innovation vs unprecedentedness

innovation

noun
  • The act of innovating; the introduction of something new, in customs, rites, etc. 

  • A change effected by innovating; a change in customs 

  • A newly formed shoot, or the annually produced addition to the stems of many mosses. 

  • Something new, and contrary to established customs, manners, or rites. 

unprecedentedness

noun
  • Quality of being unprecedented. 

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