Answer: The Northwest Ordinance of 1789.
Step-by-step explanation:
The Northwest Ordinance of 1789 stated that the election of representatives for a territorial general assembly was allowed only after having reached 5,000 free, male inhabitants. At least three and up to five states would be set in the territory, and only after achieving a population of 60,000 it would be accepted in the Continental Congress.
The ordinance also called for a public university and prohibited slavery, even though it did include a fugitive slave clause.