia, the Central Asian republics, and the Transcaucasus republics – and sometimes also adjacent regions such as Turkey and Mongolia.

The word "Eurasia" is often used in Kazakhstan to describe its location. Numerous Kazakh institutions have the term in their names, like the L. N. Gumilev Eurasian National University ( kk, Л. Н. Гумилёв атындағы Еуразия Ұлттық университеті; russian: Евразийский Национальный университет имени Л. Н. Гумилёва) (Lev Gumilev's Eurasianism ideas having been popularized in Kazakhstan by Olzhas Suleimenov), the Eurasian Media Forum, the Eurasian Cultural Foundation (russian: Евразийский фонд культуры), the Eurasian Development Bank (russian: Евразийский банк развития), and the Eurasian Bank. In 2007 Kazakhstan's president, Nursultan Nazarbayev, proposed building a " Eurasia Canal" to connect the Caspian Sea and the Black Sea via Russia's