Era
Revolution, 1775-1783
5
1718-1790
3
Devonian
3
War of 1812
3
1755-1763
2
1775-1783
2
1800-1950
2
1822-1885
2
1855-
2
1861
2
19th century
2
Civil War, 1861-1865
2
Civil war
2
Ordovician
2
Paleozoic
2
Revolution
2
To 1803
2
1720-1731
1
1720s
1
1721-1808
1
1722-1805
1
1734-1820
1
1739-1775
1
1750-1815
1
1751-1838
1
1782-1866
1
1783-1848
1
1784-1850
1
1786-1836
1
1806-1863
1
1806-1867
1
1807-1870
1
1809-1865
1
1810-1883
1
1811-1885
1
1815-1872
1
1815-1886
1
1816
1
1820-1897
1
1821-1907
1
1822-1901
1
1824-1902
1
1825-1894
1
1832-1902
1
1839-1925
1
1840-1863
1
1844-1929
1
1846-1922
1
1850-1927
1
1852-1929
1
more ...