Democracy is a form of government in which all eligible citizens are meant to participate equallyin the proposal, development and establishment of the laws by which their society is run. The term originates from the Greek () "rule of the people", which was found from δῆμος (dêmos) "people" and κράτος (kratos) "power" or "rule" in the 5th century BCE to denote the political systems then existing in Greek city-states, notably Athens; the term is an antonym to (aristokratia) "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. In virtually all democratic governments throughout ancient and modern history, democratic citizenship consisted of an elite class until full enfranchisement was won for all adult citizens in most modern democracies through the suffrage movements of the 19th and 20th centuries. The English word dates to the 16th century, from the older Middle French and Middle Latin equivalents.