Attalid dynasty
Hierapolis was founded as a thermal spa early in the 2nd century BC within the sphere of the Seleucid Empire. Antiochus the Great sent 2,000 Jewish families to Lydia and Phrygia from Babylon and Mesopotamia, later joined by more from Judea. The Jewish congregation grew in Hierapolis and has been estimated as high as 50,000 in 62 BC. Hierapolis became a healing centre where doctors used the thermal springs as a treatment for their patients. The city began minting bronze coins in the 2nd century BC. These coins give the name Hieropolis. It remains unclear whether this name referred to the original temple (, "hieron") or honoured Hiera, the wife of Telephus, son of Heracles and the Mysian princess Auge, the supposed founder of Pergamon's Attalid dynasty. This name eventually changed into Hierapolis ("holy city"). In 133 BC, when Attalus III died, he bequeathed his kingdom to Rome. Hierapolis thus became part of the Roman province of Asia. In AD 17, during the rule of the emperor Tiberius, a major earthquake destroyed the city.