Photo from the Illinois Digital Archives - A Service of the Illinois State Library and Office of Secretary of State |
- Illinois’ original northern border was a line drawn from the southern tip of Lake Michigan west to the Mississippi River. Just before statehood Illinois’ territorial delegate to Washington, Nathaniel Pope, convinced Congress to move the line 40 miles north into what would have become southern Wisconsin. This move gave Illinois a port on the Great Lakes. Two hundred years later, this area of the state includes 14 counties and around 60% of Illinois’ population.