(Applause Books). Oklahoma! opened nearly sixty years ago and instantly made musical theatre history. It was a daring ahead-of-its-time piece of dazzlingly inventive theatre that exploded every myth about what constitutes a successful musical. Revised and updated to include a special section on the Roayl National Theatre's production that Cameron Mackintosh is presenting on Broadway in spring of 2002, OK! The Story of "Oklahoma!" celebrates this watershed work that has taken its place in the pantheon of American musical theatre.