Era
20th century
30
21st century
21
1945-
15
1989-
14
19th century
6
1912-1945
5
1933-1945
4
1945-1989
4
1931-1945
2
1949-
2
2000-
2
Allied occupation, 1945-1952
2
Bombardment, 1940-1945
2
Meiji period, 1868-1912
2
Tertiary
2
Tokugawa period, 1600-1868
2
World War, 1939-1945
2
-1597
1
1185-1600
1
1185-1868
1
1200-1253
1
1333-1600
1
1434?-1525
1
1600-1868
1
16th century
1
1794-1858
1
1831-1904
1
1840-1931
1
1847-1920
1
1851-1922
1
1866-1925
1
1868-
1
1868-1912
1
1870-1922
1
1878-1967
1
1880-1958
1
1880-1964
1
1885-1923
1
1885-1961
1
1899-1995
1
1901-1910
1
1901-1989
1
1911-2006
1
1918-1945
1
1918-1990
1
1925-1995
1
1926-1945
1
1929
1
1929-
1
1930-2019
1
more ...