Though it is often said that the UK lacks a constitution, this refers largely to a narrow approach in which a constitution is written and codified in one document such as that of the U.S. In fact, the UK does have a constitution and one which is far from unwritten as it is found amongst an array of legal and non-legal sources dating back to 1215 where for the first time the power of the King was restrained. Change of the UK constitution can, and does, occur in a number of different ways. The most drastic and difficult of these would be to change the nature of it