The Acts of Union of 1706 and 1707 saw the creation of Great Britain NOT the United Kingdom

The Act of Union in 1801 saw the creation and naming of the United Kingdom of Great Britain and Ireland

In 1927 after the creation of the Irish Free State it became The United Kingdom of Great Britain and Northern Ireland

Should Scotland vote for independence on the 18th September this year then in 2016 it will become The United Kingdom of Britain and Northern Ireland