Era
20th century
20
19th century
18
Colonial period, ca. 1600-1775
18
1898-1951
9
1775-1865
8
1600-1775
5
1800-1899
4
1865-1950
4
Revolution, 1775-1783
4
To 1898
4
1769-1828
3
1865-1898
3
Civil War, 1861-1865
3
1600 - 1775
2
1820-1903
2
1865 - 1950
2
1909
2
1951-
2
1600 - 1783
1
1600-1783
1
1600-1898
1
1600-1899
1
1732-1799
1
1733-1804
1
1755-1798
1
1756-1836
1
1757
1
1757-1832
1
1758-1843
1
1764-1836
1
1766-1810
1
1769-1847
1
1771-1834
1
1775 - 1783
1
1783-1859
1
1798-1866
1
1803-1889
1
1807
1
1810-1891
1
1812-1881
1
1814-1873
1
1821-1879
1
1823-1878
1
1825-1911
1
1834-1904
1
1837-1917
1
1838-1915
1
1841-1918
1
1844
1
1861 - 1865
1
more ...