Cretaceous 16
1775-1865 15
19th century 14
Civil War, 1861-1865 9
Colonial period, ca. 1600-1775 8
1865-1950 6
Revolution, 1775-1783 6
1782-1850 4
1815-1861 4
Eocene 4
Tertiary 4
18th century 3
20th century 3
21st century 3
Cenozoic 3
Quaternary 3
1757-1824 2
1818-1902 2
1847-1918 2
Neogene 2
Paleogene 2
To 1775 2
active 1834-1864 2
1723-1795 1
1788-1828 1
1790-1874 1
1792-1873 1
1800-1876 1
1807-1864 1
1817-1874 1
1822-1890 1
1822-1913 1
1842-1884 1
1848-1912 1
1863-1877 1
1903-1942 1
1950-1986 1
1968- 1
2011 1
Holocene 1
Paleocene 1
Pleistocene 1
Siege, 1780 1
Siege, 1863 1
Slave Insurrection, 1822 1
Spanish colony, 1565-1763 1
To 1791 1
To 1865 1
approximately 1767-1822 1