 The utilization of propaganda by Stalin, Hitler and Mussolini popularize the false impression of propaganda that hid the truth for an extended time.In addition, there are complex influences that emerged during the propaganda campaigns of the Great War (1914-18) and Russian Revolution (1917) such as telegraphs, newspapers, photography, radio, film, large corporations seeking new markets, rise of reform-minded journalism, and the influence of art movements, psychology, sociology, and marketing.The variation of propaganda and psychological warfare are essentially organized processes of persuasion.However, empirical research casts doubt on the role of propaganda in inciting hatred, finding that it is much less able to change minds than is often assumed.For example, a 2017 review of literature says