The Latter Day Saint movement is the collection of independent church groups that trace their origins to a Christian primitivist movement founded by Joseph Smith in the late 1820s. Collectively, these churches have over 16 million members. The vast majority of adherents—about 98%—belong to The Church of Jesus Christ of Latter-day Saints, with their predominant theology being Mormonism. The LDS Church self-identifies as Christian. A minority of Latter Day Saint adherents, such as members of the Community of Christ, believe in traditional Protestant theology, and have distanced themselves from some of the distinctive doctrines of Mormonism. Other groups include the Remnant Church of Jesus Christ of Latter Day Saints, which supports lineal succession of leadership from Smith's descendants, and the more controversial Fundamentalist Church of Jesus Christ of Latter-Day Saints, which defends the practice of polygamy.