Turning Points
in Wisconsin History
The Creation of Wisconsin Territory
With the decline of British influence after the War of 1812, the population of the Great Lakes region increased dramatically. New territories were created from old, and the most populous ones became states. Wisconsin was successively part of the original Northwest Territory (1788-1800), Indiana Territory (1800-1809), Illinois Territory (1809-1818), and Michigan Territory (1818-1836) before it became a territory in its own right (1836-1848).
By 1818 the boundaries of the Michigan Territory had been extended westward to the Mississippi River. Out of the area beyond lower Michigan were created three counties to administer local government: Crawford County in the west with... more...