Delving deeply into ancient medical history, Bronwen L. Wickkiser explores the early development and later spread of the cult of Asklepios, one of the most popular healing gods in the ancient Mediterranean. Though Asklepios had been known as a healer since the time of Homer, evidence suggests that large numbers of people began to flock to the cult during the fifth century BCE, just as practitioners of Hippocratic medicine were gaining dominance.

Drawing on close readings of period medical texts, literary sources, archaeological evidence, and earlier studies, Wickkiser finds two...