Era
20th century
10
18th century
5
19th century
4
Civil War, 1861-1865
4
Colonial period, ca. 1600-1775
4
1917-
3
1945-
2
Revolution, 1775-1783
2
1225?-1274
1
1473-1543
1
1789-1797
1
1797-1801
1
17th century
1
1800-1999
1
1823-1897
1
1837-1901
1
1853-1857
1
1857-1861
1
1865-1900
1
1868-1963
1
1870-1914
1
1874-1964
1
1880-1959
1
1892-1938
1
1893-1897
1
1897-1901
1
1909-1913
1
1912-1949
1
1915-
1
1918
1
1918-1938
1
1918-1945
1
1933-1945
1
1945-1953
1
1945-1989
1
1973
1
1980
1
1981
1
1985
1
1986
1
19e siècle
1
20e siècle
1
Congresses
1
To 1933
1
approximately 1217-1274
1