Historical Period
20th century
176
19th century
37
21st century
27
To 1964
24
1975-
20
1945-
17
1960-1980
16
1964-1975
12
1868-1963
9
1980-2020
9
1929-1968
7
1963-1969
6
1865-1918
5
1877-1964
5
1862-1931
4
18th century
4
1961-1969
4
1980-
4
Civil War, 1861-1865
4
1865-1950
3
1893-1970
3
1945-1991
3
1951-
3
1984-
3
1989-
3
2001-2009
3
1865-
2
1900-1999
2
1908-1973
2
1909-1992
2
1915-1979
2
1918-
2
1918-1932
2
1918-2018
2
1923-1945
2
1924-1987
2
1925-1990
2
1925-2003
2
1929
2
1933-1945
2
1953-1985
2
1961-1994
2
1969-1974
2
1979-
2
1991-
2
Orange Revolution, 2004
2
1757-1834
1
1823-1911
1
1845-1861
1
1852-1926
1
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