introduce vs set forth

introduce

verb
  • To bring (something) into practice. 

  • To cause (someone) to be acquainted (with someone else). 

  • To add (something) to a system, a mixture, or a container. 

  • To make (something or someone) known by formal announcement or recommendation. 

set forth

verb
  • To present for consideration; to propose. 

  • To begin a journey or expedition. 

  • To start. 

  • To state; describe; give an account of. 

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