The line of latitude that corresponded with Missouri's Southern border.
That was the Missouri Compromise of 1820, which kept the peace for thirty years, until the admission of California, which extended too far either side of the line.
This led to the Compromise of 1850 - a new deal, where there was no single line of demarcation.
Mississippi was a slave state until the end of the Civil War.
I believe Mississippi
Missouri Compromise
To avoid arguments over which Western territories could be admitted as slave-states. Any new state North of Missouri's Southern border would be free soil.
It was the border between Pennsylvania (free soil) and Maryland (slave-state). Beyond that, it had no actual significance.
The Missouri River
The Missouri River
The Missouri River
The Mississippi River.
This latitude followed the Southern border of the new state of Missouri. It was taken as the parallel that would mark the divide between slave-states and free soil, in the rest of the lands acquired from France in the Louisiana Purchase. It kept the peace for thirty years, until the huge territories acquired from Mexico rendered it obsolete.
The Mississippi River served as a significant border between free states and slave states during the Civil War. It was a crucial geographical and strategic divide, influencing the movement of troops and resources. The river's role in commerce and transportation further underscored its importance in the conflict between the Union and the Confederacy.
It was the southern border of Missouri and was just south of the point where the Ohio River ends.
Mississippi was a slave state until the end of the Civil War.
I believe Mississippi
Missouri Compromise
Slave territories primarily included the Southern states of the United States before the Civil War, such as Alabama, Mississippi, Louisiana, South Carolina, and Georgia, where slavery was legally practiced. Additionally, territories like Texas, Arkansas, and parts of Missouri and Kentucky also permitted slavery. Outside the U.S., regions like the Caribbean and Brazil were known for their extensive use of enslaved labor on plantations. Overall, slave territories were characterized by economies heavily reliant on agriculture and the exploitation of enslaved people.
The "Border States" were slave states.