Not many Americans then believed in tongues speaking or other visible manifestations of the Spirit, such as healing, visions, and everyday miracles.
The gathering was in line with an early 20th century movement that brought "modern Pentecostalism" to explode at Bethel Bible College in Topeka, Kansas, spreading rapidly through the student body. Soon there were profound stirrings at California's Azusa Street Mission and from there across America. In these early years, zeal sometimes outstripped propriety. Some groups were invaded by psychics. Individuals slipped into serious moral errors, trusting inner guidance rather than the words of scripture. Many renounced study altogether, relying on the Holy Spirit for impromptu guidance. Scattered observers realized Pentecostals needed to coordinate efforts if they were to propagate their faith with as much effect as their zeal craved.

They elected an executive committee. Intended at first merely to organize annual conferences, the committee rapidly metamorphosed into the governing body of a new denomination. The Assemblies of God was born.
The Assemblies of God USA (AG), officially the General Council of the Assemblies of God, is a Pentecostal Christian denomination in the United States founded in that1914 meeting of Pentecostal ministers at Hot Springs, Arkansas. It is the U.S. branch of the World Assemblies of God Fellowship, the world's largest Pentecostal body. With a constituency of over 3 million, the Assemblies of God was the ninth largest denomination in the United States in 2011.