Era
20th century
100
19th century
28
Siglo XX
28
Siglo 20
26
1955-1983
17
21st century
16
Siglo XIX
13
S XX
10
18th century
8
1910-1946
6
1931-1939
6
1939-1975
6
S XXI
6
1943-1955
5
1975-1982
5
Civil War, 1936-1939
5
16th century
4
1974-
4
Revolución, 1910-1920
4
Revolution, 1910-1920
4
Siglo 19
4
Siglo XVIII
4
Siglo XXI
4
1810-1899
3
1821-1861
3
1867-1910
3
1945-1985
3
1946-1970
3
1946-1974
3
1975-
3
1988-2000
3
War of Independence, 1810-1822
3
(1940-1962)
2
1516-1700
2
1540-1810
2
1548-1820
2
17th century
2
1806-1872
2
1817-1860
2
1830-1948
2
1838-1908
2
1860-1910
2
1886-1931
2
1943-
2
1948-1980
2
1970-1973
2
1973-1988
2
1980-
2
1999-
2
2000-
2
more ...