An assistant professor of classics at Gustavus Adolphus College, in Minnesota, Bronwen Wickkiser (“Asklepios Appears in a Dream”) has published several articles on medicine in the Greco-Roman world.

Leo Depuydt (“How to Date a Pharaoh”) is an associate professor of Egyptology at Brown University. He is the author of Civil Calendar and Lunar Calendar in Ancient Egypt (1997) and numerous scholarly articles on ancient Egyptian manuscripts, writing, languages, science and chronology.