Era
20th century
53
1945-
42
1900-1999
39
1917-1945
39
1939-1945
33
1945-1981
28
Since 1945
24
1939-1940
20
1809-1917
15
1939 - 1940
15
20e siècle
15
1981-
12
Revolution, 1917-1918
12
1900 - 1999
11
1917 - 1945
10
Since 1981
10
1939 - 1945
9
Since 1917
8
2000-2099
7
1870-1956
6
1917-1918
6
1936-1945
6
1923-2017
5
1933-1945
5
1939-
5
1945 - 1981
5
1981-2000
5
1809 - 1917
4
1871-1918
4
1878-1953
4
1900-1986
4
1917 - 1918
4
1925-1953
4
1946-
4
19th century
4
21st century
4
1789-1900
3
1789-1918
3
1867-1951
3
1874-1965
3
1914-1918
3
1917-
3
1917-1936
3
1918-1945
3
1945 - 1989
3
1980-
3
1983-
3
1985-1991
3
1989-
3
Russian Conquest, 1808-1809
3
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