first appearance in Media, in the city of Xiz, afterwards called Aderbijan, as some say; or according to others, in Ecbatana, afterwards Tauris. Instead of admitting the existence of two first causes with the Magians, he introduced a principle superior to them both--one supreme God, who created both these, and out of these two produced, according to his sovereign pleasure, everything else. Zoroaster caused fire temples to be erected wherever he came: for having feigned that he was taken up into heaven, and there instructed in the doctrines he taught by God himself, out of the midst of a great and most bright flame of fire, he taught his followers that fire was the truest shekinah of the divine presence; that the sun being the most perfect fire, God had there the throne of his glory, and the residence of his divine presence in a peculiar manner; and next to this in our elementary fire; and, therefore, he ordered them to direct all their worship to God, first towards the sun, which they called Mithra, and next towards their sacred fires; and when they came before these fires to worship, they always approached them on the west side, that having their faces towards them, and also towards the rising sun at the same time, they might direct their worship towards both. And in this posture they always performed every act of their worship. Zoroaster also pretended that he brought some of the heavenly fire with him on his return and placed it on the altar of the first fire temple, which he erected at Xiz, in Media, whence it was propagated to all the rest; and on this account their priests carefully watched it and never suffered it to be extinguished.