Era
20th century
42
19th century
38
21st century
31
20e siècle
28
1991-
26
19e siècle
25
Since 1991
19
1801-1917
17
1800-1899
15
2000-2099
15
1800-1999
13
1900-1999
13
21e siècle
13
19e siècle
7
1800-1917
6
20e siècle
5
1894-1917
4
1917-1921 (Révolution)
4
1952-
4
21e siècle
4
Revolution, 1917-1921
4
1818-1883
3
1821-1881
3
1853-1900
3
1859-1918
3
1870-1924
3
1900-2099
3
1917 (Révolution)
3
1917-1936
3
February Revolution, 1917
3
1533-1613
2
1794-1856
2
1801 - 1917
2
1801-1999
2
1814-1876
2
1825-1855
2
1828-1910
2
1867-1931
2
1890-1917
2
1894-1999
2
18th century
2
1900-1910
2
1904-1914
2
1905-1907 (Révolution)
2
1910-1920
2
1991—
2
Revolution, 1905-1907
2
(1821-1881)
1
(1863-1920;
1
(1867-1931)
1
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