Related Sub-Movements
There are four events of the same sub-movement which were correlated to the Freeport Doctrine.
The Missouri Compromise of 1850
The Misssouri Compromise of September 20, 1850 brought about 5 new laws, but one was important for the case of Stephen A. Douglas. The compromise allowed for New Mexico and Utah to use popular sovereignty to decide upon whether to be pro or anti-slavery. This in result helped Douglas's claim of the Freeport Doctrine, and that it could work.
The Kansas-Nebraska Act
The Kansas-Nebrasksa Act of May 30, 1854, allowed settlers of territories to decide whether slavery would be allowed or not. This was in direct correlation the Freeport Doctrine, but not with the Missouri Compromise. Boundaries were not to be used to choose between pro and anti-slavery states, but rather territories. These events would soon lead to another, which would show some of the flaws of the Freeport Doctrine. Douglas talks of his plan to organize Kansas and Nebraska, "During the session of Congress of 1853-54, I introduced into the Senate of the United States a bill to organize the Territories of Kansas and Nebraska on that principle which had been adopted in the compromise measures of 1850..."
Bleeding Kansas
Bleeding Kansas was the direct effect of the Kansas-Nebraska Act. The act left disputes between colonies and set off an internal war in Kansas between pro and anti-slavery groups. From 1855-1856, the state was in civil war, and ultimately would set off the timer for the Civil War of the U.S. Bleeding Kansas showed the union the flaws in Douglas's Freeport Doctrine.
The Dred Scott Decision
The Dred Scott Decision was one of the most important decisions in the American war on slavery, as it allowed slave owners to take their slaves to the west which brough about a whole new discussion. The Dred Scott Decision also canceled out popular sovereignty, going againsts what Stephen A. Douglas would eventually formulate with the Freeport Doctrine. The Dred Scott Decision was also used by Abraham Lincoln in debating Douglas, forcing Douglas to choose a side.