Answer:
4.On May 24th, 1856, John Brown and a group of his followers launched a surprise attack on a pro-slavery settlement at Pottawatomie Creek in Kansas. They killed five men, who were supporters of slavery, with broadswords. Brown believed that violence was necessary to end slavery and that God had chosen him to lead the fight. The attack at Pottawatomie Creek was one of the most violent incidents in what became known as "Bleeding Kansas" - a period of intense conflict between pro-slavery and anti-slavery forces in the territory.
5. On October 16th, 1859, John Brown and a group of followers attacked the federal armory at Harpers Ferry, Virginia. Brown hoped to seize the weapons stored there and use them to arm slaves in a revolt against their owners. The attack was unsuccessful, and Brown and his men were quickly surrounded by local militia and federal troops. Brown was captured and later executed for his role in the raid. The incident at Harpers Ferry was a key event leading up to the American Civil War, as it heightened tensions between the North and South over the issue of slavery.
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I can't answer the last one srry :/