Answer:
This questioning originated from religious thinking along with the concept of freedom for all people.
Explanation:
At some point in history, some people began to see that blacks were human beings and that every human being was a child of God. Given the suffering that blacks endured, and the certainty that God is not satisfied with the suffering of their children, one began to question whether slavery was a disobedience to God's word and whether slavery was a sinful thing.
This questioning began a religious commitment that emphasized the equality of all Americans.
