Numidia

Not yet a province in its own right in 117 — that formal split from Africa Proconsularis waits until Septimius Severus, around 193 CE. In practice it already ran as one: the legate commanding Legio III Augusta at Lambaesis administered this whole military district directly, building a chain of forts south from Vescera under Trajan to hold the desert frontier the Senate's Carthage-based proconsul never touched.

Cities on the map

• Timgad — A veterans' colony founded by Trajan for Legio III Augusta. A textbook Roman grid, 17 years old at our snapshot.
• Djemila — Mountain colony of veterans (Roman Cuicul), contemporary with Timgad. Its stepped forum climbs the hillside.

3 places on the map

• Ad Maiores · Auxiliary Fort
• Castra Lambaesis · Fort
• Gemellae · Auxiliary Fort

Sources

• Tacitus, Histories 4.48 (legate's authority)
• CIL VIII (Lambaesis inscriptions)