Perhaps inspired by descriptions of northern Europeans by ancient Greek and Roman chroniclers, the popular image of the strapping Viking in a horned helmet dates back to the 1800s, when Scandinavian artists like Sweden’s Gustav Malmström included the headgear in their portrayals of the raiders. When Wagner staged his “Der Ring des Nibelungen” opera cycle in the 1870s, costume designer Carl Emil Doepler created horned helmets for the Viking characters, and an enduring stereotype was born. Long before the Vikings’ time, Norse and Germanic priests did indeed wear horned helmets for ceremonial purposes.