@oddlatlong: Illinois was supposed to end on a straight line from the southern tip of Lake Michigan. In 1818, Nathaniel Pope, the territory's delegate in Congress, got the line moved about 60 miles north so Illinois would have a port on the lake, and that strip took in Chicago, Rockford and about 8,500 square miles. In the 1840s, people up there voted to join Wisconsin; the votes didn't count. Today about two out of three Illinoisans live above the old line. Should Chicago be in Wisconsin? Sources: Illinois State Historical Society; WPR; US Census 2020. #chicago #illinois #wisconsin #geography #History