High Quality Content by WIKIPEDIA articles! The Second Great Awakening was a Christian revival movement during the early 19th century in the United States. The movement began around 1800, had begun to gain momentum by 1820, and was in decline by 1870. The Second Great Awakening expressed Arminian theology, by which every person could be saved through revivals. It enrolled millions of new members, and led to the formation of new denominations. Many converts believed that the Awakening heralded a new millennial age. The Second Great Awakening stimulated the establishment of many reform movements designed to remedy the evils of society before the Second Coming of Jesus Christ.