Era
Revolution, 1775-1783
6
Colonial period, ca. 1600-1775
4
1775-1783
3
To 1775
3
1783-1789
2
1802-1878
2
1809-1817
2
1845-1849
2
1849-1877
2
1861-1865
2
1865-1869
2
18th century
2
Civil War, 1861-1865
2
Confederation, 1783-1789
2
War of 1812
2
War with Mexico, 1845-1848
2
1745-1829
1
1751-1836
1
1760-1789
1
1775-1865
1
1783-1809
1
1783-1865
1
1789-1809
1
1789-1815
1
1800-1874
1
1809-1865
1
1812-1815
1
1815-1861
1
1822-1885
1
1857-1861
1
1869-1877
1
Civil war, 1861-1865
1
Constitutionlal period, 1789-1809
1
Revolution
1