Era
Civil War, 1861-1865
8
Revolution, 1775-1783
8
Colonial period, ca. 1600-1775
6
1644-1718
4
20th century
4
1829-1894
3
19th century
3
1775-1865
2
1783-1872
2
1838-1922
2
1843-1916
2
Revolution
2
To 1775
2
15-18th centuries
1
1670-1727
1
1680-1752
1
1690-1734
1
1709-1796
1
1718?-1783
1
1726-1793
1
1731-1791
1
1731-1795
1
1734-1806
1
1738-1818
1
1745-1781
1
1745-1825
1
1748-1836
1
1750-1835
1
1754-1841
1
1763-1847
1
1766-1844
1
1766-1847
1
1768-1854
1
1772-1848
1
1775-1783
1
1780-1849
1
1780-1869
1
1780-1875
1
1783-1848
1
1783-1859
1
1785-1852
1
1786-1832
1
1787-1874
1
1789-1865
1
1794-1885
1
1795-1858
1
1796-1865
1
1796-1872
1
1797-1874
1
1797-1884
1
more ...