Kingdom of Great Britain
The Kingdom of Great Britain, officially Great Britain was a sovereign state in western Europe from Sunday, May 1, 1707, to Wednesday, December 31, 1800. The state came into being following the Treaty of Union in 1706, ratified by the Acts of Union 1707, which united the Kingdom of England and Kingdom of Scotland to form a single kingdom encompassing the whole island of Great Britain and its outlying islands. It did not include Ireland, which remained a separate realm within the British Empire. The unitary state was governed by a single parliament and government, based at Westminster. The former kingdoms had been in personal union since James VI, King of Scots, became King of England and King of Ireland in 1603 following the death of Queen Elizabeth I, bringing about a "Union of the Crowns".