Historical Period
20th century
13
Civil War, 1861-1865
8
1867-1959
4
21st century
3
Revolution, 1775-1783
3
1933-1945
2
1945-
2
1743-1826
1
1822-1903
1
1827-1906
1
1836-1910
1
1842-1917
1
1847-
1
1847-1879
1
1848-1933
1
1853-1945
1
1865-1918
1
1906-1989
1
1911-2010
1
1913-1967
1
1918-1945
1
1930-
1
1945-1953
1
1947-
1
1953-1961
1
1960-
1
1960-1980
1
1961-1971
1
1964-
1
1973-
1
1975-
1
19th century
1