Era
20th century
184
19th century
159
18th century
37
20e siècle
33
1900-1999
31
19e siècle
25
1800-1899
15
1959-
15
21st century
14
1800-1999
13
Civil War, 1861-1865
13
1738-1820
12
1732-1799
11
17th-18th centuries
9
Colonial period, ca. 1600-1775
9
17th century
8
Revolution, 1775-1783
8
1743-1826
7
1844-1916
7
1943-
7
1946-
7
1940-
6
1741-1827
5
1872-1951
5
Civil war
5
1700-1899
4
1706-1790
4
1780-1849
4
1796-1872
4
18e siècle
4
1912-
4
1939-
4
1941-
4
21e siècle
4
To 1775
4
1644-1718
3
1773-1838
3
1778-1860
3
1783-1872
3
1799-1885
3
1800-1870
3
1811-1843
3
1834-1903
3
1844-1926
3
1860-1932
3
1861-1865 (Guerre de Sécession)
3
1871-1951
3
1876
3
1891-1979
3
1893-1967
3
more ...