Era
20th century
44
21st century
8
1929
7
1867-1957
5
19th century
5
Civil War, 1861-1865
3
1564-1616
2
1824-1920
2
1891-1961
2
1930-1961
2
1933-1945
2
1969-
2
1979-1997
2
Japanese occupation, 1910-1945
2
Revolution, 1979
2
Revolution, 1989
2
16th century
1
1714-1837
1
1801-1917
1
1828-1910
1
1844-1919
1
1847-1944
1
1853-1895
1
1864-1910
1
1897-1962
1
1898-1951
1
1899-1973
1
1901-1953
1
1917-1973
1
1918-1932
1
1918-2007
1
1919-1933
1
1924-1960
1
1926-1960
1
1930-
1
1936-1960
1
1939-1945
1
1941
1
1945-
1
1947-
1
1952
1
1959-1990
1
1960
1
1967-
1
1970
1
1986
1
1995
1
2016
1
2017-2021
1
2021
1
more ...