Era
18th century
4
1945-
4
Colonial period, ca. 1600-1775
4
1775-1783
3
1945-1989
2
1975-1985
2
19th century
2
Revolution, 1775-1783
2
1517-1648
1
1600-1750
1
1648-1715
1
1648-1789
1
1660-1714
1
1714-1837
1
1735?-1777
1
1744?-1819
1
1747-1792
1
1760-1789
1
1775-1865
1
1789-1815
1
17th century
1
1801-1815
1
1904-2005
1
1918-1945
1
1933-1945
1
1945-1955
1
1945-1991
1
1955-1965
1
1965-1975
1
1989-
1
20th century
1
Civil War, 1861-1865
1
To 1810
1
To 1830
1
War of 1812
1