announce vs set forth

announce

verb
  • to give public notice, especially for the first time; to make known 

  • to pronounce; to declare by judicial sentence 

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 announce and set forth occurred in a corpus of books? (source: Google Ngram Viewer )