Era
20th century
111
19th century
14
21st century
14
1929-1968
9
1868-1963
8
1877-1964
8
18th century
7
1975-
6
1863-1877
5
1887-1940
4
1945-1989
4
1961-1969
4
1964-
4
Civil War, 1861-1865
4
To 1863
4
1865-1877
3
1925-1965
3
1933-1945
3
Revolution, 1775-1783
3
1775-1783
2
1783-1865
2
1856-1915
2
1862-1931
2
1945-1953
2
1953-1961
2
1969-1974
2
1980-
2
To 1964
2
1760-1789
1
1775-1865
1
17th century
1
1818-1895
1
1829-1906
1
1834-1915
1
1835-1930
1
1847-1944
1
1847?-ca. 1875
1
1865-1945
1
1865-1951
1
1869-1948
1
1870-
1
1880-1964
1
1884-1972
1
1889-1979
1
1890-1948
1
1896-1940
1
1897-1975
1
1897-1993
1
1898-1951
1
1898-1976
1
more ...