Improved map of the territories of Michigan and Ouisconsin, 1835.
On this day in 1818, the land that makes up current-day Wisconsin was officially declared part of the Michigan Territory. The Wisconsin Territory was established in 1836, a year after cartographer John Farmer of Detroit created this map.
via: Historical Maps Collection, Wisconsin Historical Society
As you can see part of what became Minnesota was in Wisconsin Territory. When Wisconsin became a state in 1848 the former residents of Wisconsin Territory west of the St. Croix river met in Stillwater on August 26th and decided to send Henry Sibley to Washington D.C. to advocate for a new territory which became Minnesota Territory in 1849. Sibley was the territory’s delegate to Congress from 1849-1953 and later served as the state’s first governor in 1858. Rhoda Gilman wrote a great biography of Sibley, Divided Heart.