Compromise of 1850: A series of laws that aimed to resolve disputes between slave and free states, including the admission of California as a free state.
Missouri Compromise: An agreement that allowed Missouri to enter the Union as a slave state while Maine entered as a free state, maintaining the balance between slave and free states.
Kansas-Nebraska Act: An act that repealed the Missouri Compromise line and allowed residents of these territories to decide whether they would allow slavery or not through popular sovereignty.