Punic control was also extended inland over the Libyans. Punic influence on inland regions is seen from the early sixth century, notably at Althiburos, where Punic construction techniques and red-slip pottery appear at this time. Armed conflicts with the Libyans are first attested in the early fifth century, with several revolts attested in the fourth century (398, 370s, 310-307 BC). In the late fourth century, Aristotle reports that the Carthaginians dealt with local discontent by resettling poor citizens in cities in Libya. These settlements had to provide tribute and military manpower when required, but remained self-governing. There is some onomastic evidence for intermarriage between Punic people and Libyans in the fourth and third centuries BC.