The Assemblies of God (AG), officially the World Assemblies of God Fellowship, is a group of over 144 autonomous self-governing national groupings of churches that together form the world’s largest Pentecostal denomination. It is the fourth largest international Christian group of denominations. As an international fellowship, the member denominations are entirely independent and autonomous, but they are united by shared beliefs and history. The Assemblies originated from the Azusa Street Revival of the early 20th century. This revival led to the founding, in 1914, of the Assemblies of God in the United States, the first Finished Work Pentecostal denomination.