Jerash is known for the ruins of the Greco-Roman city of Gerasa, also referred to as Antioch on the Golden River. It is sometimes misleadingly referred to as the "Pompeii of the Middle East or Asia", referring to its size, extent of excavation and level of preservation (though Jerash was never buried by a volcano). Jerash is considered one of the most important and best preserved Roman cities in the Near East. It was a city of the Decapolis.
Recent excavations show that Jerash was already inhabited during the Bronze Age (3200 BC - 1200 BC. After the Roman conquest in 63 BC, Jerash and the land surrounding it were annexed by the Roman province of Syria, and later joined the Decapolis cities. In AD 90, Jerash was absorbed into the Roman province of Arabia, which included the city of Philadelphia (modern day Amman). The Romans ensured security and peace in this area, which enabled its people to devote their efforts and time to economic development and encouraged civic building activity.