- Europe--Emigration and immigration--History (3)
- America--Emigration and immigration--History (1)
- America--History--To 1810 (1)
- Europeans--America--History (1)
- Europeans--United States--History (1)
- Immigrants--United States--History (1)
- North America--Emigration and immigration--History (1)
- Return migration--Europe--History (1)
- United States--Emigration and immigration--History (1)