Era
1850
6
1857
5
19th century
5
1845
4
1859
4
1860
4
1861
4
1792-1868
3
1836
3
1854
3
1855
3
1858
3
1864
3
18th century
3
Civil War, 1861-1865
3
1794-1871
2
1840
2
1846
2
1849
2
1851
2
1856
2
To 1863
2
1715
1
1737
1
1752-1832
1
1768-1846
1
1775-1865
1
1788-1847
1
1792-1865
1
1793-1880
1
1796-1850
1
1796-1865
1
1797-1867
1
1798-1870
1
17th century
1
1805-1879
1
1816-1901
1
1833
1
1834
1
1837
1
1838
1
1848
1
1854-1861
1
1857-1861
1
1861-1865
1
1863
1
1863?
1
To 1964
1