The common tradition connects the migration with the conquests of the Scythian king Iandysus, a contemporary of Sesostris [Ramses II]. It adds that Parthian means “fugitive” or “exile” (_Zend_, _peretu_). But the name Parthava is found on the inscriptions of Darius long before the immigration of the Parnians. The Parthian language is described as a sort of compound between Median and Scythian; and, since the name of the Dahæ and those of their tribes show that they belong to the nomads of Iranian kin, who in antiquity were widely spread from the Jaxartes as far as the steppes of south Russia, we must conclude that the mixed language arose by the action and reaction of two Iranian dialects, that of the Parthians and that of their masters. Their nomad costume the Parnians in Parthia gradually gave up for the Median dress, but they kept their old war-dress, the characteristic scale-armour completely covering man and horse. The founder of the empire appears on coins in this dress, with the addition of a short mantle; and so again does Mithridates II. The hands and feet alone are unprotected by mail; shoes with laces, and a conical helmet with flaps to protect the neck and ears, complete the costume. The conquerors of Parthia continued to be a nation of cavalry; to walk on foot was a shame for a free man; the national weapon was the bow, and their way of fighting was to make a series of attacks, separated by a simulated flight, in which the rider discharged his shafts backwards. Many habits of the life they had led in the desert were retained, and the Parthian rulers never lost connection with the nomad tribes on their frontiers, among whom several Arsacids found temporary refuge. Gradually, of course, the rulers were assimilated to their subjects; the habitual faithlessness and other qualities ascribed to the Parthians by the Romans are such as are common to all Iranians. The origin of the Parthian power naturally produced a rigid aristocratic system: a few freemen governed a vast population of bondsmen; manumission was forbidden, or rather was impossible, since social condition was fixed by descent; the ten thousand horsemen who followed Surenas into battle were all his serfs or slaves, and of the fifty thousand cavalry who fought against Antony only four hundred were freemen. BACTRIA AND PARTHIA CONSOLIDATE [Sidenote: [238-206 B.C.]]