Era
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Since 1947
4
Since 1971
4
Since 1986
4
Since 1993
4
1864-1920
3
1886-1931
3
1900-2099
3
1918-
3
1945-1982
3
1969-
3
1971-
3
1972-
3
1976-2000
3
1979-
3
1981-2009
3
1997-
3
1999-
3
2009-
3
Since 1968
3
Since 1983
3
Since 1985
3
17th century
2
1824-1920
2
1858-1917
2
1886-1939
2
1930-2002
2
1943-
2
1950-
2
1952-
2
1961-
2
1970-1973
2
1970-1982
2
1971-2001
2
1973-1985
2
1974-2009
2
1975-1982
2
1976-1994
2
1981-1995
2
1983-2002
2
1984-
2
1985-2002
2
1988-2002
2
2001-
2
Since 1918
2
Since 1949
2
Since 1952
2
Since 1958
2
Since 1969
2
Since 1972
2
Since 1974
2
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