Campbellite is a mildly pejorative term referring to adherents of certain religious groups that have historic roots in the Restoration Movement, among whose most prominent 19th century leaders were Thomas and Alexander Campbell. Members of these groups generally consider the term "Campbellite" inappropriate, saying that they are followers of Jesus, not Campbell.:85–87:91–93 They draw parallels with Martin Luther's protest of the name "Lutherans" :162,163 and the "Anabaptists" protest of the name given to them by their enemies. With specific reference to the early Restoration Movement, "[t]he terms Campbellism and Campellites were universally rejected by those to whom they were applied.":86
Over time, strains grew within the Restoration Movement. In 1906, the U.S. Religious Census listed the Christian Churches and the Churches of Christ as separate and distinct groups for the first time.:251 This, however, was simply the recognition of a division that had been growing for years, with published reports as early as 1883.:252 The most obvious distinction between the two groups was the rejection of musical instruments in the Churches of Christ. The controversy over musical instruments began in 1860 with the introduction of organs in some churches. More basic were differences in the underlying approach to Biblical interpretation. For the Churches of Christ, any practices not present in accounts of New Testament worship were not permissible in the church, and they could find no New Testament documentation of the use of instrumental music in worship. For the Christian Churches, any practices not expressly forbidden could be considered.:242–247 The major groups with historical roots in the movement are:
^The Merriam-Webster Collegiate Dictionary describes the term as "sometimes offensive." Merriam-Webster, I. (2003). Merriam-Webster’s collegiate dictionary. (Eleventh ed.). Springfield, MA: Merriam-Webster, Inc. Entry on "Cambellite."