Northwest ordinance was founded in July 13, 1787 and its primary aim was to ensure and organize the methods necessary for a state to be admitted into the Union and ensuring the conditions were met.
According to the Northwest Ordinance, a territory could become a state when it had 60,000 people . Such state would then be considered by the Congress and subsequently admitted.
Explanation: The Missouri Compromise was a US federal statute that allowed Missouri to be a slave state and Maine to become a free state in exchange for anti-slavery legislation.