Final answer:
False. The Northwest Territory did not include all the land west of Pennsylvania to the Mississippi River; it comprised land that became several states and parts were claimed by Quebec and other colonies.
Step-by-step explanation:
The statement that the Northwest Territory included all land west of Pennsylvania, east of the Mississippi River, and north of the Ohio River is false. The Northwest Territory, as defined by the Northwest Ordinance of 1787, included lands that would become the states of Ohio, Indiana, Illinois, Michigan, Wisconsin, and a portion of Minnesota.
Notably, Quebec claimed lands that were north of the Ohio River, while Pennsylvania, Virginia, and Connecticut had also laid claim to parts of this region. The land north of the Ohio River and east of the Mississippi River was an incorporated territory where the sale of parcels was organized into townships and sections, with specific sections set aside for schools, creating a structured approach to settlement and statehood.