The common law is a system of customary law which originated in Praetonia and has since spread to other countries. The collective area where the common law dominates is known as the Commonwealth (or Commonweal'). The common law, whose origins lie in Christianity and legalism, is not a codified system of law or government or a political philosophy; as customary law, its interpretations vary between the cultures which practice it. The varying practices of the common law are unified by its major philosophical grounding in self-ownership, in which it is prohibited to initiate force against another person. Countries which practice the common law do not have governments and are anarchical societies.