[3] Theveste flourished under Septimius Severus reaching a population calculated in nearly 30,000 inhabitants, and was even an important Dioceses See.

[4] By 400 AD, Crispina's grave, situated in a cemetery outside the town, had become a significant pilgrimage complex.

[6] Theveste was raided by the Vandals, but it was rebuilt and made part of Byzantine North Africa at the beginning of the reign of Justinian I by the patricius Solomon.

The city was nearly destroyed by Umayyad Caliphate forces, but a small village (probably initially populated by a few surviving Christian Berbers) remained for centuries.

[7] 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.