may also be used to describe something that was always private, but heavily regulated, which becomes less regulated through a process of deregulation. The term may also be used descriptively for something that has always been private, but could be public in other jurisdictions. There are also private entities that may perform public functions. These entities could also be described as privatized. Privatization may mean the government sells state-owned businesses to private interests, but it may also be discussed in the context of the privatization of services or government functions, where private entities are tasked with the implementation of government programs or the performance of government services. Gillian E. Metzger has written that: "Private entities [in the US] provide a vast array of social services for the government; administer core aspects of government programs; and perform tasks that appear quintessentially governmental, such as promulgating standards or regulating third-party activities." Metzger mentions an expansion of privatization that includes health and welfare programs, public education, and prisons. History Pre-20th century The history of privatization dates from Ancient Greece, when governments contracted out almost everything to the private sector. In the Roman Republic private individuals and companies performed the majority of services including tax collection (tax farming), army supplies (military contractors), religious sacrifices and construction. However, the Roman Empire also created state-owned enterprises—for example, much of the grain was eventually produced on estates owned by the Emperor. David Parker and David S. Saal suggest that the cost of bureaucracy was one of the reasons for the fall of the Roman Empire. Perhaps one of the first ideological movements towards privatization came during China's golden age of the Han Dynasty. Taoism came into prominence for the first time at a state level, and it advocated the laissez-faire principle of Wu wei (無為), literally meaning "do nothing". The rulers were counseled by the Taoist clergy that a strong ruler was virtually invisible. During the Renaissance, most of Europe was still by and large following the feudal economic model. By contrast, the Ming dynasty in China began once more to practice privatization, especially with regards to their manufacturing industries. This was a reversal of the earlier Song dynasty policies, which had themselves overturned earlier policies in favor of more rigorous state control. In Britain, the privatization of common lands is referred to as enclosure (in Scotland as the Lowland Clearances and the Highland Clearances). Significant privatizations