How does an aristocracy differ from an oligarchy?

hello,

i'm not so sure but i hope this in anyway.

the president of russia is head of state, and of a multi-party system with executive power exercised by the government, headed by the prime minister, who is appointed by the president with the parliament's approval.

hope this : )

hello,

what started the norman conquest?

profound political, administrative, and social changes in the british isles. last line of my information: )