Era
20th century
58
Revolution, 1775-1783
32
19th century
30
18th century
29
Colonial period, ca. 1600-1775
22
1775-1783
12
17th century
10
To 1775
10
1760-1789
9
1933-1945
7
1874-1965
6
1936-1945
5
1945-
5
1861-1865
4
1882-1945
4
1918-1945
4
2001-2009
4
21st century
4
Civil War, 1861-1865
4
To 1865
4
War of 1812
4
1660-1714
3
1714-1837
3
1760-1820
3
1882-1941
3
1945-1953
3
1945-1955
3
To 1900
3
1564-1616
2
1809-1865
2
1819-1891
2
1843-1916
2
1885-1972
2
1892-1983
2
1911-1988
2
1917-1945
2
1945-1989
2
French and Indian War, 1754-1763
2
World War, 1939-1945
2
-1769
1
1469-1527
1
1517-1648
1
1600-1750
1
1611-1677
1
1625-1649
1
1644-1718
1
1648-1715
1
1649-1660
1
1660-1688
1
16th-18th centuries
1
more ...