antedate vs shoot first and ask questions later

antedate

verb
  • To occur before an event or time; to exist further back in time. 

  • To find earlier citational evidence for a term. 

  • To assign a date to a document or action earlier than the actual date. 

noun
  • Prior date; a date antecedent to another which is the actual date. 

shoot first and ask questions later

verb
  • To take hasty, immediate action with serious consequences, without first adequately investigating the situation. 

  • To act boldly. 

How often have the words antedate and shoot first and ask questions later occurred in a corpus of books? (source: Google Ngram Viewer )