What happen in 1857 Supreme Court?

In 1857, the U.S. Supreme Court delivered the landmark decision in Dred Scott v. Sandford, which ruled that enslaved people were not citizens and therefore had no standing to sue in federal court. The Court also declared that Congress lacked the authority to prohibit slavery in the territories, effectively nullifying the Missouri Compromise. This decision intensified national tensions over slavery and is often cited as a contributing factor to the outbreak of the Civil War.