Era
1790-1856
1
1792-1868
1
1795-1866
1
1796-1865
1
1798-1858
2
1798-1870
1
1804-1876
2
1806-1881
1
1807-1864
2
1811-1864
1
1834
1
1841
1
1845
3
1845-1849
1
1848
1
1849
2
1850
2
1852
1
1853
1
1853-1857
1
1854
1
1854-1861
4
1855
2
1856
6
1857
4
1857-1861
1
1858
2
1859
2
1860
8
1861
7
1862
1
1863
2
1867
1
1868
1
19th century
1
John Brown's Raid, 1859
1
d. 1859
2