Historical Period
20th century
214
19th century
141
21st century
33
18th century
14
1918-1945
10
1865-1918
7
1900-1999
7
Civil War, 1861-1865
7
1945-
6
1800-1837
4
1800-1999
4
1865-1900
4
1918-1933
4
1944-
4
1945-1989
4
1958-
4
2001-2009
4
Revolution, 1905-1907
4
Revolution, 1918
4
1789-1820
3
17th century
3
1837-1901
3
1991-
3
2009-
3
Colonial period, ca. 1600-1775
3
Revolution, 1917-1921
3
To 1500
3
1066-1485
2
1533-1917
2
1723-1791
2
1759-1833
2
1775-1783
2
1800-1899
2
1802-1832
2
1815-1861
2
1854-1951
2
1865-
2
1880-1943
2
1884-1962
2
1890-1979
2
1909-1989
2
1909-2011
2
1915-1969
2
1918-1932
2
1919-1933
2
1928-1932
2
1930-1935
2
1935-
2
1945-1958
2
1945-1995
2
more ...