Era
20th century
8
21st century
3
1809-1865
2
1900-1999
2
1900-2099
2
Civil War, 1861-1865
2
1732-1799
1
1783-1815
1
1783-1865
1
1823-1867
1
1839-1876
1
1890-1973
1
1896-1993
1
1902-1974
1
1939-1945
1
1961-1975
1
1976-2005
1
19th century
1
2001-
1
2005
1
Colonial period, ca. 1600-1775
1
Revolution, 1775-1783
1