History of human migration
Human migration is the movement by people from one place to another, particularly different countries, with the intention of settling temporarily or permanently in the new location. It typically involves movements over long distances and from one country or region to another. The number of people involved in every wave of immigration differs depending on the specific circumstances. Historically, early human migration includes the peopling of the world, i.e. migration to world regions where there was previously no human habitation, during the Upper Paleolithic.