According to political scientist Larry Diamond, it consists of four key elements: The term originates from the Greek δημοκρατία (dēmokratía) "rule of the people", which was found from δῆμος (dêmos) "people" and κράτος (krátos) "power" or "rule", in the 5th century BC to denote the political systems then existing in Greek city-states, notably Athens; the term is an antonym to ἀριστοκρατία (aristokratía) "rule of an elite". While theoretically these definitions are in opposition, in practice the distinction has been blurred historically. The political system of Classical Athens, for example, granted democratic citizenship to an elite class of free men and excluded slaves and women from political participation. Democracy contrasts with forms of government where power is either held by an individual, as in an absolute monarchy, or where power is held by a small number of individuals, as in an oligarchy. Characteristics History Ancient origins Middle Ages Robert A.