What is a superhero? Meet 20 real people who have accomplished incredible things--and discover your own special powers You don't need a mask or cloak to be a hero, and you don't need superpowers, either- just courage, determination, and hard work. Throughout history, there have been many so-called "ordinary" people who used their talents to make our world a better place. Here are 20 such men and women, from suffragettes and scientists...