Asia is the central and eastern part of Eurasia, and the world's largest continent. Defined by subtracting Europe from Eurasia, Asia is either regarded as a landmass of its own, or as part of Eurasia.
The demarcation between Asia and Africa is the isthmus of Suez (although the Sinai Peninsula, being a part of Egypt east of the canal, is often geopolitically considered a part of Africa). The boundary between Asia and Europe runs via the Dardanelles, the Sea of Marmara, the Bosphorus, to the Black Sea, the Caucasus Mountains, the Caspian Sea, the Ural River to its source, and the Ural Mountains to the Kara Sea at Kara, Russia. About 60 percent of the world's human population lives in Asia.
In Hattrick, the Asia transfer market is a part of the Asia, Africa and Oceania zone.