Era
1900-1999
3
1906-1966
1
1918-1970
12
1919-1952
1
1945-
1
1945-1964
2
1945-1970
1
1948-1967
1
1952-
2
1952-1970
38
1952-1981
1
1952-2011
1
1962-1990
1
1970-1981
7
1981-
3
1981-2011
5
1990-
1
20th century
6
Geschichte (1948-1977)
1
Geschichte (1952-1977)
1
Geschichte 1952-2001
1
Revolution, 1952
1
Since 1900
1
Since 1945
1
Since 1952
4