Reasons for European, African and Asian Residents to immigrate to the United States

1, the core reason of European immigration is that the collapse of European feudal system led to a large number of bankruptcies of farmers and craftsmen, and the expansion brought by European capitalism.

2. The reason for African migration is the sharp decline of Native Americans, and a large number of European slave traders sell slaves from Africa to America.

3. The reasons for Asian immigration are similar to those in Europe, both of which are the bankruptcy of feudal natural economy.