* Primary Immigrants: English Puritans, Scots-Irish, Germans
* Reasons for Immigration: Religious freedom, economic opportunity
* Destination: New England, Mid-Atlantic colonies
Antebellum Era (1820-1860)
* Primary Immigrants: Germans, Irish, British, French
* Reasons for Immigration: Economic opportunity, political unrest, religious freedom
* Destination: Northeastern United States, Midwest
Postbellum Era (1865-1914)
* Primary Immigrants: Italians, Poles, Jews, Russians, Chinese
* Reasons for Immigration: Economic opportunity, persecution in home countries
* Destination: Northeastern United States, Midwest, West Coast
World War I and Interwar Period (1914-1945)
* Primary Immigrants: Mexicans, Canadians, Europeans
* Reasons for Immigration: Economic opportunity, war in Europe
* Destination: Northeastern United States, Midwest, West Coast
Post-World War II Era (1945-1965)
* Primary Immigrants: Europeans, Asians, Latin Americans
* Reasons for Immigration: Political unrest in Europe, economic opportunity in the U.S.
* Destination: Northeastern United States, Midwest, West Coast, Sun Belt
Recent Era (1965-Present)
* Primary Immigrants: Asians, Latin Americans, Africans
* Reasons for Immigration: Family reunification, economic opportunity
* Destination: Northeastern United States, Midwest, West Coast, Sun Belt
Overall Trends:
* Increased Diversity: The United States has become increasingly diverse over time. In the 19th century, most immigrants came from Europe. Today, immigrants come from all over the world.
* Changing Origins: The countries of origin of immigrants have changed over time. In the 19th century, most immigrants came from Northern and Western Europe. In the 20th century, most immigrants came from Southern and Eastern Europe, Latin America, and Asia.
* Impact on the US: Immigration has had a significant impact on the United States. It has helped to build the economy, enrich the culture, and strengthen the nation's commitment to diversity and social justice.