In absolute antiquity, the native
Mesopotamians had no term for the concept of property. The majority of legal documents from Mesopotamia, however, are overwhelmingly concerned with the proper disposition of what modern people would call 'property', with ensuring legal, unchallengeable, and fair treatment of individuals with property claims. While there were no laws prohibiting the alienation—that is, the buying and selling—of land, written records from Mesopotamia indicate a tendency against it. Measures were taken to keep land within a family and to keep it from being broken down into plots too small to be viable agriculturally. Written discussions of private property arguably emerged in the Western tradition at least as far back as
Plato. Before the 18th century, English speakers generally used
property to refer to
land ownership. In England,
property came to have a legal definition in the 17th century. Private property defined as property owned by commercial entities emerged with the great European
trading companies of the 17th century. The issue of the
enclosure of agricultural land in England, especially as debated in the 17th and 18th centuries, accompanied efforts in philosophy and political thought—by
Thomas Hobbes (1588–1679),
James Harrington (1611–1677), and
John Locke (1632–1704), for example—to address the phenomenon of property
ownership. In arguing against supporters of
absolute monarchy, Locke conceptualized property as a natural right that God had not bestowed exclusively on the monarchy. In his
labor theory of property, Locke stated that property is a natural result of labor improving upon nature, and thus by labor expenditure the laborer becomes entitled to its produce. Influenced by the rise of
mercantilism, Locke argued that private property was antecedent to and thus independent of government. Locke distinguished between "common property", by which he meant
common land, and property in consumer goods and producer-goods. His chief argument for property in land ownership was that it led to improved land management and cultivation over common land. In the 18th century, during the
Industrial Revolution, the moral philosopher and economist
Adam Smith (1723–1790), in contrast to Locke, distinguished between the "right to property" as an acquired right, and natural rights. Smith confined natural rights to "liberty and life". Smith also drew attention to the relationship between employee and employer and identified that property and civil government were dependent upon each other, recognizing that "the state of property must always vary with the form of government". Smith further argued that civil government could not exist without property, as the government's main function was to define and safeguard property ownership. In the 19th century, German economist and philosopher
Karl Marx (1818–1883) provided an influential analysis of the development and history of property formations and their relationship to the technical
productive forces of a given period. Marx's conception of private property has proven influential for many subsequent economic theories and for
communist,
socialist, and
anarchist political movements, and led to the widespread association of private property—particularly private property in the
means of production—with
capitalism. == Legal and real-world aspects ==