Era
20th century
23
1982-
12
19th century
11
1970-
10
21st century
8
1980-
6
1988-2000
5
2000-
5
1810
4
1945-
4
1983-
4
1886-1931
3
1886-1939
3
1945-1982
3
1973-
3
Since 1945
3
Since 1970
3
1955-
2
1968-
2
1970-1988
2
1973-1985
2
1988-
2
15th century
1
16th century
1
1824-1920
1
1841-1920
1
1872-1956
1
1879-1922
1
1886-1931. \
1
1892-1940
1
1896-1898
1
1910-1980
1
1917-1936
1
1931-1939
1
1939-1975
1
1943-
1
1945-1983
1
1958-
1
1958-1999
1
1961-
1
1973-1988
1
1974-
1
1975-
1
1982-2006
1
1983-2002
1
1984-
1
1999-
1
2002-
1
Isabel I, 1474-1504
1
Napoleonic Conquest, 1808-1813
1
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