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Eurasia is a large landmass covering about 52,990,000 km2 (20,846,000 mi2) or about 10.6% of the Earth's surface (36.2% of the land area). Often considered a single continent, "Most people recognize seven continents—Asia, Africa, North America, South America, Antarctica, Europe, and Australia, from largest to smallest—although sometimes Europe and Asia are considered a single continent, Eurasia." Eurasia comprises the traditional continents of Europe and Asia (and Eurasia is a portmanteau of the two), concepts which date back to classical antiquity and the borders for which are somewhat arbitrary. Eurasia, in turn, is part of the yet larger landmass of Afro-Eurasia, whereby Eurasia is joined to Africa at the Isthmus of Suez. Read full entry

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