Beast Fables - Comic 4 - Thorn runs off to grab a book on Medieval astrology.

Medieval Moment: The Middle Ages were an interesting time for medicine. As Ian Mortimer puts it, “[People of the Middle Ages] probably have as much medical “knowledge” as we do, only it is based on astrology, herbology, religion, a little direct experience, philosophy, fundamental misconceptions about how the body works, a lot of hearsay, and a large measure of desperation.” This led to there being a best season and time to treat nearly everything, including the moods of some kings.

Ian Mortimer, The Time Traveler’s Guide to Medieval England, pg 412

It depends on whether the king was born in May under the North Star, or maybe whether or not a lamb was present during his second birthday, or… you know what? I’ll wait until he’s rested.