Richard Carrier is a world-renowned author and speaker. As a professional historian, published philosopher, and prominent defender of the American freethought movement, Dr. 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. With a Ph.D. from Columbia University in ancient history, he specializes in the intellectual history of Greece and Rome, particularly ancient philosophy, religion, and science, with emphasis on the origins of Christianity and the use and progress of science under the Roman empire. He is also a published expert in the modern philosophy of naturalism as a worldview. He is the author of On the Historicity of Jesus, Proving History, Sense and Goodness without God, Not the Impossible Faith, Why I Am Not a Christian, and Hitler Homer Bible Christ, and a contributor to The Empty Tomb, The Christian Delusion, The End of Christianity, and Christianity Is Not Great, as well as copious work in history and philosophy, online and in print. He is currently working on several upcoming projects, but also teaching affordable online courses in secular philosophy, history, and methodology at Partners for Secular Activism, and blogging and speaking about history, philosophy, feminism, and other moral causes, as well as his past in the military and his current life in polyamory