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February 28, 1847 -
SANGAMON lost to MENARD.
(Ill. Laws 1846-1847, priv. and spec., p. 39)
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March 02, 1843 -
February 28, 1847
SANGAMON lost to MENARD.
(Ill. Laws 1842-1843, p. 94)
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March 02, 1839 -
March 02, 1843
SANGAMON lost to MACON.
(Ill. Laws 1838-1839, p. 265)
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February 15, 1839 -
March 02, 1839
SANGAMON lost to creation of DANE (now CHRISTIAN), LOGAN, and MENARD.
(Ill. Laws 1838-1839, pp. 104-107)
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December 23, 1824 -
February 15, 1839
SANGAMON lost to creation of Non-County Area 6.
(Ill. Laws 1824-1825, pp. 20-22)
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January 31, 1823 -
December 23, 1824
SANGAMON lost to creation of MORGAN.
(Ill. Laws 1822-1823, pp. 108-109; Ill. Laws 1834-1835, pp. 62-63)
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January 30, 1821 -
January 31, 1823
SANGAMON created from BOND and MADISON.
(Ill. Laws 1820-1821, pp. 45-46)
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