Changing U.S. Immigration Notes

The United States is inhabited by direct descendants of immigrants. 80 million people migrated here between 1820 and 2015. We've had three eras of immigration: Colonial settlement in the 17th and 18th centuries, European immigration in the late nineteenth and early twentieth centuries, Asian and Latin America immigration in the late twentieth and early twenty-first centuries. 62 percent have come from Europe and 38 percent came from Sub-Saharan Africa. Most of the Africans were forced to migrate here since many of them were slaves and European migrants came here voluntarily.  Between 1820 and 1920, 32 million people migrated here, and 90 percent of them were from Europe. Germany has sent the largest amount of immigrants here: 7.2 million, Italy: 5.4 million, United Kingdom: 5.3 million, Ireland: 4.8 million, and Russia: 4.1 million. Immigration stopped sharply in the 1930s and the 1940s due to The Great Depression and World War II, but then began to rise once again in the 1950s. Mexico passed Germany in 2006 for sending over immigrants.