Certain people are remembered throughout history for such chilling and dastardly deeds that their very names are unnerving. Ivan the Terrible and Vlad the Impaler are two such foreboding figures. Others may not have such menacing monikers, but their reputations are just as frightening, such as Attila the Hun and Nero. This inspired series not only reveals the shocking biographical details for some of history's most fascinating, and fearsome, individuals, it enlightens about the places and times in which they lived and the forces at work that shaped them into real-life villains.