Birr vs Cork

Birr

name
  • A town in County Offaly, Ireland. 

  • A surname. 

  • A community in Middlesex Centre, Middlesex County, Ontario, Canada. 

  • A municipality in Aargau canton, Switzerland. 

Cork

name
  • County in the Republic of Ireland. (County Cork) 

  • Principal city of County Cork. 

How often have the words Birr and Cork occurred in a corpus of books? (source: Google Ngram Viewer )