The term Great Awakening can refer to several periods of religious revival in American religious history. Historians and theologians identify three or four waves of increased religious enthusiasm occurring between the early 18th century and the late 19th century. Each of these "Great Awakenings" was characterized by widespread revivals led by evangelical Protestant ministers, a sharp increase of interest in religion, a profound sense of conviction and redemption on the part of those affected, an increase in evangelical church membership, and the formation of new religious movements and denominations.
The Awakenings all resulted from powerful preaching that gave listeners a sense of personal guilt and of their need of salvation by Christ. Pulling away from ritual and ceremony, the Great Awakening made religion intensely personal to the average person by fostering a deep sense of spiritual guilt and redemption, and by encouraging introspection and a commitment to a new standard of personal morality.

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