Era
19th century
16
To 1848
7
1848-1860
6
1860-1890
4
War of 1812
4
Civil War, 1861-1865
3
1510-1554
2
1785-1848
2
1819-approximately 1870
2
1848-
2
1934-
2
Indian occupation, 1973
2
Pennsylvanian
2
1768-1813
1
1779-1813
1
1783?-1842
1
1791-1874
1
1809-1868
1
1810 or 1811-1889
1
1816-1885
1
1820-1908
1
1822-1897
1
1832-1913
1
1833-1917
1
1834-1908
1
1836-1893
1
1836-1926
1
1843-1942
1
1845-1936
1
1850-1937
1
1872-1932
1
1876-1953
1
1887-1973
1
1889-1966
1
1911-2006
1
1944-
1
1946-
1
1955-
1
20th century
1
Colonial period, ca. 1600-1775
1
Indian occupation, 1969-1971
1
Vietnam War, 1961-1975
1