Historical Period
20th century
11
Civil War, 1861-1865
8
1809-1865
3
1955-
3
1956-
3
19th century
3
21st century
3
1940-1980
2
1945-
2
1960-1980
2
1980-
2
To 1500
2
To 640 A.D.
2
-579
1
1473-1543
1
1564-1616
1
16th century
1
1797-1851
1
1800-1859
1
1807-1870
1
1810-1889
1
1838-1863
1
1880-1968
1
1892-1940
1
1912-
1
1912-2016
1
1918-2004
1
1923-2010
1
1930-
1
1932-2011
1
1935-1977
1
1936-2015
1
1939-
1
1958-
1
1958-2009
1
1969-
1
1973-
1
1980-2020
1
Empire, 30 B.C.-476 A.D.
1
Hasta 1500
1
To 332 B.C.
1
d. 1938
1