WORLD CIVILIZATION

Detailed explanation-1: -An oligarchy is a form of government where power or authority is in the hands of a small class of privileged people or people who have similar or shared interests.

Detailed explanation-2: -Oligarchy is a form of government in which a small group of people hold most or all political power.

Detailed explanation-3: -The Brahman caste in India, the Spartiates in Sparta, the eupatridae in Athens, the patricians or Optimates in Rome, and the medieval nobility in Europe are various historical examples of the social aristocracy or nobility. Most such social aristocracies both legally and factually have been hereditary aristocracies.

Detailed explanation-4: -Countries under an aristocracy are the UK, Spain, Denmark, India and Nigeria. Under an aristocracy, the government is run by a small elite group known as the privileged class who possess political, economic and social power.

Detailed explanation-5: -: government by the best individuals or by a small privileged class. : a government in which power is vested (see vest entry 2 sense 1a) in a minority consisting of those believed to be best qualified. : a state with such a government.