Singapore - financially secure people with Chinese ancestry. Brazil - farmers. Japan restricts immigration by anyone not of pure Japanese ancestry. Often a matter of political compromise and status between countries. Elsewhere US Migration History.
Some humans migrate from their evolutionary homeland in Africa.
Latin America to North 9. After the anti-semitic spasm of WWII the U.N. granted the request for a restoration of the ancestral Jewish homeland in Palestine, to be called Israel. A major phenomenon of the 20th century. Israel was victorious and added territory each time. Continuing conflict in the region over issues of water, land, and human rights.