Era
20th century
103
19th century
41
1939-1975
36
1931-1939
28
21st century
24
1975-1982
23
1886-1931
19
1982-
15
Civil War, 1936-1939
13
1621-1665
11
18th century
11
1975-
11
Philip IV, 1621-1665
10
1605-1665
8
16th century
8
17th century
6
1892-1975
6
1813-1833
5
1991-
5
1889-1945
4
1917-1936
4
1918-1945
4
Republic, 1931-1939
4
To 1500
4
1516-1700
3
1598-1621
3
1759-1788
3
1868-1875
3
1871-1918
3
1875-1885
3
1880-1940
3
1886-1941
3
1918-1933
3
1933-1945
3
1939-1945
3
1952-
3
265-30 B.C.
3
Ferdinand VII, 1813-1833
3
Philip V, 1700-1746
3
Revolution, 1934
3
Revolutionary period, 1868-1875
3
1516-1556
2
1521-1898
2
1648-1715
2
1788-1808
2
1808-1814
2
1833-1868
2
1895-1971
2
1898-1935
2
1923-1930
2
more ...