Era
20th century
423
19th century
277
Civil War, 1861-1865
262
Revolution, 1775-1783
202
Colonial period, ca. 1600-1775
121
1979-
83
1775-1865
74
20e siècle
74
1951-
70
18th century
69
1900-1999
61
1945-1989
55
1775-1783
52
1865-1950
50
1775-1783 (Révolution)
48
1945-
48
1981-1989
48
ca 1600-1775 (Période coloniale)
46
To 1775
41
19e siècle
39
1948-
36
1815-1861
34
1980-
33
1910-1946
31
Revolution, 1910-1920
31
To 1848
31
17th century
29
1933-1945
29
1800-1899
28
1948-1980
27
French and Indian War, 1754-1763
27
Since 1979
24
War of 1812
24
1600-1775
23
1861-1865
23
1959-1990
23
1979-1990
23
1989-
23
1861-1865 (Guerre de Sécession)
22
1865-1877
21
1918-
20
1959-
20
Since 1900
20
1783-1865
19
1865-
19
1929
19
Revolution, 1959
19
1786-1836
18
1774-1809
16
1946-
16
more ...