Era
Revolution, 1917-1921
1917-1921
44
20th century
21
1917-1936
16
1917 - 1921
14
1900-1999
12
1917-1921 (Révolution)
6
1945-1991
5
1801-1917
4
1801-1921
4
1945-1989
4
1953-1985
4
February Revolution, 1917
4
1917-1945
3
1917-1953
3
1917-1991
3
1917-1992
3
1876-1938
2
1904-1914
2
1917-
2
1917-1921 (Révolution)
2
1917-1985
2
1936-1953
2
20e siècle
2
Revolution, 1905-1907
2
Since 1917
2
1857-1918
1
1870-1918
1
1894-1917
1
1914 - 1921
1
1914-1921
1
1917
1
1917 (Révolution)
1
1917 - 1936
1
1917- (Revolution)
1
1917- (Revolution)
1
1917-1918
1
1917-1922
1
1917-1932
1
1917-1955
1
1917-1989
1
1918
1
1919-1932
1
1925-1953
1
1945-1955
1
19th century
1
20e siècle
1
Allied intervention, 1918-1920
1
Famine, 1921-1922
1
Nicholas II, 1894-1917
1