Douglas wanted to expand the US westward. He wanted to make two new territories called Nebraska and Kansas. On January 23, 1854, Douglas gave Congress a bill to make Nebraska and Kansas states, but they would repeal the Missouri Compromise.
People from the North and South moved to Kansas, to try and get Kansas to be a slave state or a free state. It was a competition for the North and South, said William Seward from New York.
On May 21, 1856, proslavery people went to the antislavery headquarters. They burned the headquarters, destroyed two of their printing presses, and looted many houses and stores. Newspapers named the event "The Sack of Lawrence."
How dare you touch him!
On May 24, John Brown and some of his followers pulled 5 men from their beds. They hacked off their hands and stabbed them with broadwords. He did this because he thought that 5 people died during "The Sack of Lawrence." Since Brown did this it made many people angry leading to revenge.
The massacre triggered dozens of incidents throughout Kansas. With about 200 dead. John Brown fled during the war, leaving behind men and women with rifles to protect themselves. This lead to the Civil War and to "Bleeding Kansas."
While the battles in Kansas were taking place there was also a problem going on in the Senate. The Massachussets senator Charles Sumner delivered a speech called "The Crime Against Kansas", for 2 days he verbally attacked his colleges who supported slavery. One man who Sumner abused was Andrew P. Butler, his nephew Preston Brooks came to the chamber one day and hit him over the head with his cane until it broke.