 In 1943, the United States government established a top-secret testing site at the Bonebrake Theological Seminary for the Dayton Project, which was part of the broader Manhattan Project, where research was conducted on the creation of an atomic bomb and polonium was produced that would eventually be used in the atomic bomb that was dropped on Nagasaki, Japan, on August 9, 1945.After many years of planning the Church of the United Brethren in Christ merged with the Evangelical Church, forming a new denomination which would be called the Evangelical United Brethren Church, with which the seminary then became affiliated.As a result of the merger that created the Evangelical United Brethren Church efforts were made to merge the seminaries of the two denominations.