Era
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1921-1944
1
1922-1945
1
1925-1953
14
1928-1932
6
1931-
1
1933-
1
1933-1937
1
1933-1945
3
1936-1953
75
1939-1945
1
1945-1991
2
1949-1976
1
1953-1985
3
1965-
1
1966-1998
1
1980-
1
1981-
1
1985-1991
3
1991-
1
19th century
1
20th century
30
20th centyr
1
Alexander III, 1881-1894
1
February Revolution, 1917
2
Geschichte 1917-1930
1
Geschichte 1917-1936
1
Geschichte 1917-1938
1
Geschichte 1920-1930
2
Nicholas II, 1894-1917
7
Revolution, 1917-1921
34
Since 1917
2
Warlord period, 1916-1928
1