Era
19th century
25
1860-1890
5
Civil War, 1861-1865
4
1783-1865
3
1848-1860
3
1869-1934
3
To 1848
3
1836-1902
2
1865-1921
2
1784-1864
1
1804-1886
1
1815-1861
1
1831-1888
1
1837-1876
1
1846-1850
1
1850-1950
1
1851-1887
1
1856-1903
1
1858-1919
1
1860-1926
1
1866-
1
1866-1895
1
1872-1939
1
1889-1945
1
18th century
1
1901-1909
1
1917-2014
1
1975-
1
20th century
1
21st century
1
To 1951
1