An act of Congress was approved dividing the Territory of Wisconsin and establishing the Territory of Iowa west of the Mississippi, effective July 3; one passage states that in June 1838 that portion west of the Mississippi was by act of Congress organized into the Territory of Iowa. The same act set apart seventy-two sections (two townships) for the support of a university.

The evidence

• “Strong was commissioned attorney of the United States for the Ter. ritory. By an act of congress, approved June 12, 1838, to divide the Territory of Wisconsin,, and to establish a Territorial government west of the Mississippi, it was provided that from and. after the third day of July following, all that part of Wisconsin Territory lying west of that river and west of a line drawn due north from its headwaters or sources to the Territorial line, for the purposes of a Territorial government should be set apart and known by the name of Iowa. It was further enacted that the Territory of Wisconsin should thereafter extend westward only to the Mississippi.”

  1879-history-of-rock-county/01-wisconsin-antiquities-indians-territory.md, PDF p. 42 / book p. 46

  Butterfield, C. W., et al. The History of Rock County, Wisconsin: its early settlement, growth, development, resources, etc. Chicago: Western Historical Company, 1879. Cornell University Library via the Internet Archive, archive.org/details/cu31924028871585.

  Grade A: Found on a page of one of our sources

  

• “ory. The Wisconsin Territory maintained those boundaries until May 29, 1848, when Wisconsin achieved statehood. The territorial capital was briefly at Belmont but soon relocated to Madison . Moses M. Strong, History of the Territory of Wisconsin, from 1836 to 1848 (Madison, WI: Democrat Printing, 1885), 165-595; "An Act Establishing the Territorial Government of Wisconsin," 20 April 1836, Statutes at Large of the United States 5 (1856):10-16; "An Act to Divide the Territory of Wisconsin and to Establish the Territorial Government of Iowa," 12 June 1838, Statutes at Large of the United States 5 (1856):235-41; "An Act to Enable the People of Wisconsin Territory to Form a Constitution and State Government, and for the Admission of Such State into the Union," 6 August 1846, Statutes at Large of the United States 9 (1862):56-58; "An Act for the Admission of the State of Wisconsin into the Union," 3 March 1847, Statutes at Large of the United States 9 (1862):178-79; "An Act for the Admission of the State of Wisconsin into the Union," 29 May 1848, Statut”

  https://papersofabrahamlincoln.org/places/x4013093

  papersofabrahamlincoln.org, https://papersofabrahamlincoln.org/places/x4013093

  Grade B: Found on an institutional web page