16 to 19 century: the impact of world population migration.

Promote world economic development. 16- 19 after the second world war, with the great geographical discovery and the economic reasons of the new sea route, the world population migration led by capitalism began, which showed that the population flowed from developing countries to developed countries and the number of settled immigrants decreased. This has also had a relative impact on promoting the development of the world economy and connecting the world as a whole.