The History Of Herodotus Volume 1 of 2
Page: 191157. Thus he spoke, and the Babylonians, when they saw the man of most reputation among the Persians deprived of nose and ears and smeared over with blood from scourging, supposing assuredly that he was speaking the truth and had come to be their helper, were ready to put in his power that for which he asked them, and he asked them that he might command a certain force. Then when he had obtained this from them, he did that which he had agreed with Dareios that he would do; for he led out on the tenth day the army of the Babylonians, and having surrounded the thousand men whom he had enjoined Dareios first to set there, he slew them. The Babylonians accordingly, perceiving that the deeds which he displayed were in accordance with his words, were very greatly rejoiced and were ready to serve him in all things: and after the lapse of the days which had been agreed upon, he again chose men of the Babylonians and led them out and slew the two thousand men of the troops of Dareios. Seeing this deed also, the Babylonians all had the name of Zopyros upon their tongues, and were loud in his praise. He then again, after the lapse of the days which had been agreed upon, led them out to the place appointed, and surrounded the four thousand and slew them. When this also had been done, Zopyros was everything among the Babylonians, and he was appointed both commander of their army and guardian of their walls.
158. But when Dareios made an attack according to the agreement on every side of the wall, then Zopyros discovered all his craft: for while the Babylonians, having gone up on the wall, were defending themselves against the attacks of the army of Dareios, Zopyros opened the gates called the gates of Kissia and of Belos, and let in the Persians within the wall. And of the Babylonians those who saw that which was done fled to the temple of Zeus Belos, but those who did not see remained each in his own appointed place, until at last they also learnt that they had been betrayed.
159. Thus was Babylon conquered for the second time: and Dareios when he had overcome the Babylonians, first took away the wall from round their city and pulled down all the gates; for when Cyrus took Babylon before him, he did neither of these things: and secondly Dareios impaled the leading men to the number of about three thousand, but to the rest of the Babylonians he gave back their city to dwell in: and to provide that the Babylonians should have wives, in order that their race might be propagated, Dareios did as follows (for their own wives, as has been declared at the beginning, the Babylonians had suffocated, in provident care for their store of food):—he ordered the nations who dwelt round to bring women to Babylon, fixing a certain number for each nation, so that the sum total of fifty thousand women was brought together, and from these women the present Babylonians are descended.