In particular, between the Magi, who had long been adepts of the most occult and sacred knowledge, and the priests of Zoroaster, there were numerous correspondences. It was not even clear which order had first proclaimed eternal war against insects and reptiles, had first worn white robes as the mark of their status, or had first exposed the corpses of their fellows to be consumed by birds and dogs (a fate otherwise regarded among the Persians as so terrible that it was reserved for regicides).