Era
1913-1921
6
20th century
6
1775-1783
5
1900-1999
5
1861-1865
4
1933-1945
4
Civil War, 1861-1865
4
1600-1775
3
1743-1826
3
19th century
3
Colonial period, ca. 1600-1775
3
To 1775
3
1600 - 1775
2
1775-1865
2
1783-1809
2
1846 - 1848
2
1846-1848
2
1856-1924
2
1865 - 1921
2
1865-1898
2
1865-1921
2
1921-1923
2
1933-1953
2
1945-
2
1945-1953
2
1964-1975
2
1989-1993
2
21st century
2
Revolution, 1775-1783
2
-1283
1
1488-1563
1
1700 - 1799
1
1700-1799
1
1730-1796
1
1744-1798
1
1752-1816
1
1763-1834
1
1772-1833
1
1772-1883
1
1775 - 1783
1
1775 - 1809
1
1775 - 1865
1
1775-1809
1
1779-1851
1
1782-1850
1
1783-1815
1
1789 - 1799
1
1789 - 1809
1
1789-1809
1
1800-1899
1
more ...