Where Gerasa stood and what it was
Gerasa lies in northern Jordan, in a valley fed by a stream, with the modern town of Jerash growing beside the ruins. It is often described as one of the best-preserved Roman provincial cities in the Near East. That reputation is earned partly by what survives above ground and partly by the fact that, unlike many cities, the ancient site was not built over by a large modern one, although Jerash has expanded close to it.
The early history is uncertain. Settlement existed in the Hellenistic period, and ancient traditions linked the city’s founding to Alexander the Great or one of his generals, but archaeologists treat those stories cautiously. Inscriptions use the name Antioch on the Golden River for the city, which scholars often link to a refoundation under the Seleucid king Antiochus IV in the second century BCE, though the details are debated. After Pompey’s campaigns in the area around 63 BCE, Gerasa came within the Roman sphere.
One of the Decapolis
Gerasa is traditionally counted among the Decapolis, a group of “ten cities” in the south of Roman Syria and neighbouring regions. The Roman writer Pliny the Elder gives a list of ten, though other lists vary and Gerasa is not named in every one. Scholars now debate whether the Decapolis was ever a formal league. It may be better understood as a label for a cluster of Greek-style cities, with shared culture and civic institutions, rather than a political body.
The city’s big building phase came in the first and second centuries CE. When Trajan annexed the Nabataean kingdom in 106 CE, the Roman annexation of Nabataea created the province of Arabia, and Gerasa fell inside it. Better roads, which made Roman road travel easier, and caravan trade of the kind associated with the incense trade helped the city prosper, and local landowners and merchants financed building.
The oval plaza and the main street
The most distinctive feature is the oval plaza, or forum, at the southern end of the main street. It is roughly 90 metres long and surrounded by a curving row of Ionic columns, and its oval shape has often been explained as a way of linking two street axes that were not aligned. A simpler reading is that it was a monumental space for meetings and markets.
From the plaza, the cardo, the north-south main street, runs for roughly 800 metres. The Gerasa colonnaded street was lined with columns, some of the Corinthian order, and shops stood behind the colonnades. The paving still shows chariot wheel ruts, a detail that makes the ancient street feel unusually concrete. Side streets met it at intersections, and a monumental fountain, a nymphaeum, was built along it in the later second century. Colonnaded avenues like this were a common sign of Roman-style planning in the east, and they set the city in a Mediterranean tradition of public space.
Temples, theatres and gates
Gerasa had several major religious buildings. The Temple of Artemis, the city’s patron goddess, stands on a terrace west of the main street, reached by a processional stairway, and its tall columns remain among the most striking features. This is a different sanctuary from the famous Temple of Artemis at Ephesus. The Temple of Zeus on a hill near the south theatre belongs to the same period of civic investment, and it also overlooks the oval plaza. The cult of Zeus, in an area where local gods often took Greek names, shows how religion mixed Greek and Near Eastern traditions.
There are two theatres. The South Theatre is the larger, with seating for several thousand people, and the North Theatre was a smaller, council-style building. Both illustrate the ideas of Greek and Roman theater architecture adapted to a regional city. A long hippodrome stood outside the walls, and Hadrian’s Arch, built to mark the emperor’s visit in 129 to 130 CE, stood at the southern edge of the city. Inscriptions record that Hadrian spent the winter in the region, and the arch is a reminder of how imperial visits stimulated local building.
After the Roman period
Gerasa continued to flourish in late antiquity as a Christian city, and archaeologists have found many churches there, some with mosaic floors. Persian forces passed through the area in the early seventh century, and the region came under Muslim rule in the 630s, but the city remained occupied under the Umayyads. A major earthquake in 749 CE damaged it badly, and in later centuries the site shrank to a small settlement.
European travellers brought the site to wider notice in the early nineteenth century, beginning with Ulrich Seetzen in 1806, and large-scale excavation started in the 1920s and continues in different forms. The ruins are now a major heritage site and the focus of annual cultural events. Much of what visitors see is the result of both ancient construction and modern restoration, so it helps to distinguish original stonework from rebuilding. Gerasa’s value lies in showing, in one place, how streets, temples, theatres and gateways combined into a coherent provincial city on the edge of the Roman world.