Era
20th century
7
1900-1999
4
21st century
4
1980-1989
3
2000-2099
3
To 146 B.C.
3
To 1500
3
1955-
2
1988-
2
1910-1920 (Revolution)
1
1945-
1
1945-1989
1
1945-1990
1
1959-1990
1
1960-1980
1
1975-1982
1
1979-
1
1980-
1
1985-
1
1989-
1
1990-
1
Geschichte 1945-1998
1
Geschichte 1980-2001
1
Revolution, 1959
1
Since 1945
1
Since 1955
1