Era
1918-1945
Since 1918
1918-
761
1945-
327
1918 - 1945
57
20th century
52
1933-1945
48
1929
33
1933-
24
1914-
19
1989-
19
Shōwa period, 1926-1989
17
1945-1980
15
1945-1960
13
1945-1989
13
1918-1933
10
1960-
10
1900-1999
9
1945-1991
8
Since 1945
8
1918-1932
7
1945-1990
7
Since 1914
7
1918-1947
6
1933-1953
6
1945-1992
6
1980-
6
To 1933
6
1918 ****
5
1918-1980
5
1990-
5
1912-1949
4
1918-1938
4
1940-1945
4
1945-1984
4
Since 1900
4
1883-1946
3
1922-1945
3
1929-
3
1929-1933
3
1945
3
1945-1964
3
1945-1970
3
1980-1989
3
1991-
3
1993-
3
2009-
3
20e siècle
3
21st century
3
Revolution, 1918
3
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