Researchers believe that the town was founded in the seventh or sixth century BC by the Osci or Oscans. It came under the domination of Rome in the 4th century BC, and was conquered and became a Roman colony in 80 BC after it joined an unsuccessful rebellion against the Roman Republic. By the time of its destruction, 160 years later, its population was approximately 11,000 people, and the city had a complex water system, an amphitheatre, gymnasium and a port.