Canada Constitution

Constitution: made up of unwritten and written acts, customs, judicial decisions, and traditions; the written part of the constitution consists of the Constitution Act of 29 Mars 1867, which created a federation of four provinces, and the Constitution Act of 17 Avril 1982, which transferred formal control over the constitution from Britain to Canada, and added a Canadian Charter of Rights and Freedoms as well as procedures for constitutional amendments

Source: CIA World Factbook - Version du Mai 16, 2008