These two authors agree then in fixing in Asia Minor the origin of this Persian religion that later spread over the Occident, and in fact various indications direct us to that country. The frequency of the name Mithradates, for instance, in the dynasties of Pontus, Cappadocia, Armenia and Commagene, connected with the Achemenides by fictitious genealogies, shows the devotion of those kings to Mithra.
As we see, the Mithraism that was revealed to the Romans at the time of Pompey had established itself in the Anatolian monarchies during the preceding period, which was an epoch of intense moral and religious unrest. Unfortunately we have no monuments of that period of its history. The absence of direct testimony on the development of Mazdean sects during the last three centuries before our era prevents us from gaining exact knowledge of the Parseeism of Asia Minor.
None of the temples dedicated to Mithra in that religion have been examined.[16] The inscriptions mentioning his name are as yet few and insignificant, so that it is only by indirect means that we can arrive at conclusions about this primitive cult. The only way to explain its distinguishing features in the Occident is to study the environment in which it originated.
During the domination of the Achemenides eastern { 144} Asia Minor was colonized by the Persians. The uplands of Anatolia resembled those of Persia in climate and soil, and were especially adapted to the raising of horses.[17] In Cappadocia and even in Pontus the aristocracy who owned the soil belonged to the conquering nation. Under the various governments which followed after the death of Alexander, those landlords remained the real masters of the country, chieftains of clans governing the canton where they had their domains, and, on the outskirts of Armenia at least, they retained the hereditary title of satraps through all political vicissitudes until the time of Justinian, thus recalling their Persian origin.[18] This military and feudal aristocracy furnished Mithradates Eupator a considerable number of the officers who helped him in his long defiance of Rome, and later it defended the threatened independence of Armenia against the enterprises of the Cæsars. These warriors worshiped Mithra as the protecting genius of their arms, and this is the reason why Mithra always, even in the Latin world, remained the "invincible" god, the tutelary deity of armies, held in special honor by warriors.