Era
20th century
48
1900-1999
15
1960-1980
12
Since 1900
8
1969-
7
1971-
7
1945-1989
6
1969-1974
6
1970-
6
1974-1977
6
1977-1981
6
1945-
4
1961-1969
3
1971-1981
3
1900 - 1999
2
1971-1980
2
Since 1971
2
1564-1616
1
1913-1994
1
1918-1996
1
1940-
1
1945-1990
1
1949-
1
1954-
1
1955-1983
1
1959-1990
1
1962-
1
1965-1975
1
1965-1985
1
1971-1990
1
1975-1985
1
Geschichte (umfassend)
1
Geschichte 1970-1980
1
Since 1945
1
Since 1960
1
Since 1969
1
Since 1970
1