Era
Civil War, 1861-1865
36
20th century
27
19th century
25
1732-1799
9
1796-1872
6
Revolution, 1775-1783
6
Civil War
5
Colonial period, ca. 1600-1775
5
1783-1865
4
17th century
4
1800-1899
4
19e siècle
4
21st century
4
1857-1926
3
1900-1999
3
1964-
3
1778-1846
2
1800-1950
2
1817-1895
2
1854-1926
2
1861-1865
2
1865-1898
2
1865-1918
2
1868-1952
2
1890-1969
2
1896-
2
18th century
2
1901-1990
2
1914-1918
2
1918-1920
2
1920-
2
1933-1945
2
1939-1945
2
2000-2099
2
20e siècle
2
Allied intervention, 1918-1920
2
Revolution
2
To 1775
2
1644-1718
1
1706-1790
1
1714-1789
1
1743-1826
1
1747-1801
1
1751-1823
1
1755-1834
1
1756-1843
1
1757-1834
1
1765-1815
1
1770-1861
1
1772-1818
1
more ...