England vs United Kingdom of Great Britain and Northern Ireland

England

name
  • Synonym of United Kingdom. 

  • The kingdom established in southeast Britain by Aethelstan of Wessex in 927 and its various successor states, now the largest and most populous of the constituent countries of the United Kingdom; (by extension, sometimes proscribed) the area of this kingdom generally, south of Scotland and east of Wales, including (historical) this area of Celtic and Roman Britain or the post-Roman kingdoms of the Angles and other Germans taken collectively. 

  • A city in Lonoke County, Arkansas, United States. 

  • A habitational surname from Old English. 

United Kingdom of Great Britain and Northern Ireland

name
  • The official name of the United Kingdom (since 1927). 

How often have the words England and United Kingdom of Great Britain and Northern Ireland occurred in a corpus of books? (source: Google Ngram Viewer )