The African diaspora refers to the communities throughout the world that are descended from the historic movement of peoples from Africa, predominantly to the Americas, Europe, Asia, and the Middle East, among other areas around the globe. The term has been historically applied in particular to the descendants of the West and Central Africans who were enslaved and shipped to the Americas in the Atlantic slave trade, with the largest population in Brazil (see Afro-Brazilian), followed by the USA and others. Some scholars identify "four circulatory phases" of migration out of Africa.