Era
20th century
117
19th century
61
1900-1999
43
21st century
35
2000-2099
22
1889-1976
21
18th century
20
To 1500
15
1800-1899
11
Civil War, 1861-1865
11
17th century
10
1800-1999
8
1945-
7
1939-1945
6
1950-
5
1644-1912
4
1863-1947
4
1915-1968
4
960-1644
4
Since 1900
4
World War, 1914-1918
4
1600-1699
3
1700-1799
3
1724-1792
3
1844-1900
3
1900-2099
3
1970-
3
1975-
3
1980-
3
1981-2001
3
1989-
3
Colonial period, ca. 1600-1775
3
Geschichte
3
Since 1950
3
To 146 B.C.
3
World War, 1939-1945
3
1700-1899
2
1765-1947
2
1800-2099
2
1809-1865
2
1818-1883
2
1859-1952
2
1882-1941
2
1885-1959
2
1895-1990
2
1897-1962
2
1898-1979
2
1901-1976
2
1904-1967
2
1912-1994
2
more ...