Era
19th century
15
18th century
9
1775-1783
4
1775-1865
4
20th century
4
Civil War, 1861-1865
4
1783-1865
3
1861-1865
2
1951-
2
1993-2001
2
1767-1845
1
1767-1848
1
1782-1862
1
1783-1809
1
1787-1865
1
1789-1809
1
17th century
1
1800-1899
1
1815-1861
1
1825-1829
1
1828
1
1837-1841
1
1849-1861
1
1849-1877
1
1861-1865 (Guerre de Sécession)
1
1865-1900
1
1865-1950
1
1931-
1
1961-
1
1971-
1
1980-
1
1989-1993
1
19e siècle
1
2001-
1
2001-2009
1
Colonial period, ca. 1600-1775
1
Revolution, 1775-1783
1
Since 1951
1
Since 1971
1
To 1865
1