Era
20th century
55
21st century
45
19th century
15
To 1500
14
1945-
8
750-1258
8
-632
7
1991-
7
Ottoman Empire, 1288-1918
7
1957-2011
6
1979-
5
1997-
5
1941-1979
4
1942-
4
1960-
4
1979-1997
4
1990-
4
2001-2009
4
476-1492
4
622-661
4
1058-1111
3
1304-1377
3
18th century
3
1970-
3
1998-
3
600-1500
3
661-750
3
Middle Ages, 600-1500
3
Tuareg Rebellion, 2012-
3
-1641
2
1526-1765
2
1937-2006
2
1952-
2
1953-
2
1957-
2
1963-
2
1964-
2
1969-
2
1973-1989
2
1981-
2
1985-
2
1988-
2
1993-
2
2007-
2
973?-1048
2
980-1037
2
Coup d'état, 2012
2
Revolution, 1979
2
-1025
1
-1117?
1
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