Orthosias in Phoenicia

Orthosia (Ancient Greek: Ὀρθωσία) also known as Orthosias, and Orthosia in Phoenicia, was an ancient Phoenician town located on the coast of what is now modern-day Lebanon. Situated north of Tripolis (modern Tripoli) and south of the Eleutherus River (modern Nahr al-Kabir), its site is generally identified with the area of Ard Artous or Khan ard-Artusi, near the mouth of the Nahr el-Bared river. The town was mentioned in Ancient Egyptian records (as Ullasa), classical texts, and later in Crusader chronicles. In the late Roman era, it was located administratively in the Roman province of Phoenicia Prima, and was a bishopric that was a suffragan of Tyre.

Despite being attested in classical sources and through numismatic evidence, the precise location of Orthosia remained uncertain for centuries and was only definitively identified in 2007 following events connected to the conflict at the Nahr el-Bared refugee camp.