United Kingdom England LanguaL curation note: US FDA 1995 Code: GB01 The largest and most populous constituent country of the United Kingdom of Great Britain and Northern Ireland. The subdivisions of England consists of as many as four levels of subnational division and at some levels there are a variety of types of administrative entity. They have been created for the purposes of local government in England. Country United Kingdom England LanguaL curation note: US FDA 1995 Code: GB01 The largest and most populous constituent country of the United Kingdom of Great Britain and Northern Ireland. The subdivisions of England consists of as many as four levels of subnational division and at some levels there are a variety of types of administrative entity. They have been created for the purposes of local government in England.