circulate vs make known

circulate

verb
  • to become widely known 

  • Of decimals: to repeat. 

  • to move in circles or through a circuit 

  • to cause (a person or thing) to move in circles or through a circuit 

  • to move from person to person, as at a party 

  • to spread or disseminate 

make known

verb
  • To announce (some information) generally. 

  • To disclose (a secret). 

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