<P> Prior to the U.S. Religious Census of 1906, all congregations associated with the Restoration Movement had been reported together by the Census Bureau . But as the movement developed, tensions grew between those who emphasized unity and those who emphasized restoration, highlighting differences in the groups' underlying approaches to Biblical interpretation . For the Churches of Christ, practices not present in accounts of New Testament worship were not permissible in the church . In contrast, the Christian Church may consider any practice not expressly forbidden . </P> <P> For example, the Christian Church uses musical instruments in worship (known as the Christian Church), whereas the Churches of Christ believe a cappella singing to be proper . In addition, there was also disagreement over the appropriateness of organizational structures above the congregational level, such as those of missionary societies and funding orphanages . </P> <P> Though not officially recognized as distinct movements until 1906, the separation of the Churches of Christ and the Christian Churches had been taking place gradually for decades . </P> <P> The Restoration Movement was not a purely North American phenomenon, and active mission efforts began in the 18th century . There are now Churches of Christ in Africa, Asia, Australia, South America, Central America, and Europe . </P>

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