Yesteryear (Episode)

Yesteryear

"Yesteryear"

Series	Star Trek: The Animated Series
Season	1
Episode	1
Production Number	03
Previous	The Infinite Vulcan (TAS 02)
Next	Beyond the Farthest Star (TAS 04)
Released	15 Sep 1973
Advertising	Amazon

Prime Timeline
(The root of all realities)

Stardate 5373.4: Spock travels back in time to prevent his death as a boy.

Federation personnel, including Kirk and Spock, explore the planet Orion's past using the Guardian of Forever. When they return, no one recognizes Mr. Spock: for the past five years, the Enterprise's first officer has been an Andorian named Thelin. Ship's records reveal that Sarek and Amanda's son was killed at the age of seven, and that the couple separated after their loss. Spock recalls that, years before during his kahs-wan — a Vulcan coming-of-age ritual — a distant cousin, Selek, saved his life. Spock realizes that he must return through the Guardian and become Selek to rectify the distorted timeline. Arriving in his home city of ShiKahr, Spock saves his younger self's life, but the boy's pet sehlat, I-Chaya, is gravely wounded. Given the choice of keeping his pet alive for a short time longer or offering the sehlat a dignified death, young Spock chooses the latter and, in doing so, decides to live by his Vulcan heritage. The elder Spock returns to the future to find the timeline restored to normal, and resumes his station aboard the Enterprise.

Image Gallery

Related Data

Astrometrics	Earth; Llangon Mountains; Luna; Lunaport; Orion; ShirKahr; Time Planet; Vulcan; Vulcan's Forge
Chronology	Prime Timeline; Myriad Universes; AS03 Timeline; 2235; 2237; 20 Tasmeen 8877 (Vulcan Calendar); 2269; Stardate 5373.4-5373.9
Culture	gods; kahs-wan; marriage; Vulcan mythology
Education	doctor; doctorate; historian; physician
Food
People	Aleek-Om; Bates (AS03); Erikson; Amanda Grayson; Amanda Grayson (AS03); Grey; Guardian of Forever; I-Chaya; James T. Kirk; Leonard McCoy; Leonard McCoy (AS03); Sarek; Sarek (AS03); Sasak; Montgomery Scott; Spock; Sulu; T'Pel; Thelin (AS03); Uhura; Vulcan bullies; Vulcan Healer
Politics	Starfleet; Starfleet Ranks; United Federation of Planets; war
Science & Technology	alternate timelines; antidote; communicator; computer; hypospray; nerve pinch; orbit; poison; tears; time travel; transporter; tricorder; venom; warp nacelle
Ships & Vehicles	Constitution class; U.S.S. Enterprise NCC-1701; U.S.S. Enterprise NCC-1701 (AS03); hover car; shuttlecraft; Vulcan ship (2230s)
Xenology	Andorians; Aurelians; Humans; hybrids; le matyas; Orions; sehlats; Vulcan carnivorous plants; Vulcans
Miscellaneous	bridge; briefing room; bullying; commanding officer; first officer; logs; sickbay; Starfleet Uniforms (2266); transporter room