Era
1918-1945
Since 1918
1918-
643
1945-
315
1918 - 1945
53
1933-1945
48
20th century
44
1929
26
1933-
24
1989-
19
1914-
17
Shōwa period, 1926-1989
17
1945-1980
15
1945-1960
13
1945-1989
13
1918-1933
10
1960-
10
1945-1991
8
Since 1945
8
1900-1999
7
1918-1932
7
1945-1990
7
1918-1947
6
1933-1953
6
1945-1992
6
1980-
6
Since 1914
6
To 1933
6
1918-1980
5
1990-
5
1912-1949
4
1918 ****
4
1918-1938
4
1940-1945
4
1945-1984
4
Since 1900
4
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
1867-1935
2
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