Also, the evolution of the constitution of the United Kingdom began at that time. Also, the UK does not have a codified constitution which is a single document that some countries like USA, France and others have. The written constitution of the United States was enacted in 1789 and was followed by France. So the United Kingdom has an unwritten constitution which is not a single document, but the constitutional rule of this country found in some sources such as the Parliament Act, case law, among others and other political parties. Otherwise, the constitution of the United Kingdom was added by the Parliament Act. This means that England has its own legal system and its own analysis. Therefore, the Parliament Act included the constitution of the United Kingdom, judicial decisions, the development of constitutional conventions and other political parties