It started with an inconsequential piece of military intelligence, scrawled on a piece of paper and left in a waste paper basket. But over the next decade, the infamous Dreyfus affair would mutate into a scandal that shook nineteenth-century France and stunned the world.

Ruth Harris is a Professor of History at the University of Oxford and author of 'The Man on Devil's Island'. She joins us to explain what a Jewish artillery officer's wrongful conviction tells us about the deep divisions within French society, and explains its long-lasting implications for modern nationalism and even the Zionist movement.

Produced by James Hickmann and edited by Dougal Patmore.

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