Era
1868-1912
44
1600-1868
33
20th century
28
Meiji period, 1868-1912
27
1945-
24
1760-1849
18
1868-
18
1860-1927
15
1912-1945
13
1945-1989
13
Edo period, 1600-1868
12
Since 1868
11
1868 - 1912
10
Since 1945
10
19th century
9
1900-1999
8
1928-1989
8
21st century
8
1939-1945
7
Allied occupation, 1945-1952
7
1945-1952
5
1600 - 1868
4
1878-1967
4
1901-1989
4
1926-1945
4
1926-1989
4
1939 - 1945
4
Shōwa period, 1926-
4
1800-1912
3
1912-1926
3
1945 - 1989
3
1989-
3
2000-2099
3
Civil War, 1868
3
Restoration, 1853-1870
3
Shōwa period, 1926-1989
3
1133-1212
2
1600-1899
2
1798-1861
2
1847-1915
2
1864-1910
2
1864-1945
2
1867-1916
2
1868-1912 (Ère Meiji)
2
1889-1945
2
1900-1945
2
1926 - 1945
2
1933-1945
2
1937-1945
2
1945
2
more ...