Minnesota becomes a United States territory on…
March 1849 CE
The boundaries of the Minnesota Territory, as carved out of Iowa Territory, included the current Minnesota region and most of what will later beome Dakota Territory east of the Missouri River.
Minnesota Territory also includes portions of Wisconsin Territory that did not become part of Wisconsin, located between the Mississippi River and Wisconsin, including the Arrowhead Region.
At the time of its formation, the territory contains three cities: St. Paul, St. Anthony (now part of Minneapolis), and Stillwater.
The major territorial institutions are divided among the three: St. Paul is made the capital; ...