The International Missionary Society Seventh-day Adventist Church Reform Movement first appeared as a distinct organization i ... n German shortly after WWI (1914-1918). Its first members were former Seventh-day Adventist who had been disfellowshipped during WWI for their “unchristian conduct” in openly opposing leaders of the church for supporting the war and committing its young men to the battlefield, weapons in hand. The original Adventist Movement had come out of the greatest religious awakening and revival since apostolic times (1814-1844), but it was not until the American Civil War (1861-1865) that expedience demanded it organize as a distinct denomination. The International Missionary Society is represented in more than 100 countries. Its adherents worship on the seventh-day Sabbath (Saturday) and believe in Jesus Christ as Lord and Saviour. The organization holds the Bible to be inerrant and acknowledges the published writings of Ellen G. White to be part of the Spirit of Prophecy (inspired writings) for the last days. Membership: The International Missionary Society Seventh-day Adventist Church Reform Movement numbers approximately 30,000 members worldwide with more than 73,000 congregants attending church services on the weekly Sabbath day. Periodicals: The Sabbath Watchman. General Conference: 625 West Avenue, P.O. Box S. Cedartown, GA 30125, U.S.A. read more