Which slavery-related event occurred first?

Question

the Compromise of 1850
the Fugitive Slave Act
the Kansas-Nebraska Act
the Missouri Compromise

Answer 1

The Missouri Compromise occurred first. It was enacted in 1820, while the other events happened later: the Compromise of 1850 (1850), the Fugitive Slave Act (part of the Compromise of 1850), and the Kansas-Nebraska Act (1854).