past historic tense vs simple past

past historic tense

noun
  • A tense used in some languages (such as French and Italian) in narrative, and in spoken language primarily when reading narrative or in storytelling, for completed actions in the past or in speaking of the dead. It is semantically the same as the simple past in many languages, including English. 

simple past

noun
  • A tense used to describe something that happened in the past, formed by the inflection of a single word, without any auxiliary verb such as be or have. 

How often have the words past historic tense and simple past occurred in a corpus of books? (source: Google Ngram Viewer )