Complex sentence: Roy Franklin Nichols (March 3,1896--January 12,1973) was an American historian, who won the 1949 Pulitzer Prize for History for "The Disruption of American Democracy".
Split into simpler sentences: Roy Franklin Nichols (March 3,1896--January 12,1973) was an American historian and a Pulitzer Prize winner. He won the Pulitzer Prize for History for "The Disruption of American Democracy".