Such were the chief military successes of Artaxerxes. The greatest of our historians, Gibbon, ventures indeed to assign to him, in addition, “some easy victories over the wild Scythians and the effeminate Indians.” But there is no good authority for this statement; and on the whole it is unlikely that he came into contact with either nation. His coins are not found in Afghanistan; and it may be doubted whether he ever made any eastern expedition. His reign was not long; and it was sufficiently occupied by the Roman and Armenian wars, and by the greatest of all his works, the reformation of religion. The religious aspect of the insurrection which transferred the headship of Western Asia from the Parthians to the Persians, from Artabanus to Artaxerxes, has been already noticed; but we have now to trace, so far as we can, the steps by which the religious revolution was accomplished, and the faith of Zoroaster, or what was believed to be such, established as the religion of the State throughout the new empire. Artaxerxes, himself (if we may believe Agathias) a Magus, was resolved from the first that, if his efforts to shake off the Parthian yoke succeeded, he would use his best endeavors to overthrow the Parthian idolatry and install in its stead the ancestral religion of the Persians. This religion consisted of a combination of Dualism with a qualified creature-worship, and a special reverence for the elements, earth, air, water, and fire. Zoroastrianism, in the earliest form which is historically known to us, postulated two independent and contending principles--a principle of good, Ahura-Mazda, and a principle of evil, Angro-Mainyus. These beings, who were coeternal and coequal, were engaged in a perpetual struggle for supremacy; and the world was the battle-field wherein the strife was carried on. Each had called into existence numerous inferior beings, through whose agency they waged their interminable conflict. Ahura-Mazda (Oromazdos, Ormazd) had created thousands of angelic beings to perform his will and fight on his side against the Evil One; and Alngro-Mainyus (Arimanius, Ahriman) had equally on his part called into being thousands of malignant spirits to be his emissaries in the world, to do his work, and fight his battles. The greater of the powers called into being by Ahura-Mazda were proper objects of the worship of man, though, of course, his main worship was to be given to Ahura-Mazda. Angro-Mainyus was not to be worshipped, but to be hated and feared. With this dualistic belief had been combined, at a time not much later than that of Darius Hystaspis, an entirely separate system, the worship of the elements. Fire, air, earth, and water were regarded as essentially holy, and to pollute any of them was a crime. Fire was especially to be held in honor; and it became an essential part of the Persian religion to maintain perpetually upon the fire-altars the sacred flame, supposed to have been originally kindled