concepts
libertarianism
Slavery was a near-universal feature of human societies from the emergence of agriculture until its near disappearance between 1770 and 1880. As such, it has played an essential role for millennia, and its complete loss of legitimacy and disappearance in practice is one of the most significant of the changes that mark the advent of modernity. [Source: The Encyclopedia of Libertarianism; Slavery, World]
world slavery