• United states is inhabited overwhelmingly by direct dependents from immigrants.
• 80 million people migrated to the US between 1820 and 2015
• US had 3 main eras of immigration

1. Colonial settlement in the seventeenth and eighteenth centuries
2. Mass European immigration in the late nineteenth and early twentieth centuries
3. Asian and Latin American immigration in the late twentieth and early twenty-first centuries.

• U.S. population in 1790 was 3.9 million, 950000 of them were people who migrated to the colonies.
• 1790- 62 percent of immigrants came from Europe 50 percent of that came from modern day U.K. or Ireland.
• Most Africans are descendants forced to migrate to the western hemisphere. 360000 Africans were living in the U.S.
• In 1808, 250000 more were brought over
• between 1905 and 1920, 32 million people migrated to the U.S. 90% of them migrated from Europe
• 1840s and 1850s- annual immigration jumped to 200000. 3/4ths of all immigrants were from Ireland or Germany
• in the 1880s, immigration increase to 500000 per year.
• 1905-1914- immigration increases to 1 million per year.
• Immigration in the U.S. dropped in the 1930s and 40s because of the depression and ww2.
• around 13 million Latin Americans have migrated to america in the past half century, and 7 million Asians
• Mexico passed Germany in 2006 for immigration because of undocumented immigrants
• Immigrants were lured by economic opportunity and social advancements in the U.S.