Era
20th century
57
1910-1946
5
1926-
5
Civil War, 1936-1939
5
1883-1955
4
1898-1936
4
1904-1973
4
1951-
4
1970-1988
4
Wars of Independence, 1810-1821
4
1547-1616
3
1562-1635
3
1852-1926
3
1914-1998
3
21st century
3
1527-1598
2
1599-1660
2
16th century
2
1716-1788
2
1753-1811
2
1765-1815
2
1780-1783
2
1782-1831
2
17th century
2
1810-1821
2
1853-1895
2
1866-1954
2
1875-1939
2
1881-1958
2
1886-1941
2
1889-1957
2
1892-1975
2
1895-1970
2
1904-1959
2
1905-1983
2
1910-1969
2
1911-1979
2
1920-2009
2
1922-
2
1928-
2
1931-
2
1936-
2
1938-2010
2
1940-
2
1943-
2
1949-
2
1952-1999
2
1953-2003
2
1959-
2
19th century
2
more ...