"The Great Man theory is a philosophical theory that aims to explain history by the impact of “great men”, or heroes: highly influential individuals who, due to either their personal charisma, intelligence and wisdom or Machiavellianism, used power in a way that had a decisive historical impact. For example, a scholarly follower of the Great Man theory would be likely to study the Second World War by focusing on the big personalities of the conflict – Sir Winston Churchill, Franklin Delano Roosevelt, Joseph Stalin, Charles de Gaulle (Allies); Adolf Hitler, Benito Mussolini, (Axis); et al. – and view all of the historical events as being tied directly to their own individual decisions and orders."

Great Man theory - Wikipedia, the free encyclopedia