The old Northwest Territory originally included areas previously known as Ohio Country and Illinois Country. As Ohio prepared for statehood, the Indiana Territory was created, reducing the Northwest Territory to approximately the size of present-day Ohio plus the eastern half of the Lower Peninsula of Michigan and the eastern tip of the Upper Peninsula and a sliver of southeastern Indiana called "The Gore".
the old northwest territory originally included areas previously known as ohio country and illinois country as ohio prepared for statehood the indiana territory was created reducing the northwest territory to approximately the size of present-day ohio plus the eastern half of the lower peninsula of michigan and the eastern tip of the upper peninsula and a sliver of southeastern indiana called "the gore"