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Period: 6000 BCE to 6000 BCE
The British Isles are formed as water levels rise separating them from mainland Europe.
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Period: 2200 BCE to 2200 BCE
The construction of Stonehenge is completed
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Period: 600 BCE to 600 BCE
The Celtic peoples begin to arrive and establish their culture.
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Period: 55 BCE to 55 BCE
Roman leader Julius Caesar invades Britain, but withdraws.
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Period: 43 to 43
The Roman Empire invades Britain and makes Britannia a Roman province
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Period: 50 to 50
The Romans found the city of Londinium (which later becomes London).
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Period: 122 to 122
Roman Emperor Hadrian orders the construction of Hadrian's Wall.
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Period: 410 to 410
The last of the Romans leave Britain.
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Period: 450 to 450
The Anglo-Saxons begin to settle in Britain. They rule much of the land until the Vikings arrive.