The nobility had great influence in all things, and especially in the nomination of the king, who, however, was always an Arsacid. Next to the king stood the senate of _probuli_, from whom all generals and lieutenant-governors were chosen. They were called the king’s kin, and were no doubt the old Parnian martial nobility. A second senate was composed of the magians and wise men, and by these two senates the king was nominated. The Parthians were, in fact, very pious, conscientious in observing even the most troublesome precepts in Zoroastrianism as to the disposal of dead bodies, which were exposed to birds of prey and dogs, the bare bones alone being buried. When the Parthian prince Tiridates visited Nero he journeyed overland that he might not be forced to defile the sea when he spat, and his spiritual advisers the magians travelled with him. The magians were not, indeed, so all-powerful as under the Sassanians, but it is quite a mistake to think that the Parthians were but lukewarm Zoroastrians. SCYTHIAN CONQUEST OF BACTRIA [Sidenote: [177-130 B.C.]] The complete annihilation of the Macedonian Empire in Iran was closely followed by the destruction of Greek independence in eastern Iran. The last mention of independent Bactria is in 140 B.C.; no king of Bactria and Sogdiana is known from coins after the parricide Heliocles. Classical writers give only two laconic accounts of the catastrophe. Strabo says that the nomadic peoples of the Asii, Pasiani, Tochari, and Sacaraucæ, dwellers in the land of the Sacæ, beyond the Jaxartes, opposite to the Sacæ and Sogdians, came and took Bactria from the Greeks. Trogus names the Scythian peoples Saraucæ and Asiani. Fortunately the lively interest taken by the Chinese in the movements of the nomads of central Asia enables us to fill up this meagre notice from the report of the Chinese agent in Bactria in 128 B.C., as recorded a little later by the oldest Chinese historian, and from other notices collected by the Chinese after the opening of the regular caravan route with the West, about 115 B.C., and embodied in their second oldest history.