The Missouri Compromise of 1820 admitted Maine as a free state and Missouri as a slave state while setting boundaries for slavery in new territories.
The Missouri Compromise of 1820 provided that Maine would be admitted as a 'free state' simultaneously with Missouri being admitted as a 'slave state', maintaining a balance. Additionally, it established that lands north of the Ohio River would not permit enslavement, and the new dividing line between slavery and freedom in the territories of the Louisiana Purchase would be the 36° 30′ line.
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