The oldest collection of written Sibylline Books appears to have been made about the time of Solon and Cyrus at Gergis on Mount Ida in the Troad. The sibyl, who was born near there, at Marpessus, and whose tomb was later marked by the temple of Apollo built upon the archaic site, appears on the coins of Gergis, c. 400-350 BCE. (cf. Phlegon, quoted in the 5th-century geographical dictionary of Stephanus of Byzantium, under 'Gergis'). Other places claimed to have been her home. The sibylline collection at Gergis was attributed to the Hellespontine Sibyl and was preserved in the temple of Apollo at Gergis. Thence it passed to Erythrae, where it became famous. It was this very collection, it would appear, which found its way to Cumae and from Cumae to Rome. Gergis, a city of Dardania in the Troad, a settlement of the ancient Teucri, and, consequently, a town of very great antiquity. Gergis, according to Xenophon, was a place of much strength. It had a temple sacred to Apollo Gergithius, and was said to have given birth to the sibyl, who is sometimes called Erythraea, ‘from Erythrae,' a small place on Mount Ida, and at others Gergithia ‘of Gergis'.