The history of Wonder Woman stretches back three quarters of a century. In 1941, psychologist William Moulton Marston saw the explosion of popularity around superheroes as an opportunity. He would, he decided, create a character that would embody his belief that women had the natural power to eradicate violence by gifting the fractious world of men with their inherent love, beauty, tolerance and understanding. Marston's previous claim to fame had...