Which of these was a result of the Pottawatomie Massacre? Kansas’s citizens began a mass migration to northern states. Kansas collapsed into a civil war and many citizens were killed. Kansas’s government was no longer divided over the issue of slavery. Kansas was declared a free state by the federal government.

Explanation:

The sack of Lawrence and the massacre at Pottawatomie set off a brutal guerrilla war in Kansas. By the end of 1856, over 200 people would be gunned down in cold blood. Property damage reached millions of dollars. Federal troops were sent in to put down the fighting, but they were too few to have much effect. Kansas served as a small scale prelude to the bloody catastrophe that engulfed the entire nation only 5 years later.

which time period is this? or is this story fictional, i'm going to need more info to answer this question