Era
20th century
432
1900-1999
169
21st century
158
19th century
149
20e siècle
144
1975-
116
2000-2099
75
19e siècle
60
1800-1899
55
Since 1975
50
1980-2020
41
1877-1964
39
21e siècle
38
Civil War, 1861-1865
38
1945-1989
35
To 1964
29
18th century
24
1946-
24
1980-
23
1989-
22
1941-1955
19
1929-1968
18
2001-2009
18
1993-
16
20e siècle
16
1861-1865
15
1863-1877
15
1868-1963
15
1945-
15
1924-1987
14
Jusqu'à 1964
14
Since 1900
14
1925-1965
13
1800-1999
12
2009-2017
12
1783-1865
11
1861-1865 (Guerre de Sécession)
11
1961-
11
2017-2021
11
18e siècle
10
1964-
10
1993-2001
10
21e siècle
10
Since 1980
10
1809-1865
9
1818-1895
9
1933-1945
9
Revolution, 1775-1783
9
1862-1931
8
1900 - 1999
8
more ...