other · Egypt, North Africa and Sudan

Roman Numidia

198 CE – 439 CE (approx.) · capital Cirta

Rome's frontier province in eastern Algeria, home of the Third Augustan Legion, the city of Timgad and the Donatist church.

Origins

Numidia came under Rome after the defeat of Juba I in 46 BCE and was long administered as part of Africa Proconsularis, although the commander of the Third Augustan Legion effectively governed it. Around 198 Septimius Severus made it a separate province, governed by the legate from the fortress at Lambaesis.

Rule and society

The legion guarded the Aurès mountains and the desert frontier, and veterans settled in new towns such as Thamugadi (Timgad), founded by Trajan in 100. Cirta was the leading city, renamed Constantina by Constantine. The high plains produced grain and olive oil. Numidia was the stronghold of the Donatist church and the birthplace of Augustine at Thagaste. Diocletian briefly split it into Numidia Cirtensis and Numidia Militiana.

Decline and legacy

After 435 the Vandals took control of parts of Numidia, and their capture of Carthage in 439 ended Roman rule. Byzantine forces later reoccupied much of it, while Berber kingdoms such as the Kingdom of the Aures held the mountains.

Lineage

Connections (2)

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Cite this page
APA
The Epoch Institute. (2026). Roman Numidia. In The Epoch Institute States Register. https://the-epoch-institute.org/state/roman-numidia
MLA
“Roman Numidia.” The Epoch Institute States Register, The Epoch Institute, 2026, https://the-epoch-institute.org/state/roman-numidia. Accessed .
Chicago
The Epoch Institute. “Roman Numidia.” The Epoch Institute States Register. 2026. https://the-epoch-institute.org/state/roman-numidia.
Harvard
The Epoch Institute (2026) ‘Roman Numidia’, The Epoch Institute States Register. Available at: https://the-epoch-institute.org/state/roman-numidia (Accessed: ).

Last reviewed October 2026Random state ↻