The Latter Day Saint movement (also called the LDS movement, LDS restorationist movement, or Smith–Rigdon movement) is the collection of independent church groups that trace their origins to a Christian Restorationist movement founded by Joseph Smith in the late 1820s.

Collectively, these churches have over 17 million nominal members, including over 17 million belonging to the Church of Jesus Christ of Latter-day Saints (LDS Church), 250,000 in the Community of Christ, and several other denominations with memberships generally ranging in the thousands of members. The predominant theology of the churches in the movement is Mormonism, which sees itself as restoring again on Earth the early Christian church; an additional doctrine of the church allows for prophets to receive and publish modern-day revelations.

A minority of Latter Day Saint adherents, such as members of Community of Christ, have been influenced by Protestant theologies while maintaining certain distinctive beliefs and practices including continuing revelation, an open canon of scripture and building temples. 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. (Full article...)