The Disciples of Christ, also known simply as the Christian Church, is a denomination of Christian Protestantism based on the teachings of Thomas Campbell and Alexander Campbell of Pennsylvania and Barton W. Stone and Virginia Stone of Kentucky. Both families were originally Presbyterians.
The Disciples of Christ started in the early 1800s with a focus on Christian unity and lack of strict denominationalism. This focus came from a study of the New Testament by its founders. Tolerance of other viewpoints that differed on non-essentials was key, as was inclusion based on the Lord's Table (Communion). It has been estimated that the indigenous movement that gave rise to the modern Disciples of Christ (and its associated offshoots) has only been surpassed in size by that of the Church of Jesus Christ of Latter-day Saints (Mormons).