Era
To 1964
23
1975-
20
20th century
16
19th century
12
1964-1975
9
1917-
5
1960-1980
5
19e siècle
5
1800-1899
4
1865-1918
4
1964-
4
20e siècle
4
To 1863
4
To 1865
4
1818-1895
3
1945-
3
1980-
3
Civil War, 1861-1865
3
1854
2
18th century
2
1900-1999
2
1929
2
1933-1945
2
1948-
2
1775-1865
1
1783-1865
1
1789-1883
1
17th century
1
1800-1999
1
1811-1896
1
1819-1891
1
1822
1
1831-1921
1
1832-
1
1837
1
1839
1
1839-1913
1
1845
1
1849-1877
1
1853-1857
1
1857-1861
1
1861-1865 (Guerre de Sécession)
1
1863
1
1863-1877
1
1863-1943
1
1865-1900
1
1865-1933
1
1865-1945
1
1877-1881
1
1877-1964
1
more ...