| U.S. County Formation from 1860-1869 An Animated Map showing the overall State and County boundry changes between the years 1860 to 1869 |
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[1790-1799]
[1800-1809]
[1810-1819]
[1820-1829]
[1830-1839]
[1840-1849]
[1850-1859]
[1860-1869]
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