In its early days, Tulsa, Oklahoma, became an important center of Pentecostal and Charismatic Christianity. The city saw waves of revival from well-known revivalists like Aimee Semple McPherson and Raymond T. Richey, who established many Pentecostal churches. Later, it became home to renowned healing evangelists like Oral Roberts and T.L. Osborn. Through triumphs and tragedies like the 1921 Race Massacre, after which a resilient black Pentecostal community helped revive the famous Greenwood District, the city has emerged as a unique and important part of the story of Pentecostalism.