Cimbrian War
They settled in the region between the 4th century and the second part of the 2nd century BC. In 113–101 BC, they took part in the fights against the Cimbri and Teutoni invaders during the Cimbrian War. In 57 and 52 BC, they participated in Gallic coalitions against Caesar, before their eventual subjugation by Rome in 51 BC. The Ambiani are known for their gold coinage, found in both northern France and Britain, which attest of extensive trading relations across the Channel.