Demons and exorcism have been topics of discussion across many cultures and times. In Christianity’s first four centuries, exorcism became associated with marginalized or vulnerable people, providing many implications for cultural and political thinking. In this video, Dr. Jonathan Henry explains what people of the past thought about demons, the steps they took for managing problems attributed to demons, and most crucially, what all of this can tell us about people themselves. This knowledge offers a window for understanding human nature and the practical impact of abstract beliefs.