Era
20th century
5
19th century
2
Civil War, 1861-1865
2
1710-1778
1
1722-1781
1
1724-1805
1
1735-1800
1
1744-1775
1
1854-1900
1
1864-1934
1
1865-1939
1
1882-1941
1
1906-1989
1
1919-1968
1
1938-
1
1945-1989
1
1948-
1
1952-
1
1953-
1
1955-1965
1
1960
1
Cretaceous
1
Edo period, 1600-1868
1
Persian Gulf War, 1991
1
Revolution, 1775-1783
1