Era
20th century
124
21st century
47
20e siècle
29
1900-1999
25
1933-1945
21
19th century
18
Civil War, 1861-1865
18
21e siècle
12
2000-2099
10
1882-1945
9
1969-
9
1809-1865
8
1884-1962
8
1945-
8
2001-2009
8
1917-1963
7
1946-
7
1994-
6
19e siècle
6
Revolution, 1775-1783
6
1564-1616
5
1807-1870, USMA 1829
5
1809-1882
5
1858-1919
5
1879-1955
5
1908-1973
5
1919-1933
5
1938-
5
1944-
5
1945-1989
5
1947-
5
1951-
5
1952-
5
Bombardment, 1945
5
1706-1790
4
17th century
4
1800-1999
4
1867-1959
4
1899-1974
4
1901-1971
4
1926-1945
4
1929
4
1935-
4
1941-
4
2001-2021
4
Civil War, 1994
4
Colonial period, ca. 1600-1775
4
To 332 B.C.
4
-632
3
16th century
3
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