The labor theory of ownership was coined by social reformers in the 18th century to describe private ownership prior to the industrial revolution. The theory is considered the utopian alternative to an oppressive Capitalist system, and is central to Marxist, Communist, Socialist, and Nazi theory. Among these ideologies is the mutual belief that the industrial revolution created a capitalist system that is responsible for all of life’s struggle. The only difference between them is how they sought to eliminate their foes.