Why did Arabia rise so rapidly in the seventh century AD to become the dominant global superpower? In this episode, we look at a fascinating new theory.

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Find my latest book, Justinian's Empire, on Amazon.com and Amazon.co.uk. For German listeners, find the German translation of the first book in my series on the 'Fall of the Roman Empire', Die römische Revolution, on Amazon.de. Finally check out my new YouTube videos on the fall of the Roman Empire.