webster say's-
1: the laboring class; especially : the class of industrial workers who lack their own means of production and hence sell their labor to live.
2: the lowest social or economic class of a community.
(http://www.merriam-webster.com/dictionary/proletariat)
there's also some website called wikipedia...
this is the beginning of what they say-
The origin of the name is presumably linked with the census, which Roman authorities conducted every five years to produce a register of citizens and their property from which their military duties and voting privileges could be determined. For citizens with property valued 11,000 asses or less, which was below the lowest census for military service, their children—proles (from Latin proli, "offspring")—were listed instead of their property; hence, the name proletarius, "the one who produces offspring". The only contribution of aproletarius to the Roman society was seen in his ability to raise children, the future Roman citizens who can colonize new territories conquered by the Roman Republic and later by the Roman Empire. The citizens who had no property of significance were called capite censi because they were "persons registered not as to their property...but simply as to their existence as living individuals, primarily as heads (caput) of a family."[1][2](http://en.wikipedia.org/wiki/Proletariat)
i say it's you..... (unless you're a rich fuck)