Era
20th century
15
1818-1883
6
1891-1937
4
1997-2007
4
21st century
4
1820-1895
3
1945-
3
1979-
3
1997-
3
1834-1896
2
1918-1933
2
1945-1964
2
1994-
2
1478-1535
1
1564-1616
1
1712-1778
1
1804-1872
1
1815-1898
1
1849-1936
1
1856-1941
1
1858-1943,
1
1859-1947
1
1868-1916
1
1870-1924
1
1891-1937,
1
1892-1940
1
1895-1975
1
1896-1980
1
18th century
1
1902-1994
1
1906-1983
1
1907-1937
1
1910-1921
1
1915-1964
1
1922-
1
1939-
1
1964-
1
1964-1979
1
1968-1998
1
1969-
1
1970-
1
1971-
1
1979-1997
1
1985-1995
1
19th century
1
20TH CENTURY
1
384-322 B.C.
1
Civil War, 1936-1939
1
Early modern (to 1700)
1
Revolution, 1848-1849
1