past vs past historic tense

past

noun
  • The past tense. 

  • The period of time that has already happened, in contrast to the present and the future. 

adj
  • Of a period of time: having just gone by; previous. 

  • Having already happened; in the past; finished. 

  • Following expressions of time to indicate how long ago something happened; ago. 

  • Of a tense, expressing action that has already happened or a previously-existing state. 

prep
  • Beyond in place or quantity 

  • Any number of minutes after the last hour 

  • Having recovered or moved on from (a traumatic experience, etc.). 

  • No longer capable of. 

  • Passing by, especially without stopping or being delayed. 

adv
  • In a direction that passes. 

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. 

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