Era
20th century
62
21st century
61
1993-
34
2003-
18
Civil War, 1975-1990
17
Civil War, 2011-
17
Protests, 2011-2013
16
Since 1993
15
Revolution, 1954-1962
14
1952-1970
11
1900-1999
10
1981-2011
10
2000-2099
9
1928-2020
8
2000-
8
Since 2000
8
1990-
7
Protests, 2011-
7
1898-1975
6
1900 - 1999
6
2001-2009
6
2011
6
Demonstrations, 2010-
6
1911-2006
5
1917-1948
5
1918-1970
5
1948-1967
5
1965-
5
1970-1981
5
1971-
5
1981-
5
Civil War, 1983-2005
5
18th century
4
1948-
4
1975-
4
19th century
4
2001-
4
2003-2011
4
750-1258
4
Civil War, 1983-
4
Since 1900
4
1250-1517
3
1925-1961
3
1929-1948
3
1945-1962
3
1946-
3
1952-
3
1954-1962
3
1955-
3
1957-
3
more ...