Era
1918-1945
40
19th century
40
20th century
29
Revolution, 1775-1783
29
To 1865
27
Colonial period, ca. 1600-1775
26
18th century
22
Revolution
16
1918-
12
Since 1918
11
1865-1918
8
1917-1945
8
1929
8
1945-
7
1775-1865
6
Civil War, 1861-1865
6
To 1775
6
1952-
5
Jusqu'à 1865
5
1700-1799
4
17th century
4
1815-1861
4
1917-
4
1933-1945
4
1066-1485
3
1801-1809
3
1865-
3
1917-1936
3
1918-1959
3
1919-1933
3
19e siècle
3
Since 1952
3
16e siècle
2
16th century
2
1728-1797
2
1745-1825
2
1783-1865
2
1821-1900
2
1853-1857
2
1865-1933
2
1867-
2
18e siècle
2
1900-1999
2
1901-1909
2
1901-1953
2
1905-1978
2
1914-1918
2
1918-1932
2
1918-1933
2
1918-1974
2
more ...