People who changed the world can be further classified into a few categories in my opinion. Includes inventors, revolutionists, philanthropists and even dictato

People who changed the world can be further classified into a few categories in my opinion. Includes inventors, revolutionists, philanthropists and even dictators. Thomas Alva Edison, Alexander Graham Bell, Bill Gates, Marie Curie, Aryabhata, Mother Teresa, Wright Brothers, Henry Ford, John Vincent Atanasoff,Gutenberg, Hitler to name a few