Chichester is the only city in Sussex and owes its existence entirely to the Romans. There is no evidence of any form of a major settlement in the area before their arrival. The local iron age people lived in farmsteads rather than towns, although they were organised and there is evidence of considerable trade with the Mediterranean before the Roman invasion. In A.D. 40 Verica was their leader in the early part of the first century but lost control and fled to Rome to ask for support.