Whether by sword, axe or guillotine, death by beheading was historically considered the most humane form of death sentence—as long as the executioner was swift, strong and good at hitting his mark. While the practice was never legally supported in the United States, we do give the method a nod in this country whenever we use the term "capital punishment"; the word "capital" is derived from the Latin "capitalis," which translates to "of the head." Here are some of the most famous victims of this gruesome form of execution.