What are three events that occurred between 1857 and 1859 that facilitated Southern secession?
complete splintering of the Republican Party in 1858
the Abraham Lincoln-Stephen Douglas debates
rejection of the Lecompton
Constitution by Buchanan Lincoln's election as president of the United States
the Dred Scott decision by the Supreme Court
raid on Harper's Ferry by abolitionist John Brown

Respuesta :

The Dred Scott verdict - which appeared to mean that slavery was legal anywhere in the USA.

The Lincoln-Douglas debates - won by Douglas, who said that each 
state should decide whether to be free or slave.

The John Brown raid - which made 
the Abolitionists look like terrorists, and gave respectability to Southern slave-owners.

Answer:

Second, fifth, and Sixth are the correct choices.

Explanation:

(2) the Abraham Lincoln-Stephen Douglas debates.

(5) the Dred Scott decision by the Supreme Court.

(6) raid on Harper's Ferry by abolitionist John Brown.