In the late third century, the Roman Empire was changing rapidly. Civil war had done much to contribute to its near destruction. Now, the radical  Emperor Diocletian came up with an innovative solution for this - the Tetrarchy. He also decided to confront a strange new religion that was increasingly a threat to the traditional Roman gods - Christianity.

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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.