Era
20th century
46
19th century
24
1900-1999
17
Colonial period, ca. 1600-1775
13
1835-1910
12
21st century
11
1600-1775
10
1800-1899
9
To 1775
9
18th century
8
2000-2099
8
1857-1941
7
1941-1955
7
1919-2010
6
1942-
5
1961-
5
1961-1970
5
1564-1616
4
1696?-1769
4
1764
4
1908-1960
4
Civil War, 1861-1865
4
1537-1553
3
16th century
3
1700-1799
3
1939-1945
3
1958-
3
1970-
3
Civil War, 1642-1649
3
1573-1610
2
15th century
2
1619-1682
2
1644-1718
2
1763-1791 or 1792
2
1787
2
1795
2
17th century
2
1800
2
1818
2
1828-1905
2
1860-1937
2
1862-1930
2
1897-
2
1941-
2
1950-
2
1981-1990
2
1990-
2
2000-2020
2
20e siècle
2
Revolution, 1775-1783
2
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