Era
20th century
64
Bombardment, 1945
36
1912-1945
23
1945-
21
Allied occupation, 1945-1952
19
1868-
14
19th century
14
21st century
11
Meiji period, 1868-1912
11
Tokugawa period, 1600-1868
10
1926-1945
9
1945-1989
8
To 1868
8
1933-1945
7
Restoration, 1853-1870
6
Heian period, 794-1185
5
1600-1868
4
1868-1912
4
1901-1989
4
Bombardment, 1944-1945
4
Period of civil wars, 1480-1603
4
1333-1600
3
1880-1964
3
1931-1945
3
Edo period, 1600-1868
3
1185-1600
2
16th century
2
1864-1910
2
1868-1945
2
1878-1967
2
18th century
2
1918-1945
2
1943-1955
2
Shōwa period, 1926-1989
2
To 645
2
-1597
1
-1971
1
1159-1189
1
1185-1868
1
1434?-1525
1
1536?-1598
1
1568-1600
1
1584-1645
1
1644-1912
1
1760-1849
1
1787-1868
1
1828-1888
1
1831-1904
1
1836-1867
1
1850-1904
1
more ...