"First in a dream then into my office came a centuries old ghost, tapping on my desk with a fan." The mother of emperors, kings and queens, herself sole sovereign over half the world for fifty-one years, Juana was Archduchess of Austria, Queen of Castile, Queen of Aragon, Sicily, Sardinia, Naples, Mexico, Peru and "all the lands to the west of Africa." Yet Simon & Schuster's great reference book The Timetables of History does not even mention...