Eurásia

Eurasia is the combined continental landmass that includes Europe and Asia. In geographic and cultural usage, the term also denotes a framework that treats Europe and Asia as a single, vast region. It is the largest contiguous landmass on Earth, spanning western Europe to eastern Asia.

Geographically, Eurasia covers about 54.7 million square kilometers, roughly 37 percent of the world's land area. It is home to a majority of the human population, with estimates suggesting about two-thirds of humanity living there.

Because Europe and Asia are not separated by a universal physical boundary, the dividing line between them is conventional. Commonly cited borders run along the Ural Mountains or the Ural River, and/or along the Greater Caucasus, the Black Sea, and the Caspian Sea region.

Historically, Eurasia has been a crossroad of civilizations, trade, and empires, including routes that connected East Asia with Europe via the Silk Road. In modern times, Eurasia is used as a geopolitical and economic concept, evident in structures such as the Eurasian Economic Union and various interregional initiatives. The term is also central to the idea of Eurasianism in some intellectual and political movements.

Origin of the term reflects the combination of Europe and Asia, with usage dating back to the 18th and 19th centuries in scientific and geopolitical discourse.