Richard Carrier speaks to us about the origins of Christianity. Dr. Carrier is a world-renowned author and speaker. As a professional historian, published philosopher, and prominent defender of the American freethought movement, Carrier has appeared across the U.S., Canada and the U.K., and on American television and London radio, defending sound historical methods and the ethical worldview of secular naturalism. His books and articles have received international attention. Carrier holds a Ph.D. from Columbia University in ancient history.