Era
20th century
48
1900-1999
21
19th century
16
21st century
6
1800-1999
4
18th century
4
1810-1898
3
1800-1899
2
1831-1908
2
1837-1906
2
1879-1957
2
1935-
2
2000-2099
2
1700-1899
1
1723-1794
1
1743-1826
1
1754-1763
1
1763
1
1788-1866
1
17th century
1
1800 - 1999
1
1803-1882
1
1818-1883
1
1859-1952
1
1865-1918
1
1885-1950
1
1899-1977
1
1900-
1
1900-2099
1
1940-2019
1
1942-
1
1945-
1
1945-1970
1
1945-1989
1
1952-
1
1955-1965
1
1960-1980
1
Civil War, 1861-1865
1
Colonial period, ca. 1600-1775
1
French and Indian War, 1754-1763
1
Since 1945
1