historical geographic location United Kingdom of Great Britain and Ireland Kingdom of Great Britain 1707 1801 https://en.wikipedia.org/wiki/Kingdom_of_Great_Britain A sovereign state in western Europe from 1 May 1707 to 1 January 1801. The state came into being following the Treaty of Union in 1706, ratified by the Acts of Union 1707, which united the kingdoms of England (which included Wales) and Scotland to form a single kingdom encompassing the whole island of Great Britain and its outlying islands, with the exception of the Isle of Man and the Channel Islands. The unitary state was governed by a single parliament and government that was based in Westminster. British Great Britain Kingdom of England Kingdom of Scotland