Lepcis Magna was a Phoenician colony that belonged to the Carthaginian empire, but its nature was always very cosmopolitan. In the mid-second century, it was conquered by the Numidian king Massinissa, and later became part of the Roman empire. The Romans built the port, theater, amphitheater, bathhouses, and several triumphal arches; the greatest builder was the emperor Septimius Severus (193-211), who was a native of Lepcis Magna.