Era
1974-
61
20th century
50
Since 1974
28
Since 1900
21
1946-1974
14
1900-1999
12
1946-
9
Since 1946
9
1900 - 1999
7
1931-1998
7
1961-
5
1887-1978
4
1894-1985
4
1950-
4
1951-
4
1970-
4
1891-1973
3
1898?-1948
3
1928-1967
3
Since 1970
3
17th century
2
1817-1893
2
1891-
2
1896-1948
2
1899 - 1903
2
1899-1903
2
1928-2011
2
1930-1946
2
1945-1985
2
1955-
2
1964-1985
2
Revolution, 1899-1903
2
Revolution, 1959
2
Since 1951
2
(1743-1826)
1
(1770-1838)
1
(1774-1809)
1
(1920- ...)
1
-1858 or 1859
1
-1967
1
1519-1540
1
1522-1548
1
1539-1616
1
1600-1699
1
1701-1774
1
1743-1826
1
1760-1823
1
1769-1859
1
1770-
1
1770-1838
1
more ...