Which of these famous inventors was the first to appear in a commercial advertisement, creating what many consider the world's first celebrity product endorsement in 1904?

Throughout history, famous inventors and scientists have occasionally lent their names and reputations to commercial products - sometimes with surprising results! This trivia challenges you to identify a genuine historical endorsement that helped revolutionize how products were marketed to the public. Can you separate fact from fiction in the world of invention-based celebrity endorsements?

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