LAST UPDATED AT 01:00 ON Wed 20 May 2009

Leon Trotsky, 1898. Trotsky became a member of the Social Democrat Workers’ Party in 1896. He was arrested by the Czar’s police in 1898, then deported to Siberia in 1900. Image courtesy of the Library of Congress
Lee Harvey Oswald, 1963. Image courtesy of the Dallas Municipal Archives, City of Dallas