Why was Frederick Douglass important? He was the first governor of Kansas.
He made the first pro-slavery speech in Congress.
He was a leader of the abolitionist movement.
He led the movement for the Missouri Compromise

He was a leader of the abolitionist movement

Explanation:

He escaped from slavery and eventually became a national leader of the abolitionist movement, becoming famous with his antislavery writings.

a.

congress passed laws allowing for free passage between states.

the noble might have thought that the system was far because they had lot of things and riches and the serf would have thought that the feudal system was un fair because of the way they were treated.