Era
20th century
448
19th century
131
1900-1999
130
1908-1960
34
1800-1899
28
1811-1896
28
1902-1967
25
1897-1962
23
21st century
19
1924-1987
17
1835-1910
16
1858-1932
14
1948-
12
1800-1999
11
18th century
11
1900 - 1999
9
1894-1967
8
1934-2014
8
Colonial period, ca. 1600-1775
8
1783-1850
7
1917-2000
7
1933-2019
7
2000-2099
7
1908-1997
6
1944-
6
Revolutionary period, 1775-1783
6
1812-1885
5
1818-1895
5
1900-2099
5
1909-1984
5
1929-
5
1868-1963
4
1915-1998
4
1783-1865
3
1800 - 1899
3
1804-1864
3
1819-1892
3
1843-1916
3
1865-
3
1901-1981
3
1913-1980
3
Civil War, 1861-1865
3
Geschichte
3
-1865
2
1600-1899
2
1700-1899
2
1723-1792
2
1783-1899
2
17th century
2
1800?-1831
2
more ...