belief vs dogma

belief

noun
  • Faith or trust in the reality of something; often based upon one's own reasoning, trust in a claim, desire of actuality, and/or evidence considered. 

  • Mental acceptance of a claim as true. 

  • Religious faith. 

  • One's religious or moral convictions. 

  • The quality or state of believing. 

  • Something believed. 

dogma

noun
  • An authoritative principle, belief or statement of opinion, especially one considered to be absolutely true and indisputable, regardless of evidence or without evidence to support it. 

  • A doctrine (or set of doctrines) relating to matters such as morality and faith, set forth authoritatively by a religious organization or leader. 

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