When were the Tunisia ruins built in Roman times?

The ruins in Tunisia, particularly those in Carthage and the Roman amphitheater in El Djem, were built during the Roman Empire's expansion in North Africa, primarily between the 1st and 3rd centuries AD. Carthage was famously rebuilt by the Romans after its destruction in 146 BC, with significant construction occurring in the 2nd century AD. El Djem's amphitheater, one of the largest in the Roman world, was completed around the 3rd century AD. These sites reflect the architectural and cultural influences of Roman rule in the region.