Era
1857-1861
9
1856
5
1861-1865
5
Civil War, 1861-1865
5
1854-1861
4
1860
4
Civil War
4
1775-1865
3
1859
3
1861
3
John Brown's Raid, 1859
3
1780-1842
2
1836
2
1853-1857
2
1858
2
19th century
2
1760-1789
1
1784-1870
1
1791-1868
1
1795-1858
1
1797-1874
1
1798-1885
1
1800-1859
1
1809-1865
1
1829-1837
1
1830
1
1837
1
1839
1
1842
1
1846
1
1846-1850
1
1848
1
1850
1
1854
1
1862-1863
1
1864
1
1868
1
1870
1
1885-1908
1
Revolution
1
To 1775
1
To 1908
1