The world has known many great leaders, especially in the post-Civil War era. Winston Churchill, Martin Luther King, Jr., and Harry Truman all rank with the most prominent leaders of all time. However, in my opinion President Franklin Roosevelt made the most difference out of anybody in this century. He began a new era in American history by ending the Great Depression that the country had succumbed to in 1929. Without him ending the Depression, who knows where this country could have gone? His social reforms gave most people a new perspective ....