Era
20e siècle
4
20th century
4
19th century
3
Revolution, 1775-1783
3
1600-1783
2
1700-1899
2
1775-1783 (Révolution)
2
18th century
2
1900-1999
2
Colonial period, ca. 1600-1775
2
1775-1783
1
1798-1863
1
1800-1999
1
1839-1906
1
1861-1865
1
1861-1865 (Guerre de Sécession)
1
1875-1918
1
1882-1945
1
1900-2099
1
1922-2000
1
1946-
1
19e siècle
1
21e siècle
1
21st century
1
Civil War, 1861-1865
1
Geschichte 1890-1945
1
Pennsylvania
1
approximately 1823-1896
1
ca 1600-1775 (Période coloniale)
1