Era
19th century
32
Civil War, 1861-1865
21
1775-1865
18
1865-1950
17
20th century
17
1951-
14
1775-1899
8
1800-1899
8
1783-1865
4
1900-1999
4
1933-1945
4
Since 1951
4
1945-1989
3
1948
3
1800-1950
2
1815-1861
2
1840-1889
2
1849-1877
2
1861 - 1950
2
1861-1865
2
1865-1933
2
1901-1953
2
1945-
2
2000-2099
2
21st century
2
To 1775
2
1775-1950
1
1783-1933
1
1809-1865
1
1845-1861
1
1850-1889
1
1856-1922
1
1865-1877
1
1865-1900
1
1865-1945
1
1865-1999
1
1898-1974
1
18th century
1
1900 - 1999
1
1914-1991
1
1917-1963
1
1918-1961
1
1925-1968
1
1929-1968
1
1940-
1
1945-1953
1
1946-
1
1961-1963
1
2001-2009
1
Geschichte 1775-1865
1
more ...