Administrative geography of the United Kingdom areas and the statistical territories defined with the modern and systems. This structure was formed by the union agreed between the former sovereign states, the Kingdom of England (which included the conquered principality of Wales) and the Kingdom of Scotland in the Treaty of Union and enacted by the Acts of Union 1707 to form the single Kingdom of Great Britain (1707–1800); followed by the Act of Union 1800, which combined Great Britain with the Kingdom of Ireland to form the United Kingdom of Great Britain and Ireland. The independence of the Irish Free State in 1922, following the partition
Constitution of the United Kingdom two Acts of Union which were passed by the Parliaments of both nations. The Treaty, along with the subsequent Acts, brought into existence the Kingdom of Great Britain, uniting the Kingdom of England and the Kingdom of Scotland. Common law legal systems exist in Northern Ireland and in England and Wales, but not in Scotland which has a hybrid system (see Scots law) which includes a great deal of Common Law. Court judgments also commonly form a source of the constitution: generally speaking in English Law, judgments of the higher courts form "precedents" or "case law" that binds lower courts