AmericanLiteratureModernismSection One American ModernismSection Two Modern PoetrySection Three American DramaSection Four Modern Novels American Modernism(19181945)American ModernismBackgroundsofAmericanModernismDefinitionandFeaturesofAmericanModernism Background of Modernism1 The Effect of the First World War and the Great Depression:2 New Theories and Ideasa.German:KarlMarxandNietzscheb.Austrian:SigmundFreudc.WilliamJamesandCarlJungd.FrenchImpressionism,GermanExpressionismandCubismImpressioni