Christians have been trying to nail down their identity for millennia. As early as A.D. 200, Tertullian was laying out arguments that the Magi, while astrologers by trade, were considered kings. To the contrary, John Calvin felt strongly about anyone who would label them “three kings”: “Beyond all doubt, they have been stupefied by a righteous judgment of God, that all might laugh at [their] gross ignorance.” Adding a further wrinkle, first-century naturalist Pliny the Elder wrote several chapters about the Magi wherein they sound more like something from a Harry Potter novel. He details their skill in magic arts—including pouring boiled earthworms in the ear to cure a toothache!