Petit-bourgeois or petty bourgeois * a term that originally referred to the members of the lower middle social classes in the 18th and early 19th centuries. * Starting from the mid-19th century, the term was used by Karl Marx and Marxist theorists to refer to a social class that included shop-keepers and government employees.
Proletariat
* a term used to identify a lower social class, usually the working class; a member of such a class is proletarian. Originally it was identified as those people who had no wealth other than their children.
Peasants
* an agricultural worker who generally works land owned or rented by/from a noble. * bound to the land and could not move or change their occupation unless they became a yeoman (free person), which generally happened by buying their freedom. * The peasant also generally had to give most of their crops to the noble.
Lumpen Proletariat * the "refuse of all classes", including "swindlers, confidence tricksters, brothel-keepers, rag-and-bone merchants, beggars, and other flotsam of society". * a "class fraction" that constituted the political power base for Louis Bonaparte of France in 1848.
Communism * a socio-political movement that aims for a classless and stateless society structured upon common ownership of the means of production, free access to articles of consumption, and the end of wage labour and private property in the means of production and real estate.
Existentialism