Era
1854-1861
167
1856
137
1857-1861
133
1860
119
1858
101
1854
76
1853-1857
74
1850
72
1849-1853
70
1861-1865
66
1775-1865
45
1848
43
1859
39
1852
36
To 1865
31
Civil War, 1861-1865
28
1846-1850
26
1861
26
1836
24
1837
24
1839
24
1851
24
1845
23
1840
22
John Brown's Raid, 1859
22
1813-1861
21
1809-1865
20
1862
20
1815-1861
19
1838
19
1845-1849
19
1847
19
1855
19
1864
19
1849
18
1841-1845
17
1800-1859
16
1835
16
1846
16
1857
16
1833
15
1849-1861
15
1844
14
1865
14
1834
13
1820
12
1863
12
1777-1840
11
1777-1852
11
1780-1842
11
more ...