Missouri Compromise (1820) (apr 18, 1820 – feb 16, 1854)
Description:
"The Missouri Compromise forbids slavery in the Louisiana territory north of Missouri's Southern border. Under its terms, Maine is admitted to the Union as a free state and Missouri as a slave state.Dred Scott case."
Source:
https://www.nationalgeographic.org/interactive/slavery-united-states/
Added to timeline:
Date:
apr 18, 1820
feb 16, 1854
~ 33 years