Title :
  Yesteryear
  Series :
  
  Rating :
  
  Overall Ep :
  2
  First Aired :
  15 Sep 1973
  Stardate :
  5373.4
  Director :
  
  Year :
  
  Writers :
  
  Season Ep :
  
 
     Great Moment :
     Finding out about Spock's early life.
	Factoid :
	Although TAS is not considered a canonical part of Star Trek, elements of Spock's backstory established here have made it into official sources and future live-action episodes of TNG.
My year for this episode is estimated from the Stardate; it is one of a group of TAS episodes set between 'The Empath' and 'The Mark of Gideon'.
This episode is a nominee for the DITL "
Best of Trek" award.	
 
Plotline
Spock emerges from the Guardian of Forever to discover that history recorded his death at the age of 7 whilst undergoing the Kahs-wan ordeal. He travels back to the year 2237 to save his own life and restore the correct timeline.