- R. J. A. Wilson
Ammaedara (mod. Haidra), a Roman city in western Tunisia on the Carthage–Theveste trunk road, 36 km. (22 mi.) north-east of the latter. The first fortress of the Legio III Augusta was established here in Augustan times on a virgin site close to the oued Haidra. The exact position of the fortress is unknown, but it is assumed to lie under the Byzantine fortress at the heart of the site; legionary tombstones from a necropolis to the east demonstrate the presence of the legion. When the fortress was moved to *Thevestec.ce 75, a town was founded as colonia Flavia Augusta Aemerita Ammaedara (CIL 8. 308). Imposing ruins, including those of a capitolium (see capitol), a theatre, baths, an arch of Septimius Severus (195), and several mausolea, are spread out over an area of some 1,400×600 m. (1,500×650 yds.), but little excavation has been conducted. Ammaedara was a notable Christian centre, with bishops at least from 256; five churches of the 4th–6th cents. have been identified. A large Byzantine fortress (200×110 m.: 220×120 yds) dominates the centre of the site.