guildhall vs salon

guildhall

noun
  • A hall where a guild or corporation usually assembles. 

salon

noun
  • A large room, especially one used to receive and entertain guests. 

  • A beauty salon or similar establishment. 

  • An art gallery or exhibition; especially the Paris salon or autumn salon. 

  • A gathering of people for a social or intellectual meeting. 

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