His history of the Armenian Genocide ( 2005 ) continues to generate broad public discussion . His most ambitious project to date has been a four-volume History of the Germans 1815-2007 , with accompanying DVDs by Hermann Pölking . Besides this he has published a history of the GDR and a biography of the Jewish-German writer and satirist Kurt Tucholsky . The social-democratic Friedrich Ebert Foundation awarded him its prize “ Das politische Buch ” ( the political book ) in 2010 for his book '' Karl Marx : An Intellectual Biography '' ( German title : '' Die Geister , die er rief . Eine neue Karl-Marx-Biographie '' ) , that has already been translated into several languages
Armenian Genocide
Armenian Genocide
Rolf Hosfeld