Era
Civil War, 1861-1865
93
20th century
51
19th century
48
1861-1865
39
1900-1999
38
1775-1865
20
1861 - 1865
19
1800-1899
14
1900 - 1999
8
Revolution, 1775-1783
8
1800 - 1899
7
2000-2099
7
1950-1953
6
21st century
6
1696-1785
5
1820-1891
5
1861-1865 (Guerre de Sécession)
5
1865-
5
1887
4
1929
4
20e siècle
4
Colonial period, ca. 1600-1775
4
1775 - 1865
3
1775-1899
3
1816-1870
3
1865-1898
3
1892
3
1900-1910
3
1900-1949
3
1939-1945
3
1775 - 1783
2
1812-1883
2
1837-1913
2
1847-1911
2
1848-1908
2
1854
2
1861-1865, Civil War
2
1863
2
1865
2
1884-1915
2
1899
2
1909
2
1918-1932
2
1918-1945
2
1919-1933
2
1933-1945
2
1961-1970
2
2005
2
Revolution
2
War of 1812
2
more ...