A constitution is a set of rules for government—often codified as a written document—that lists the powers and functions of a political entity. In the case of countries, this term refers specifically to a national constitution defining the fundamental political principles, and establishing the structure, procedures, powers and duties, of a government. By limiting the government’s own reach, most constitutions guarantee certain rights to the people. The 1969 Bill of Right of the UK and the 1787 Constitution of the US are some of the famous constitutional documents.
