Answer: He saw John Quincy Adams handing Henry Clay a job after he had endorsed him, and saw how corrupt the system in Congress was when deciding the vote.
Explanation:
The Europeans came into contact with African slave traders while exploring the coast of Africa.
At 1950s it was different then today today we have many things at 1950s they didn't have many things they didn't have cars things were different then today today it's change it's not 1950s