<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> Roman Britain (Latin: Britannia or, later, Britanniae, "the Britains") was the area of the island of Great Britain that was governed by the Roman Empire, from 43 to 410 AD . </P> <P> Julius Caesar invaded Britain in 55 and 54 BC as part of his Gallic Wars . The Britons had been overrun or culturally assimilated by other Celtic tribes during the British Iron Age and had been aiding Caesar's enemies . He received tribute, installed a friendly king over the Trinovantes, and returned to Gaul . Planned invasions under Augustus were called off in 34, 27, and 25 BC . In 40 AD, Caligula assembled 200,000 men at the Channel, only to have them gather seashells . Three years later, Claudius directed four legions to invade Britain and restore an exiled king over the Atrebates . The Romans defeated the Catuvellauni, and then organized their conquests as the Province of Britain (Latin: Provincia Britannia). By the year 47, the Romans held the lands southeast of the Fosse Way . Control over Wales was delayed by reverses and the effects of Boudica's uprising, but the Romans expanded steadily northward . </P>

When did britain become part of the roman empire
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