Era
20th century
83
19th century
16
21st century
15
1989-
12
1933-1945
11
1993-
9
1991-
8
18th century
7
1985-1991
7
1945-1989
6
1980-
6
1978-
5
1990-
5
1900-1999
4
1918-1933
4
1918-1945
4
1945-
4
1960-
4
17th century
3
1870-1940
3
1900 - 1999
3
1945-1990
3
1951-
3
1985-
3
1992-
3
Civil War, 1983-2009
3
1800-1933
2
1803-1865
2
1865-1950
2
1914-1944
2
1918-1938
2
1940-1945
2
1945-1992
2
1952-
2
1980-1992
2
1988-
2
2003-
2
Civil War, 1967-1970
2
Civil War, 1994
2
Colonial period, ca. 1600-1775
2
Darfur Conflict, 2003-
2
Occupation, 1939-1945
2
Ottoman Empire, 1288-1918
2
Peasant Uprising, 1994-
2
Since 1991
2
To 1865
2
1081-1453
1
1648-1714
1
16th century
1
1765-1947
1
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