Era
20th century
19th century
8
20th century --
6
1856-1950
2
1903-1974
2
1914-1972
2
1871-1938
1
1871-1945
1
1874-1958
1
1882-1941
1
1885-1930
1
1887-1972
1
1892-
1
1892-1962
1
1896-
1
1896-1967
1
1899-1961
1
1911-1979
1
1912-
1
1917-1977
1
1919-
1
1937-
1
1945-
1
1965-1990
1
20yh century
1
Civil War, 1936-1939
1