Era
1700-1799
1
1800-1899
2
1800-1999
1
1810-1879
2
1820-1897
1
1835-1909
2
1849-1883
1
1850-1904
1
1865-
11
1873-1945
4
1873-1947
3
1882-1941
1
1883-1928
1
1890-1980
7
1893-1963
2
1895-1981
6
1897-1962
3
1897-1966
2
1897-1988
2
18th century
2
1900 - 1999
1
1900-1999
22
1909-2001
37
1910-1985
2
1916-1990
1
1917-1967
8
1921-
1
1923-2013
1
1935-
4
1936-
1
1936-2010
1
1944-
1
1960-
1
19th century
14
20th century
126
21st century
1
Civil War, 1861-1865
3
Since 1800
1
Since 1865
1