Era
20th century
312
19th century
153
1900-1999
88
21st century
54
2000-2099
31
1800-1899
30
To 1898
26
1813-1887
24
1900 - 1999
23
Civil War, 1861-1865
21
Revolution, 1775-1783
21
1891-1980
19
18th century
15
1835-1907
14
1800 - 1899
12
1865-1898
11
1834-
10
1880-1966
10
1898-1951
10
1939-1945
9
1896-
8
20e siècle
8
1834-1897
7
1892-1982
7
1946-
7
1837-1913
6
1861-1916
6
1948-
6
2000 - 2099
6
2001
6
Colonial period, ca. 1600-1775
6
1800-1999
5
1818-1895
5
1828-1903
5
1838-1927
5
1858-1944
5
1860-1945
5
1931-
5
1935-
5
1945-1989
5
1950-
5
1951-
5
1957-
5
Civil War
5
active 1878-1905
5
1700-1799
4
1795-1875
4
17th century
4
1809-1896
4
1819-1892
4
more ...