While the Social Gospel was making inroads within the denomination, the ministry of baseball player turned evangelist Billy Sunday demonstrated that evangelicalism and the revivalist tradition was still a force within the denomination. Sunday became the most prominent evangelist of the early 20th century, preaching to over 100 million people and leading an estimated million to conversion throughout his career. Whereas Stelzle emphasized the social aspects of Christianity, Sunday's focus was primarily on the conversion and moral responsibility of the individual.