In 146 BC, the Romans conquered the region, where existed an old city called "Tbessa". Theveste was founded by the Romans in 75 AD near an old Berber village located next to the Aurès Mountains, in order to control the mountain region. During the 1st century CE, the Legio IIIAugusta resided there before being transferred to Lambaesis. It was made a colonia probably under Trajan. Theveste flourished under Septimius Severus reaching a population calculated in nearly 30,000 inhabitants, and was even an important Dioceses See. There is mention of a council held there by the Donatists. Among its saints were Lucius, its bishop, who assisted at the Council of Carthage and died as a martyr two years later; Maximilianus, martyred 12 March, 295 AD; and Crispina, martyred 5 December, 304 AD. Some of its bishops are known: Romulus in 349 AD; Urbicus in 411 AD; Felix exiled by the Vandals in 484 AD; and Palladius mentioned in an inscription. During the 4th and 5th century AD, Thebeste was a centre of Manichaeism as well. In June 1918 a codex of 26 leaves written in Latin by Manichaeans was discovered in a cave near the city. Theveste was raided by the Vandals, but it was rebuilt at the beginning of the reign of Justinian I by the patriciusSolomon. He erected a tomb there, which still exists. The city was nearly destroyed by Umayyad Caliphate forces, but a small village remained for centuries. Modern Tebessa is very rich in ancient monuments, among them being a triumphal arch of Caracalla, a temple, a Christian basilica of the 4th century and the huge walls.
Main architectural remains
Around the Roman Forum it is possible to see even today the remains of:
Arch of Caracalla, a Roman triumphal arch dating from 214 AD. This edifice, which was the North entrance to the town is positioned as a square at the junction of two roads. The four facades of this door are all identical.
Temple of Minerva, with walls decorated by mosaics. The Minerva Temple dates from the beginning of the 3rd Century. The interior walls of this Temple are ornamented with beautiful mosaics. One finds inside it various prehistoric articles
Remains of the Basilica of St. Crispinus, one of the biggest in Africa. It also has chapels, baptism urns, catacombs and gardens. The basilica is situated at the exterior of the old city at the north of the Arc of Caracalla. There are various pathways, huge steps, stables, walkways, and many Roman edifices around. This basilica is consecrated to a local Saint, Saint Crispina, and dates from the end of the 4th Century.
Byzantine walls, popularly known as "Solomon's Walls" and flanked by thirteen square towers. The Solomon wall encircles the old town centre. These walls are flanked by towers which open onto the outside by four doors. One of these four doors is an Arc de Triomphe.
Roman theatre. Small in size, it was created when the city was refounded as a base for the Legio III Augusta.
