Rule Britannia

David Olusoga shares the true history of the British Empire and what it means today...

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At its height the British Empire ruled over a fifth of the world. But how did a tiny European island claim so much power? That's what historian and David Olusoga finds out in his three-part series as he explores the history of the Empire and why it's so important to understand its legacy.

'More than a quarter of all nations are former British colonies,' explains David.