submission vs throwing of the gauntlet

submission

noun
  • The act of submitting or giving e.g. a completed piece of work. 

  • The act of submitting or yielding; surrender. 

  • A submission hold in wrestling, mixed martial arts, or other combat sports. 

  • The thing which has been submitted. 

  • A subset or component of a mission. 

throwing of the gauntlet

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