Chapter 3 looks at the social movements of the 1930s and 1940s, their historical uniqueness, and how they gave support to and magnified the strength of labor movements, especially in the South—a distinguishing feature of this era. First and foremost were the struggles of the unemployed, led mostly by leftists, often Communists. The chapter also looks at the role of farmers, sharecroppers, and tenants, as well as the special role of civil rights organizations, north and south.