Era
19th century
6
1866-1895
3
18th century
2
1934-
2
20th century
2
Civil War, 1861-1865
2
Colonial period, ca. 1600-1775
2
1783-1815
1
1783-1865
1
1794-
1
1798-1839
1
17th century
1
1812-1815
1
1821-1904
1
1824-1886
1
1834-1883
1
1834-1902
1
1839-1876
1
1848-
1
1858-1942
1
1898-1989
1
1904-1977
1
1908-1991
1
1908-1996
1
1909-1997
1
1946-
1
Indian occupation, 1969-1971
1
Indian occupation, 1973
1
Pleistocene
1
Revolution, 1775-1783
1
War of 1812
1