Era
1917-
Since 1917
329
1917-1945
238
1917-1921
135
20th century
127
Revolution, 1917-1921
67
1917-1991
63
1945-1991
50
Since 1900
38
1900-1999
30
1917 - 1945
22
1900 - 1999
20
1918-
18
20e siècle
16
German occupation, 1941-1944
16
1891-1938
15
1917-1936
15
1775-1917
12
1991-
12
1921-1944
11
1917-1921 (Révolution)
10
1944-1991
10
1945-
10
1991-2014
10
1870-1924
9
1909-1959
9
1866-1934
8
1939-1945
7
1879-1926
6
1918-1945
6
Since 1914
6
Wars of 1918-1921
6
1873-1945
5
1939 - 1945
5
21st century
5
1878-1953
4
1897-
4
1902-
4
1914-
4
1914-2004
4
1917-1928
4
19th century
4
Since 1775
4
Since 1918
4
1814-1861
3
1880-1951
3
1904-1957
3
1907-1950
3
1912-
3
1913-
3
more ...