The founding in 1777 of the Journal de Paris, France’s first daily and distinctly commercial paper, represents an early use of disinformation as a tool for political gain, profit, and societal division. To attract a large readership and bar competition for C.W. Gluck’s works at the Paris Opéra, it launched a prolonged campaign of anonymous lies, mockery, and defamation against two prominent members of the Académie Française who wished the Opéra to be open to all deserving composer...