Some historians believe Italian forger Tobia Nicotra may have produced hundreds of document and signature forgeries attributed to names like Mozart and Galileo, before he was caught in the 1930s. He faded into obscurity, but his forgeries didn't. And for more than 80 years the University of Michigan housed a Galileo manuscript they didn't know was fake -- until a historian named Nick Wilding called its bluff.

Executive Producers: Maria Trimarchi and Holly Frey
Producer & Editor: Casby Bias

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