WORLD CIVILIZATION

Detailed explanation-1: -An empire is an aggregate of many separate states or territories under a supreme ruler or oligarchy. This is in contrast to a federation, which is an extensive state voluntarily composed of autonomous states and peoples.

Detailed explanation-2: -A colony is a territory subject to a form of foreign rule. Though dominated by the foreign colonizers, the rule remains separate to the original country of the colonizers, the metropolitan state (or “mother country"), within the shared imperialist administration.

Detailed explanation-3: -em·pire ˈem-ˌpī(ə)r. : a major political unit with a large territory or a number of territories or peoples under one ruler with total authority. especially : one having an emperor as chief of state. : the territory of such a unit. : something resembling an empire.