Dura-Europos was a Hellenistic, Parthian, and Roman border city built on an escarpment 90 metres (300 feet) above the southwestern bank of the Euphrates river. It is located near the village of Salhiyé, in present-day Syria. Dura-Europos was founded around 300 BC by Seleucus I Nicator, who founded the Seleucid Empire as one of the Diadochi of...