What was one of the effects of the Second Great Awakening? People were becoming less religious. Slavery became even more widespread. The abolitionist movement grew as people tried to improve society.

Reaction against rationalism that was popular during the Enlightenment and the American Revolution; Calvinist teachings of original sin and predestination were rejected by believers in more liberal doctrines like the Unitarian Church; Calvinism began counterattack against these views; began among educated people; Reverend Timothy Dwight (president of Yale) held campus revivals that motivated young men to become preachers