Throughout human history, and regardless of the label under which any have operated, every political system has been premised on the arrogated authority to preempt decision making over the lives and property interests of individuals. This is the implicit meaning of "eminent domain": the state is the ultimate owner of all within its boundaries.

In this sense, King George III was a socialist, as were the colonials who became the "Founding Fathers" and expelled the British (if you doubt this, ask what became of the lives and properties of Loyalists at the end of the Revolutionary War!) The American Civil War was fought by two socialist camps: the North against the South, each of whom claimed the authority to impose their wills upon the lives and property of their respective citizenries.