Aside from Superman and Batman, no superhero has lasted as long or commanded so vast and wildly passionate a following as Wonder Woman. Like every other superhero, Wonder Woman has a secret identity. Unlike every other superhero, she also has a secret history. Harvard historian and New Yorker staff writer Jill Lepore has uncovered an astonishing trove of documents, including the never-before-seen private papers of William Moulton Marston, Wonder Woman’s creator.