not yet resign themselves to the belief that the male line of Cyrus had become extinct with the death of Cambyses.  The usurpation of Gaumata and the accession of Darius had not quenched their faith in the existence of Smerdis:  if the Magian were an impostor, it did not necessarily follow that Smerdis had been assassinated, and when a certain Vahyazdata rose up in the town of Tarava in the district of Yautiya, and announced himself as the younger son of Cyrus, they received him with enthusiastic acclamations.  A preliminary success gained by Hystaspes at Vispauzatish, in Parthia, on the 22nd of Viyakhna, 519 B.C., prevented the guerilla bands of Hyrcania from joining forces with the Medes, and some days later the fall of Babylon at length set Darius free to utilise his resources to the utmost.  The long resistance of Nebuchadrezzar furnished a fruitful theme for legend:  a fanciful story was soon substituted for the true account of the memorable siege he had sustained.  Half a century later, when his very name was forgotten, the heroism of his people continued to be extolled beyond measure.  When Darius arrived before the ramparts he found the country a desert, the banks of the canals cut through, and the gardens and pleasure-houses destroyed.  The crops had been gathered and the herds driven within the walls of the city, while the garrison had reduced by a massacre the number of non-combatants, the women having all been strangled, with the exception of those who were needed to bake the bread.  At the end of twenty months the siege seemed no nearer to its close than at the outset, and the besiegers were on the point of losing heart, when at length Zopyrus, one of the seven, sacrificed himself for the success of the blockading army.  Slitting his nose and ears, and lacerating his back with the lash of a whip, he made his way into the city as a deserter, and persuaded the garrison to assign him a post of danger under pretence of avenging the ill-treatment he had received from his former master.  He directed some successful sallies on points previously agreed upon, and having thus lulled to rest any remaining feelings of distrust on the part of the garrison, he treacherously opened to the Persians the two gates of which he was in charge; three thousand Babylonians were impaled, the walls were razed to the ground, and the survivors of the struggle were exiled and replaced by strange colonists.* The only authentic fact about this story is the length of the siege.  Nebuchadrezzar was put to death, and Darius, at length free to act, hastened to despatch one of his lieutenants, the Persian Artavardiya, against Vahyazdata, while he himself marched upon the Medes with the main body of the royal army.**