The History Of Herodotus Volume 1 of 2
Page: 712. So after they had prepared the plot, when night came on, (for Gyges was not let go nor was there any way of escape for him, but he must either be slain himself or slay Candaules), he followed the woman to the bedchamber; and she gave him a dagger and concealed him behind that very same door. Then afterwards, while Candaules was sleeping, Gyges came privily up to him 10 and slew him, and he obtained both his wife and his kingdom: of him moreover Archilochos the Parian, who lived about that time, made mention in a trimeter iambic verse. 11
13. He obtained the kingdom however and was strengthened in it by means of the Oracle at Delphi; for when the Lydians were angry because of the fate of Candaules, and had risen in arms, a treaty was made between the followers of Gyges and the other Lydians to this effect, that if the Oracle should give answer that he was to be king of the Lydians, he should be king, and if not, he should give back the power to the sons of Heracles. So the Oracle gave answer, and Gyges accordingly became king: yet the Pythian prophetess said this also, that vengeance for the Heracleidai should come upon the descendants of Gyges in the fifth generation. Of this oracle the Lydians and their kings made no account until it was in fact fulfilled.
14. Thus the Mermnadai obtained the government having driven out from it the Heracleidai: and Gyges when he became ruler sent votive offerings to Delphi not a few, for of all the silver offerings at Delphi his are more in number than those of any other man; and besides the silver he offered a vast quantity of gold, and especially one offering which is more worthy of mention than the rest, namely six golden mixing-bowls, which are dedicated there as his gift: of these the weight is thirty talents, and they stand in the treasury of the Corinthians, (though in truth this treasury does not belong to the State of the Corinthians, but is that of Kypselos the son of Aëtion). 12 This Gyges was the first of the Barbarians within our knowledge who dedicated votive offerings at Delphi, except only Midas the son of Gordias king of Phrygia, who dedicated for an offering the royal throne on which he sat before all to decide causes; and this throne, a sight worth seeing, stands in the same place with the bowls of Gyges. This gold and silver which Gyges dedicated is called Gygian by the people of Delphi, after the name of him who offered it.
Now Gyges also, 13 as soon as he became king, led an army against Miletos and Smyrna, and he took the lower town of Colophon: 14 but no other great deed did he do in his reign, which lasted eight-and-thirty years, therefore we will pass him by with no more mention than has already been made,
15, and I will speak now of Ardys the son of Gyges, who became king after Gyges. He took Priene and made an invasion against Miletos; and while he was ruling over Sardis, the Kimmerians driven from their abodes by the nomad Scythians came to Asia and took Sardis except the citadel.