Charles Parham was an American preacher and evangelist, best known for his role in the early Pentecostal movement. Born in 1873, he founded the Bethel Bible College in Topeka, Kansas, where he taught that speaking in tongues was a sign of receiving the Holy Spirit. His teachings significantly influenced the development of modern Pentecostalism. In 1901, Parham's students experienced a notable event when they began speaking in tongues, which he interpreted as a divine confirmation of his beliefs. This event is often considered the starting point of the Pentecostal revival. Parham's emphasis on spiritual experiences and healing contributed to the growth of the movement throughout the early 20th century.