For local governments, where does the power come from? (from which level of government? )

A local government is a form of public administration which, in a majority of contexts, exists as the lowest tier of administration within a given state. ... Local governments generally act within powers delegated to them by legislation or directives of the higher level of government.

classical republicanism, also known as civic humanism, is a form of republicanism  developed in the renaissance inspired by the governmental forms and writings of  classical  antiquity, especially such  classical  writers as aristotle, polybius, and cicero.

answer; acquired mainly during early childhood;