Category Archives: Prehistory

Sangamo Township

Before Sangamon County was created in January 1821, its territory was divided between Madison and Bond counties (mostly in Madison). Between the arrival of the first settler in 1817 and the ultimate formation of the county in 1821, a significant … Continue reading

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Sangamon Stage

The Sangamon Stage is a geological term used to designate one of the intervals between the successive advances of glacial ice across the landscape of North America. Also known as the Sangamon Interglacial, the period is so named because the … Continue reading

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