Era
20th century
41
1900-1999
19
1840-1931
15
1945-
10
1886-1971
9
1893-1981
9
21st century
9
1885-1923
7
1879-1946
6
19th century
6
20e siècle
6
1834-1885
5
1871-1911
5
1894-1989
5
1945-1989
5
1873-1957
4
1876-1956
4
1891-1944
4
1912-1945
4
1921-1999
4
1945-2011
4
Since 1945
4
Tokugawa period, 1600-1868
4
1600-1868
3
1787-1856
3
1868-
3
1868-1904
3
1880-1967
3
1894-1964
3
18th century
3
1900 - 1999
3
1905-
3
1906-1991
3
1918-1945
3
1928-
3
1940-
3
1951-
3
1954-
3
1957-
3
1962-
3
1963-
3
1964-
3
1968-
3
1976-
3
2000-2099
3
20e siècle
3
To 1868
3
1185-1600
2
1770-1842
2
1837-1927
2
more ...