Wonder . Woman, created in 1941, is the most popular female superhero of all time. . Aside from . Superman and . Batman, no superhero has lasted as long or commanded so vast and wildly passionate a following. . Like every other superhero, . Wonder . Woman has a secret identity. . Unlike every other superhero, she has 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 . Womans creator. . Beginning in his undergraduate years at . Harvard, . Marston was influenced by early suffragists and feminists. . In the 1920s, . Marston and his wife, . Sadie . Elizabeth . Holloway, brought into their home . Olive . Byrne, the niece of . Margaret . Sanger, one of the most influential feminists of the twentieth century. . The . Marston family story is a tale of drama, intrigue, and irony. . In the 1930s, . Marston and . Byrne wrote a regular column for . Family . Circle celebrating conventional family life, even as they themselves pursued lives of extraordinary nonconformity. . Marston, internationally known as an expert on truth--he invented the lie detector test--lived a life of secrets, only to spill them on the pages of . Wonder . Woman. . The . Secret . History of . Wonder . Woman is a tour de force of intellectual and cultural history. . Wonder . Woman, . Lepore argues, is the missing link in the history of the struggle for womens rights--a chain of events that begins with the womens suffrage campaigns of the early 1900s and ends with the troubled place of feminism a century later.