180 years ago Michigan resolved a long-standing dispute with Ohio regarding who owned the disputed "Toledo Strip". For those of you not aware of this dispute, it comes ultimately out of cartography. Way back when, it was decided that Michigan's lower border would be determined based on the southernmost border of Lake Michigan.
By 1836, it was clear that the cartography was a bit off, and that based on earlier calculations, Michigan's borders were farther north than further believed. This pushed the Glass City of Toledo into Ohio. Michigan took the principled position that the rule was that the map should be adjusted so that Michigan was not punished for crappy
reffing cartogrophy. Ohio was dickish about it, and on a technicality claimed ownership of Toledo - and blocked Michigan's application for statehood on this basis.
This calumny would not stand, and Ohio and Michigan's respective militias entered what is known as either the Toledo War or the Michigan-Ohio War. Shots were fired (and, apparently, a stray hog was mortally wounded), and ultimately Congress intervened. Michigan ceded the Toledo Strip, and in turn was rewarded the entire U.P. Seems like a good trade in retrospect.
While at first it seemed a bad idea to give up a growing city for an "expanse of wasteland", the discovery of copper in the U.P. (along with rich timber resources) made the idea seem better from the perspective of the Great Lakes State.
So the point of this post? Jebus, it's 180 years, and we got the better of The Buckeye State. I promise not to repost this story for 20 years.