310s disestablishments in the Roman Empire

The Tetrarchy was the system instituted by Roman emperor Diocletian to govern the ancient Roman Empire by dividing it between two emperors, the augusti, and their junior colleagues and designated successors, the caesares. It was kept in place between AD 293 and 324.

Cirta, also known by various other names in antiquity, was the ancient Berber and Roman settlement which later became Constantine, Algeria.