Era
1985-1991
1985 - 1991
28
20th century
11
1985-
10
1991-
10
1953-1985
9
Since 1985
8
1982-
7
1970-1991
6
1986-1991
5
1989-
4
1917-1991
3
1953-1991
3
1975-1985
3
1970-
2
Since 1982
2
(1167?-1227)
1
1162-1227
1
1900 - 1999
1
1900-1999
1
1900-2000
1
1917 - 1991
1
1917-
1
1931-
1
1931-2007
1
1940-1991
1
1944-1991
1
1950-
1
1953-1975
1
1970 - 1991
1
1980-1992
1
1988-
1
1988-1994
1
1990-
1
1991
1
1991-1997
1
Since 1900
1
Since 1953
1
Since 1970
1
Since 1991
1
Soviet occupation, 1979-1989
1