Era
1857-1861
78
1854-1861
67
1861-1865
66
1856
38
1860
31
Civil War, 1861-1865
26
1853-1857
23
19th century
21
1775-1865
20
1850
18
1846-1850
15
1849-1861
13
1845-1849
12
Civil War
12
1809-1865
11
1849-1853
11
1859
11
1861
10
1862
9
1863
9
1815-1861
8
1858
7
1783-1865
6
To 1865
6
1848
5
1851
5
1855
5
1857
5
18th century
5
John Brown's Raid, 1859
5
1732-1799
4
1743-1826
4
1775-1783
4
1847
4
1854
4
Civil war
4
Controversial literature, 1854
4
1782-1866
3
1784-1850
3
1791-1868
3
1800-1874
3
1809-1817
3
1813-1861
3
1821-1875
3
1829-1837
3
1864
3
19e siècle
3
Revolution, 1775-1783
3
To 1863
3
-1888
2
more ...