The Methodist Episcopal Church (MEC) was the oldest and largest Methodist denomination in the United States from its founding in 1784 until 1939. It was also the first religious denomination in the US to organize itself on a national basis. In 1939, the MEC reunited with two breakaway Methodist denominations to form the Methodist Church. In 1968, the Methodist Church merged with the Evangelical United Brethren Church to form the United Methodist Church.