Era
20th century
85
1880-1968
64
19th century
58
1927-1993
42
21st century
40
1820-1906
35
1821-1912
33
1900-1999
30
1866-1936
28
1860-1935
20
1815-1902
19
2001
18
1929
17
2000-2099
17
1809-1852
16
1918-1945
16
1955-
16
20e siècle
15
1867-1919
14
1930-
14
1800-1899
13
1837-1930
13
1857-1945
13
1945-
13
1860-1927
11
2001-2009
11
1818-1883
10
1865-1918
10
18th century
10
1984-
10
21e siècle
10
Civil War, 1861-1865
10
United States
10
19e siècle
9
To 1865
9
1927-
8
1955-2011
8
1957-2011
8
2011
8
1933-1945
7
1960-1980
7
Colonial period, ca. 1600-1775
7
1787-1851
6
1879-1966
6
1960-
6
2005
6
1819-1884
5
1843?-1930
5
1860-1890
5
1880-1965
5
more ...