Era
1960-
1960-1988
8
1988-
5
1988-2002
5
1960-1997
3
Since 1960
3
1948-1960
2
1960-1988-
2
1960-2002
2
1945-
1
1946-1986
1
1948 - 2002
1
1948 1960
1
1948-1988
1
1948-1993
1
1948-2002
1
1960
1
1960 1988 Congresses
1
1960-1990
1
1986-
1
1988
1
1989-
1
20e siècle
1
20e siècle
1
20th century
1
Geschichte 1948-1990
1
Geschichte 1960
1
Since 1900
1
Since 1945
1
Since 1948
1