Era
20th century
301
1945-1989
288
1989-
186
1951-
133
1865-1950
126
1815-1861
123
1900-1999
106
19th century
101
20e siècle
87
1925-1968
84
Civil War, 1861-1865
77
1782-1852
69
1775-1865
62
2001-2009
58
1775-1783
56
1777-1852
56
1933-1945
54
1908-1957
53
Since 1945
53
1849-1877
48
1932-2009
43
1940-2020
39
1861-1865
38
1917-1963
37
1963-1969
37
1783-1865
36
1901-1953
36
Revolution, 1775-1783
35
1782-1850
33
1800-1899
33
1945-1953
33
1736-1799
32
19e siècle
32
1936-
31
1936-2018
31
1943-
31
21st century
31
1945-
30
To 1865
30
1809-1865
29
1946-
29
1811-1874
28
1909-1998
28
1981-1989
28
2008
27
Since 1951
26
1783-1789
25
1940-
25
1865-1933
23
1993-2001
23
more ...