Era
1917-1921
Revolution, 1917-1921
75
1917 - 1921
38
20th century
14
1900-1999
7
1917-1921 (Révolution)
4
1872-1947
3
1891-1940
3
1917-1945
3
1918-1945
3
Allied intervention, 1918-1920
2
February Revolution, 1917
2
1847-1932
1
1870-1924
1
1880-
1
1880-1947
1
1881-1919
1
1887-1939
1
1893-1930
1
1894-1917
1
1900 - 1999
1
1905 - 1921
1
1905-1921
1
1914-1921
1
1917 - 1936
1
1917 - 1945
1
1917-
1
1917-1921 (Révolution)
1
1917-1936
1
20e siècle
1
Revolution of 1905
1
Revolution, 1905-1907
1
Since 1917
1
b. 1880
1