Amazon.com description: Product Description: American Socialists and Evolutionary Thought, 1870-1920 demonstrates how evolutionary theories fundamentally shaped, and ultimately undercut, the American socialist movement. Mark Pittenger examines the attempts of radicals in the late 19th and early 20th centuries to synthesise the evolutionary ideas of Charles Darwin and Herbert Spencer with socialist philosophy, social theory and political practice. In contrast to authors who have shown the influence of Darwinism on conservative and progressive political ideologies, Pittenger establishes that radicals also took scientific ideas seriously and wanted to link the public fascination with evolution to their own cause.