From Wikipedia... Great Britain is the political term describing the political union of the kingdoms of England and Scotland made on 1 May, 1707 under Queen Anne of England - "the two kingdoms of Scotland and England shall...be united into one kingdom by the name of Great Britain".  It existed until 1801 when Great Britain and Ireland united to form the United Kingdom of Great Britain and Ireland. Satelite Image of Great Britain And Northern Ireland now known as the United Kingdom. Partial Lyrics: Rule Britannia! When Britain first, at Heaven's command Arose from out the azure main; This was the charter of the land, And guardian angels sang this strain: "Rule, Britannia! rule the waves: "Britons never will be slaves."