anachronism vs chronological error

anachronism

noun
  • A person or thing which seems to belong to a different time or period of time. 

  • A chronological mistake; the erroneous dating of an event, circumstance, or object. 

  • The aberrant projection of the present onto the past. 

chronological error

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