the work the best elements from former groups not belonging to the Left" — an effort to further undercut Rosenberg's factional group. Despite the criticism, Rosenberg was named a delegate to the 6th Enlarged Plenum of the CI in February 1926, at which he participated. Expulsions of the left wing of the KPD followed in 1927, but Rosenberg was not himself one of those subject to such treatment. Nevertheless, he quit the KPD in April 1927, moving from the political realm to the field of scholarship. He taught at the University of Berlin and served as the head of an organization called the League of Rights of Man. Years of exile When the Nazi Party came to power in 1933, Rosenberg was dismissed from his university post due to his Jewish ethnicity. Rosenberg emigrated first to Switzerland before moving on to the United Kingdom. From 1934 to 1937 he taught history at the University of Liverpool. He proceeded to the United States in 1937 to take a professorship at Brooklyn College, where he taught and wrote until the end of his life. Death and legacy Arthur Rosenberg died 7 February 1943 in New York City. In the 1960s, his books came to more widespread attention among German historians. Footnotes Works Imperial Germany: The Birth of the German Republic, 1871–1918. Oxford University Press (1931), translation by Ian Morrow (*1896), original: Die Entstehung der deutschen Republik, Berlin, 1930 A History of Bolshevism: From Marx to the First Five Years' Plan. (1932) Fascism as a Mass Movement. (1934) A History of the German Republic, 1918–1930. (1936) Democracy and Socialism: A Contribution to the Political History of the Past 150 Years. (1938) Literatur Karl Christ: Römische Geschichte und deutsche Geschichtswissenschaft. München 1982, , p. 177–186. Mario Keßler: Arthur Rosenberg. Ein Historiker im Zeitalter der Katastrophen (1889–1943).[Böhlau-Verlag, Köln/Wien 2003, . Kurzfassung (vorlaufend): Im Zeitalter der Katastrophen. Arthur Rosenberg (1889–1943). Im Spannungsfeld von Wissenschaft und Politik. VSA-Verlag, 2002, , 39 S. Rosenberg, Arthur. In: Hermann Weber, Andreas Herbst: Deutsche Kommunisten. Biographisches Handbuch 1918 bis 1945. 2., überarb. und stark erw. Auflage, Karl Dietz Verlag, Berlin 2008, . Jürgen von Ungern-Sternberg: "Rosenberg, Arthur." In The Dictionary of British Classicists. Bristol 2005, Bd. 3, pp. 836–838. Francis L. Carsten, "Arthur Rosenberg: Ancient Historian into Leading Communist," Journal of Contemporary History, Vol. 8, No. 1. (Jan., 1973), pp. 63–75. External links Arthur Rosenberg Archive at marxists.org Mario Kessler, Arthur