The Caduceus is an ancient Greek or Roman herald's wand, typically one with two serpents twined around it, carried by the messenger god Hermes or Mercury. a representation of this, traditionally associated with healing. Some accounts suggest that the oldest known imagery of the caduceus have their roots in a Mesopotamian origin with the Sumerian god Ningishzida whose symbol, a staff with two snakes intertwined around it, dates back to 4000 B.C. to 3000 B.C This is the best gift for medical schoo