Northwest, Old.

The Northwest Territory was created by the Ordinance of 1787 and consisted of land between the Ohio River, the Mississippi River, and the Great Lakes. In 1800 the Indiana Territory was separated from the Northwest Territory, and two years later the present state of Michigan was added to the Indiana Territory. In 1803 the Northwest Territory ceased to exist with the admission of Ohio as a state.

From the description of Papers and documents, 1721-1802 (bulk 1780-1801). (Indiana Historical Society Library). WorldCat record id: 29168230