On today’s date in 1956, “Candide,” a 20th century musical based on an 18th century satire by the French writer Voltaire, opened on Broadway in New York City. The libretto was by the successful playwright Lillian Hellman. The song lyrics were crafted by Richard Wilbur, one of America’s finest poets. The stage direction was by Sir Tyrone Guthrie, a legendary name in British theater. The music was by Leonard Bernstein. Maybe it was a case of too much of a good thing: “Candide” closed after just two months. Some said the show’s satire went over the heads of the audience, others that the poor box office was due to the lack of a big Broadway star in the original cast. Early in 1957, shortly before the initial run of “Candide” closed, Bernstein conducted its overture at Carnegie Hall as part of a New York Philharmonic concert—and that bit of the show, at least, became an instant and lasting success. Bernstein tinkered with the rest of “Candide” right up to his death in 1990, generating several performing versions of his problematic musical. With the benefit of hindsight, many critics now regard “Candide” as Bernstein’s masterpiece.