The story of Gyges has come down to us in several versions. These include a summary of a version recorded by Nicholas of Damascus, which may descend ultimately from the Lydian historian Xanthos; a fragment of a dramatic version by an unknown Greek author; a brief description by Plutarch; Justin's summary of a version by Pompeius Trogus; and a version by Ptolemy Hephaestion of Alexandria, summarized by Photius. But the most famous and oldest fully extant versions of the story are those told by Herodotus and Plato.