Era
Colonial period, ca. 1600-1775
14
19th century
12
Civil War, 1861-1865
10
20th century
8
Revolution, 1775-1783
7
Civil War
6
Period
5
1809-1865
3
1648-1789
2
1706-1790
2
1756-1791
2
1757-1834
2
1775-1865
2
1784-1850
2
1809-1817
2
1868-1878
2
1914-
2
Insurrection, 1868
2
Revolution
2
Revolution (1775-1783)
2
War of 1812
2
ca. 1600-1775
2
1685-1750
1
1714-1738
1
1732-1799
1
1775
1
1775-1783
1
1777-1852
1
1786-1836
1
1789-1900
1
1812-1815
1
1815-1861
1
1819-1892
1
1821-
1
1825-1874
1
1837-1901
1
1843
1
1847
1
1848
1
1848-1920
1
1854
1
1856
1
1863-1933
1
1865-
1
1865-1900
1
1893-1897
1
1897-1901
1
18th century
1
1911-
1
1917-
1
more ...