Era
Civil War, 1861-1865
375
Revolution, 1775-1783
85
19th century
18
20th century
13
Civil war, 1861-1865
11
Revolution, 1917-1921
8
Civil War, 1936-1939
7
War of 1812
7
French and Indian War, 1754-1763
6
1861-1865
5
1866-1895
5
Cultural Revolution, 1966-1976
5
1732-1799
4
1922-
4
1933-1945
4
1747-1792
3
1809-1865
3
1819-1898
3
1823-1896
3
1828-1864
3
1830-1864
3
1833-1902
3
1839-1876
3
1839-1914
3
1918-
3
1918-1945
3
1921-
3
1924-
3
1925-
3
1929
3
1929-1945
3
b. 1838
3
b. 1840
3
1737-1814
2
1757-1834
2
1765-1831
2
1783-1809
2
1783-1865
2
1820-1891
2
1822-1885
2
1826-1863
2
1828-1914
2
1828-1916
2
1833-1893
2
1833-1916
2
1835-1877
2
1838-1863
2
1841-
2
1841-1912
2
1841-1914
2
more ...