Historical Period
20th century
256
19th century
92
1960-1980
36
18th century
33
21st century
30
1945-1989
27
1945-
22
1989-
16
17th century
11
1961-1969
9
1970-
9
1837-1901
8
1933-1945
8
1963-1969
8
Revolution, 1775-1783
8
1958-
7
Civil War, 1861-1865
7
1800-1859
6
1900-1999
6
1918-1933
6
1944-
6
Early modern, 1500-1700
6
Puritan Revolution, 1642-1660
6
1800-1837
5
1855-1881
5
2001-2009
5
1760-1789
4
1775-1783
4
1789-1820
4
1801-1917
4
1849-1919
4
1852-1942
4
1865-1918
4
1865-1950
4
1910-1936
4
1925-1995
4
1930-1992
4
1980-2020
4
1991-
4
2009-2017
4
Alexander II, 1855-1881
4
Revolution, 1789-1799
4
To 1865
4
16th century
3
1760-1820
3
1813-1865
3
1818-1895
3
1863-1877
3
1875-
3
1879-1962
3
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