Franklin Roosevelt: The Greatest President of The 20th Century. This paper argues that Franklin Roosevelt was the greatest president of the 20th century. He saved the American economy from destruction and led the U.S. into superpower status. 6 pgs. 6 f/c. 5b. Pages: 6 Bibliography: 5 source(s) listed Filename: 3281 Greatest President Roosevelt.doc Price: 53.70