Caesar's invasions of Britain

In the course of his Gallic Wars, Julius Caesar invaded Britain twice: in 55 and 54 BC. On the first occasion Caesar took with him only two legions, and effected little beyond a landing on the coast of Kent. The second invasion consisted of 628 ships, five legions and 2,000 cavalry. The force was so imposing that the Britons did not dare contest Caesar's landing in Kent, waiting instead until he began to move inland. Caesar now penetrated into Middlesex and crossed the Thames, but the British prince Cassivellaunus with his war chariots harassed the Roman columns, and Caesar was compelled to return to Gaul after imposing a tribute, which was never paid.

Britain had long been known to the classical world as a source of tin. The coastline had been explored by the Greek geographer Pytheas in the 4th century BC, and may have been explored even earlier, in the 5th, by the Carthaginian sailor Himilco. But to many Romans, the island, lying as it did beyond the Ocean at what was to them the edge of the "known world," was a land of great mystery. Some Roman writers even insisted that it did not exist, and dismissed reports of Pytheas's voyage as a hoax.

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