Era
20th century
6
1992-2003
5
1945-
4
1980-1992
4
1900-1999
2
1945-1980
2
1945-1992
2
1985-1991
2
1992-
2
1900-2003
1
1917-
1
1917-2010
1
1933-
1
1933-1945
1
1938-
1
1945-1981
1
1954-
1
1980-1995
1
1980-2003
1
1988-
1
1989-
1
1990-
1
1991-
1
1991-1995
1
1991-1997
1
20e siècle
1
Civil War, 1998-1999
1
Since 1945
1
Since 1991
1
Soviet occupation, 1979-1989
1
To 146 B.C
1