I suppose it made the free states and slave states in some way even. When Missouri became a slave state they kept the north end of the Louisiana purchase free stated and banned slavery there.
I think the correct answer is true
As Europeans moved beyond exploration and into colonization of the Americas, they brought changes to virtually every aspect of the land and its people, from trade and hunting to warfare and personal property. European goods, ideas, and diseases shaped the changing continent.
The Mason-Dixon line was created to form a <span>resolution of a border dispute involving Pennsylvania,Delaware in Colonial America and Maryland.</span>
