discovery vs publication

discovery

noun
  • The discovering of new things. 

  • A pre-trial phase in which evidence is gathered. 

  • Something discovered. 

  • Materials revealed to the opposing party during the pre-trial phase in which evidence is gathered. 

publication

noun
  • The communication of information to the general public etc. 

  • The act of publishing printed or other matter. 

  • An issue of printed or other matter, offered for sale or distribution. 

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