Era
20th century
81
Revolution, 1917-1921
64
1900-1999
24
1917-
22
19th century
19
1917-1945
17
1870-1924
13
1917-1936
13
18th century
11
1953-1985
10
1801-1917
9
1985-1991
9
20e siècle
9
1851-1934
8
1917-1921
8
1917-1921 (Révolution)
7
1945-1991
7
1869-1939
5
1925-1953
5
1970-1991
5
1991-
5
approximately 1510-1583
5
17th century
4
1862-1946
4
1894-1917
4
1945-1955
4
1945-1989
4
400-1450
4
Allied intervention, 1918-1920
4
Revolution, 1905-1907
4
16th century
3
1900-1945
3
1917-1991
3
1933-1945
3
1939-1945
3
1945-
3
1986-1991
3
German occupation, 1941-1944
3
Geschichte
3
To 1700
3
(1851-1934)
2
1861-1918
2
1878-1953
2
1886-1938
2
1888-1984
2
1894-1921
2
1904-
2
1917-1928
2
1917-1970
2
1918-1920 (Intervention alliée)
2
more ...