Evidence shows that the site was extensively settled and grew in importance during the Roman and Byzantine eras.

[7] Hassan ibn Thabit, a 7th-century Arab poet and companion of Muhammad, mentions high-quality wine from Beit Ras, indicating that it was transported by Bedouins to Arabia and was well-known in Medina during this period.

[8] Yaqut al-Hamawi (1179–1229) noted about Beit Ras: "A village of Jerusalem, or, it is said, belonging to the Jordan Province, There are quantities of vines here, from which the celebrated wine is made.

"[9] The city wall, with three north-facing gates,[5] can still be traced on the surface[3] Other remains include a temple of the Capitoline Triad, a three-tiered marketplace, a colonnaded street, a 5th-century church that was converted into a mosque in the 8th century, an aqueduct, reservoirs, a Roman military cemetery, and paved roads.

Further research has shown that large, primary chunks of glass were produced in the Levantine coastal area and brought to Capitolias for secondary production.

So it seems that during the late Roman/early Byzantine eras, Capitolias was a main center for secondary glass production in Jordan.

[13] The Polish-Jordanian excavations covered the northern part of the ancient city, to the west of the Roman theater.

[15] The excavation works yielded remains of defense walls, a winery, and workshops; the chronological sequence of the site from the Roman to the early medieval period was also established.

The captions, written in Aramaic with Greek letters, resemble the speech bubbles in modern comics.