Era
19th century
59
Civil War, 1861-1865
43
1865-1950
38
20th century
32
1800-1899
27
1775-1865
20
1865-1877
15
1800-1950
10
1900-1999
10
1951-
10
1775-1899
8
1861-1865
7
1800-1999
6
1857-1861
6
Since 1865
5
1809-1865
4
1861-1950
4
1865-1898
4
1865-1945
4
1865-1999
4
Since 1900
4
To 1775
4
1815-1861
3
1865-1933
3
1767-1845
2
1775 - 1877
2
1807-1870
2
1818-1895
2
1849-1877
2
1856-1915
2
1861 - 1950
2
1863-1877
2
1865-1900
2
1865-1951
2
1868-1963
2
18th century
2
1908-1973
2
1933-1945
2
1945-1989
2
2000-2099
2
21st century
2
Colonial period, ca. 1600-1775
2
Geschichte 1850-1900
2
Geschichte 1860-1861
2
Since 1951
2
To 1899
2
1600-1775
1
1621-1683
1
1700-1899
1
1751-1836
1
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