 Two years earlier he had told his friend the writer Hector Crémieux that when he was musical director of the Comédie-Française in the early 1850s he swore revenge for the boredom he suffered from the posturings of mythical heroes and gods of Olympus in the plays presented there.Cremieux and Ludovic Halévy sketched out a libretto for him lampooning such characters.By 1858, when Offenbach was finally allowed a large enough cast to do the theme justice, Halévy was preoccupied with his work as a senior civil servant, and the final libretto was credited to Crémieux alone.