In ancient Rome, a registered prostitute was called a meretrix while the unregistered one fell under the broad category prostibulae. There were some commonalities with the Greek system, but as the Empire grew, prostitutes were often foreign slaves, captured, purchased, or raised for that purpose, sometimes by large-scale "prostitute farmers" who took abandoned children. Indeed, abandoned children were almost always raised as prostitutes.[23] Enslavement into prostitution was sometimes used as a legal punishment against criminal free women. Buyers were allowed to inspect naked men and women for sale in private and there was no stigma attached to the purchase of males by a male aristocrat.