Complex sentence: The ancient town was founded by the Numidians as a defense post against the Carthaginians; it was settled by Punics after the destruction of Carthage by the Romans in 146 BC. Under Roman and Byzantine control, it served as a defense against the local Berber tribes.
Split into simpler sentences: The ancient town was founded by the Numidians as a defense post against the Carthaginians. It was settled by Punics after the destruction of Carthage by the Romans in 146 BC. Under Roman and Byzantine control, it served as a defense against the local Berber tribes.