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).