Proletarian literature (from the Latin proletarius, belonging to the lowest class of Roman citizens) is literary writing by or about working-class people with anticapitalist or prosocialist themes. Proletarian literature emerged internationally on the Socialist and Communist Left after the Russian Revolution, greatly abetted by the Bolshevik commitment to “proletkult,” an acronym for “proletarian cultural-educational organizations” (proletarskie kul’turno-prosvetitel’nye organizatsii). In the United States, a proletarian literary movement—spurred by immigration by European radicals, working-class resistance to World War I, the African American migration, suffragette-era feminism, the formation of the US Communist Party, and the economic collapse of the Depression—evolved after 1917. 
In Marxism, proletarianization is the social process whereby people move from being either an employer, unemployed or self-employed, to being employed as wage labor by an employer. In Marxist theory, proletarianization is often seen as the most important form of downward social mobility