The Missouri Compromise of 1820, which aimed to maintain a balance between slave and free states, is explained in this historical document, highlighting the 36°30' line that divided the Louisiana Purchase into free and slave territories.
A historical document titled "Slave States, Free States" detailing the Missouri Compromise and the balance of power between slave and free states in the United States, with a map of the United States showing the 36°30' line dividing free and slave territories.