The Church of the United Brethren in Christ is an evangelical Christian denomination based in Huntington, Indiana. It is a Protestant denomination of episcopal structure, Arminian theology, with roots in the Mennonite and German Reformed communities of 18th-century Pennsylvania, as well as close ties to Methodism. It was organized in 1800 by Martin Boehm and Philip William Otterbein and is the first American denomination that was not transplanted from Europe. It emerged from United Brethren churches that were at first unorganized, and not all of which joined this church when it was formally organized in 1800, following a 1789 conference at the Otterbein Church (Baltimore, Maryland).
In 1889, a controversy over membership in secret societies such as the Freemasons, the proper way to modify the church's constitution, and other issues split the United Brethren into majority liberal and minority conservative blocs, the latter of which was led by Bishop Milton Wright (father of the Wright Brothers). Both groups continued to use the name Church of the United Brethren in Christ.
The majority faction, known as the Church of the United Brethren in Christ (New Constitution), merged with the Evangelical Church in 1946 to form a new denomination known as the Evangelical United Brethren Church (EUB). This in turn merged in 1968 with The Methodist Church to form the United Methodist Church (UMC).