Historical Period
20th century
71
Civil War, 1861-1865
22
19th century
18
21st century
17
1945-
6
To 1500
6
1918-1945
5
1809-1865
3
1846-1950
3
1861-1865
3
1865-1918
3
1933-1945
3
476-1492
3
Civil War, 1936-1939
3
Civil War, 1991-2002
3
To 1492
3
To 1865
3
1870-1918
2
1900-1999
2
1905-1950
2
1914-1945
2
1917-1945
2
1945-1975
2
1945-1989
2
1960-
2
1971-
2
1979-1991
2
1989-
2
1990-
2
510-30 B.C.
2
Athenian supremacy, 479-431 B.C.
2
Civil War, 1975-1990
2
Civil War, 1996-2006
2
Civil War, 49-45 B.C.
2
Persian Wars, 500-449 B.C.
2
1492-1648
1
1648-1789
1
1789-1820
1
18th century
1
1917-1936
1
1919-1947
1
1929-1968
1
1936-1953
1
1961-2011
1
1962-
1
1979-
1
1980-
1
1980-2020
1
Eighty Years' War, 1568-1648
1
George III, 1760-1820
1
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