Claus Oberhauser

How a conspiracy theory about the origins of the French Revolution became steeped in antisemitism. Nine émigrés executed by guillotine, from La Guillotine in 1793 by H. Fleischmann/Wikimedia

Simonini’s letter: the 19th century text that influenced antisemitic conspiracy theories about the Illuminati

The dangerous legacy of a letter received by Augustin Barruel, a French Catholic priest and famous conspiracy theorist, in the early 1800s.

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