backstory vs drama

backstory

noun
  • The previous life and experiences of a person, especially a character in a dramatic work, but also a real-life person. 

  • A fictitious account of a person's history designed to conceal their actual history and motives. 

  • A prequel. 

drama

noun
  • A situation in real life that has the characteristics of such a theatrical play 

  • A composition, normally in prose, telling a story and intended to be represented by actors impersonating the characters and speaking the dialogue 

  • Theatrical plays in general 

  • Such a work for television, radio or the cinema (usually one that is not a comedy) 

  • Rumor, lying or exaggerated reaction to life or online events; melodrama; an angry dispute or scene; a situation made more complicated or worse than it should be; intrigue or spiteful interpersonal maneuvering. 

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