Non-Africans evolved from Africans who migrated out of Africa about 60,000-70,000 years ago. They followed the coastal route and ended up in east Asia and Australia. Europeans evolved from Central Asians who migrated out of Africa slightly later, but the Central Asians spent about 20,000 years adapting to the Central Asian Steppes before migrating to Europe 40,000 years ago. Some Central Asians migrate East and ended up in north Asia and China, and later the Western Hemisphere. All non-Africans are more closely related to each other than they are to Africans. The closest relatives of non-Africans is the San Bushmen of Africa.