Early History

Bones and flint tools found in Norfolk and Suffolk show that Homo erectus lived in what is now England about 700,000 years ago. At this time, England was joined to mainland Europe by a large land bridge. The current position of the English Channel was a large river flowing westwards and fed by tributaries that would later become the Thames and the Seine. This area was greatly depopulated during the period of the last major ice age, as were other regions of the British Isles. In the subsequent recolonisation, after the thawing of the ice, genetic research shows that present-day England was the last area of the British Isles to be repopulated, about 13,000 years ago. The migrants arriving during this period contrast with the other of the inhabitants of the British Isles, coming across lands from the south east of Europe, whereas earlier arriving inhabitants came north along a coastal route from Iberia. These migrants would later adopt the Celtic culture that came to dominate much of western Europe.

The last centuries before the Roman invasion saw increasing sophistication in British life. About 100 BC, iron bars began to be used as currency, while internal trade and trade with continental Europe flourished, largely due to Britain's extensive mineral reserves. Coinage was developed, based on continental types but bearing the names of local chieftains. This was used in south-east England, but not in areas such as Dumnonia.

As the Roman Empire expanded northwards, Rome began to take interest in Britain. This may have been caused by an influx of refugees from Roman occupied Europe, or Britain's large mineral reserves.

The Roman Conquest

By AD 43, the time of the main Roman invasion, Britain had already been the target of frequent invasions, planned and actual, by forces of the Roman Republic and Roman Empire. It was first invaded by the Roman dictator Julius Caesar in 55 BC, but it was conquered more fully by the Emperor Claudius in 43 AD. Like other regions on the edge of the empire, Britain had long enjoyed trading links with the Romans, and their economic and cultural influence was a significant part of the British late pre-Roman Iron Age, especially in the south. With the fall of the Roman Empire 400 years later, the Romans left England.