Era
20th century
273
1965-
87
19th century
85
1945-
68
20e siècle
58
1900-1999
53
1945-1964
52
21st century
22
19e siècle
17
18th century
15
1859-1952
13
1800-1899
12
1800-1999
9
Civil War, 1861-1865
9
1743-1826
8
United States
8
1950-
7
Since 1965
7
1865-1918
5
1933-
5
1961-1969
5
Geschichte
5
Since 1945
5
1787-1870
4
1796-1859
4
1855-1902
4
1917-
4
1918-1961
4
1928-
4
1960-1980
4
1970-
4
1700-1799
3
1746-1827
3
17th century
3
1803-1876
3
1807-1870, USMA 1829
3
1811-1900
3
1822-1885, USMA 1843
3
1870-1952
3
1917-1963
3
1917-2015
3
1943-
3
1946-
3
1960-
3
1976-
3
1980-1993
3
1980-2020
3
1981-1993
3
2000-2099
3
Colonial period, ca. 1600-1775
3
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