William Seymour was an influential African American preacher and the leader of the Azusa Street Revival, which began in 1906 in Los Angeles, California. He played a key role in the early Pentecostal movement, emphasizing the importance of spiritual experiences, speaking in tongues, and divine healing. His leadership helped to spread Pentecostal beliefs across the United States and beyond. Seymour was born in 1870 in Louisiana and faced racial discrimination throughout his life. Despite these challenges, he became a prominent figure in the Christian community, advocating for unity among different races and denominations. His work at the Azusa Street mission laid the foundation for many modern Pentecostal churches.