1820 – The Missouri Compromise is signed into law by President James Monroe.
1857 – The Supreme Court of the United States rules in the Dred Scott v. Sandford case.
The Missouri Compromise was an agreement passed in 1820 between the pro-slavery and anti-slavery factions in the United States Congress, involving primarily the regulation of slavery in the western territories. It prohibited slavery in the former Louisiana Territory north of the parallel 36°30′ north, except within the boundaries of the proposed state of Missouri.
The Dred Scott Decision was a ruling by the U.S. Supreme Court in
1857 that people of African descent brought into the United States and held as slaves were not protected by the Constitution and could never be U.S. citizens.
(In case you've forgotten, Dred Scott was an African-American slave who unsuccessfully sued for his freedom in the Dred Scott v. Sandford case of 1857, popularly known as "the Dred Scott Decision.")
It was in his honor that I chose my pirate name, the Dred Pirate Scott.