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"Yesteryear" was the second episode of Star Trek: The Animated Series. It was produced in TAS' first season and debuted on 15 September 1973. The episode was written by D.C. Fontana and directed by Hal Sutherland. It was novelized in Star Trek: Log One by Alan Dean Foster in June 1974 and subsequently adapted by View-Master. The episode's design of ShiKahr was added to the remastered edition of TOS episode: "Amok Time". Events from the story were revisited in TOS - Crucible novel: The Fire and the Rose, DTI novel: Forgotten History, and in TOS movie & novelization: Star Trek.

Introduction[]

VHS teaser
Returning from a mission to the past, Mr. Spock discovers he has erased his own existence!

Log entries[]

Captain's log, stardate 5373.4.
After an unexpected delay of some substantial awkwardness, we resumed our original course and are now lying in orbit around the planet of the time vortex. Commander Spock and I will land to carry out basic research for the Institute of Galactic History, in conjunction with and in support of similar research to be conducted by historians Jan Grey, Loom Aleek-Om, and Ted Erickson. Dr. Leonard McCoy will also accompany us, as interested onlooker. (Novelization)
Excerpt from the log of Capt. James Kirk.
Time travel — exploring the past in person — what an intriguing way to research history! Yet there is always the danger that the researcher may innocently set in motion a chain of past events that can drastically alter the present… Starship USS Enterprise has discovered the one spot in the Galaxy where time travel is a possibility: the Time Vortex planet. At a certain point on this planet's surface, all the space-time force fields of the Galaxy come into focus. This point, a crossroads of space and time, is a natural stone arch with a round opening, known as the Guardian. The Guardian has an intelligence of its own. It can program itself to admit visitors to explore any requested time in the past, anywhere in the Galaxy — on immediate demand. Or it can project images of past events for viewing. We are now orbiting the Time Vortex planet. Our mission: to assist in the investigation of Federation history. (View-Master adaptation)
Captain's log, stardate 5373.4.
We are in orbit around the planet of the time vortex, the focus of all the timelines of our galaxy. Our mission is to assist a team of historians in the investigation of Federation history. (Episode)
Captain's log, supplemental.
When we were in the time vortex, something appears to have changed the present as we know it. No one aboard recognizes Mr. Spock. The only answer is that the past was somehow altered. (Episode)
Spock's personal log, stardate 5373.9, subjective time.
The timeline seems to have changed again. Yet I do not believe I have done anything to disrupt it. My memory is quite clear regarding the date my cousin saved my life, and it is tomorrow. The kahs-wan ordeal is an ancient rite of warrior days. When Vulcans turned to logic, they reasoned they must maintain the tests of courage and strength to keep pure logic from making them weak and helpless. (Episode)
Personal log, stardate 5373.9, subjective time.
The time line seems to have changed once more, yet I cannot discover on thinking back anything I have done that might have affected it. My memory is quite clear regarding the actual day my cousin saved my life. That day is tomorrow. The Kahs-wan is an ancient rite of Vulcan's warrior days. When Vulcans turned to logic as the ruling element of their lives, they reasoned that it was necessary to maintain the old tests of strength and courage. Otherwise devotion to pure reason might make them grow weak and incapable of defending themselves from barbarians who might be less advanced mentally and socially. This, in itself, was of course a logical decision. (Novelization)
Personal log.
The boy Spock should be moving toward the L-langon Mountains. He — I — had much to prove to myself. The personal ordeal upon which I embarked was meant to determine the course my life would take. (Episode)
Personal log.
The boy Spock should be moving toward the L-langon Mountains. He . . . I . . . had much to prove to myself. The personal ordeal, I now remember, on which I embarked was meant to determine the course my life would take. Many things are coming back to me now, as I retrace my steps of thirty years past and as I become more familiar with this time of my youth. (Novelization)
Personal log.
Something unexpected has again occurred. The sehlat, I-Chaya, was struck by the poisonous claws of the le-matya he fought. He is dying, unless we can find a healer, and soon. (Episode)

References[]

Characters[]

Episode characters[]

Loom Aleek-OmBatesTed Erickson (aka Paul Bates) • Amanda GraysonMeijan GreyGuardian of ForeverI-ChayaJames T. KirkLeonard McCoySarekMontgomery ScottSepekSofekSpockStarkHikaru SuluThelin th'ValrassNyota UhuraLe-matya
Referenced only
T'PelSasak

Novelization characters[]

Loom Aleek-OmBatesEe-chiyaTed EricksonAmanda GraysonMeijan GreyGuardian of ForeverJames T. KirkJohn KyleLeonard McCoySarekMontgomery ScottSepekSofekSpockStarkHikaru SuluThelin th'ValrassNyota UhuraVassilyLe-matya
Referenced only
Pallas AthenaPraxitelesSang Ho HihnT'PelSasak

View-Master characters[]

Loom Aleek-OmBatesEe-chiyaTed EricksonAmanda GraysonMeijan GreyGuardian of ForeverJames T. KirkLeonard McCoySarekMontgomery ScottSepekSofekSpockStarkThelin th'ValrassLe-matya

Starships and vehicles[]

desert flyerUSS Enterprise (Constitution-class) • groundcar • Vulcan "Tube Ship"
Referenced only
freighterScopus (shuttle) • shuttle

Locations[]

Time Vortex planet (Historical InstituteOyya) • Vulcan (L-langon MountainsShiKahrVulcan's Forge)
Referenced only
AureliaCanabbra IV (Temple of Halos) • Earth (South Pacific) • LepidoptLunaportOrionQahtan (Aljaddean Wall) • T'KhutVulcan (Dycoon)

Plants and animals[]

le-matyasehlatsucker vines

Races and cultures[]

AndorianAurelianHumanOrionVulcan

States and organizations[]

Empire of OrionInstitute of Galactic HistoryStarfleetStarfleet AcademyUnited Federation of Planets

Science and technology[]

antidoteannual physicalcommunicatorlibrary computermedical scannertime traveltransportertricorderviewscreen

Ranks and titles[]

ambassadorcaptaincommanderdoctorEartherengineering officerensignfirst officerhealerhistorianlieutenantlieutenant commander

Other references[]

briefing roomButterfly Warscaptain's logcaptain's log, USS Enterprise (NCC-1701), 2269citycivilizationcrimedaydeserteuthanasiaFederation CharterforestglassgoldhangarhologramjellyfishKahs-wankilometerlionlogiclogicmammalmarriagemillipedemissilemissile batterymountainmountain lionoceanorbital fortressOrganian Peace Treatypandaphaserphilosophyplateaupractical jokequartermasterradiationreptilerombouton juicesensorstratospherestunTasmeentattooteatranquilizer darttransporter roomtreevolcanoVulcan nerve pinchwaryear

Appendices[]

Background[]

View-Master adaptation[]

  • The adaptation was packaged under the title "Mr. Spock's Time Trek" in 1974. The packaging contained three reels of captioned 3-D slides from the episode and a 16-page, two-color illustrated booklet.
  • The booklet faithfully adapted the episode, with much of the dialogue transcribed verbatim. This adaptation differed from the episode only in a few details. Young Spock was said to be ten years old, rather than seven. Hikaru Sulu was not present. The Vulcan healer did not doubt Spock's word. Young Spock had two tormentors in the booklet, as per the final draft script dated April 20, 1973, whereas three Vulcan boys were seen taunting Spock in the aired episode and on the View-Master slide.
  • The booklet clarified a few story details. It did not name T'Khut, but did call it the twin planet of Vulcan. Events were specified as taking place one month prior to Spock's actual kahs-wan. The desert flyer was called an air car. Ted Erickson was explicitly identified as being in the time vortex with Kirk and Spock, as in the final draft script, whereas TOS - Crucible novel: The Fire and the Rose stated that it had been Paul Bates.

Novelization[]

Related media[]

Spock's kahs-wan period featured in

sehlats were in, or mentioned in

le-matya were in, or mentioned in

Video releases[]

Images[]

Connections[]

Timeline[]

published order
Previous episode:
The Infinite Vulcan
TAS episode produced Next episode:
Beyond the Farthest Star
Previous episode:
Beyond the Farthest Star
TAS episode aired Next episode:
One of Our Planets Is Missing
Previous story:
Beyond the Farthest Star
Log One
Logs One
Next story:
One of Our Planets Is Missing
chronological order
Previous Adventure:
DTI: Forgotten History
Chapter 3, Section 3
Memory Beta Chronology Next Adventure:
The Fire and the Rose
Previous Adventure:
Beyond the Farthest Star
Pocket Next Adventure:
One of Our Planets Is Missing
The above chronology placements are based on the primary placement in 2269.
The Pocket Books Timeline places events from this story in one other timeframe:
Previous Adventure:
The Better Man (Chapter 1, Section 4)
2237 Next Adventure:
Sarek (Chapter 6)


Production history[]

15 September 1973
First aired on NBC
June 1974
Star Trek: Log One novelization by Alan Dean Foster was first published
1974
View-Master adaptation was published
April 1985
Released on VHS in the UK in Volume One of "The Cartoon Adventures of Gene Roddenberry's Star Trek" along with three other stories
July 1989
Released on VHS in Volume Two of "The Animated Adventures of Gene Roddenberry's Star Trek" along with Beyond the Farthest Star
20 March 1990
Released on LaserDisc
2 December 1991
Released on VHS in the UK in Volume One of "The Animated Adventures of Gene Roddenberry's Star Trek" along with three other stories
8 March 1997
Released on LaserDisc in Japan
1997
Re-released on LaserDisc
2003
TAS trading card set released, Star Trek The Complete Animated Adventures (Rittenhouse Archives)
November 2006
Released on DVD as part of "Star Trek: The Animated Series"
November 2016
Released on Blu-ray as part of "Star Trek: The Animated Series"
Translations[]
1993
German : Die Täuschung, translated by Lore Straßl. (Goldmann)
1994
Romanian : Anul de ieri, translated by Florin Șlapac. (Editura Teora)

External link[]

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