Template:Realworld
- For information dealing with this year in the timeline of the fictional Star Trek universe, see 1968.
Production
January
- 2 January - Filming begins on TOS: "Assignment: Earth".
- 5 January - TOS: "The Gamesters of Triskelion" airs.
- 10 January - Filming is completed on TOS: "Assignment: Earth", and the second season of Star Trek.
- 12 January - TOS: "A Piece of the Action" airs. Rachael Harris is born.
- 17 January - Jeff Chase is born.
- 19 January - TOS: "The Immunity Syndrome" airs.
February
- 1 February - John Harrington Bland is born.
- 2 February - TOS: "A Private Little War" airs.
- 3 February - Joe Bennett is born.
- 8 February - Mike Massa is born.
- 9 February - TOS: "Return to Tomorrow" airs.
- 16 February - TOS: "Patterns of Force" airs.
- 22 February - Jeri Ryan is born.
- 23 February - TOS: "By Any Other Name" airs. Craig Hurley is born.
- Star Trek 2 by James Blish is published by Bantam Books.
- Mission to Horatius by Mack Reynolds is published by Whitman Publishing and is the first original Star Trek novel.
March
- 1 March - TOS: "The Omega Glory" airs.
- 8 March - TOS: "The Ultimate Computer" airs.
- 10 March - Rico E. Anderson is born.
- 15 March - TOS: "Bread and Circuses" airs.
- 21 March - Greg Ellis is born.
- 22 March - Story outlines for TOS: "Wink of an Eye", "And the Children Shall Lead", and "The Paradise Syndrome" (titled "The Paleface") are submitted.
- 25 March - Michael Reisz is born.
- 29 March - TOS: "Assignment: Earth" airs as the final episode of the second season.
- Gold Key TOS comic #2: "The Devil's Isle of Space" is published.
April
- 5 April - TOS: "I, Mudd" is repeated.
- 12 April - Alicia Coppola is born. TOS: "Mirror, Mirror" is repeated.
- 19 April - Story outline for TOS: "Spectre of the Gun" (titled "The Last Gunfight") is submitted. Ashley Judd is born. TOS: "The Doomsday Machine" is repeated.
- 21 April - Leslie Silva is born.
- 22 April - Story outline for TOS: "Spock's Brain" is submitted.
- 24 April - Loren L. Coleman is born.
- 26 April - TOS: "Amok Time" is repeated.
- Theodore Sturgeon submits a story outline for a sequel episode to TOS: "Shore Leave".
May
- 1 May - Story outline for TOS: "The Tholian Web" (titled "In Essence - Nothing") is submitted.
- 2 May - Story outline for TOS: "For the World is Hollow and I Have Touched the Sky" is submitted.
- 3 May - TOS: "The Gamesters of Triskelion" is repeated.
- 8 May - Story outline for TOS: "Turnabout Intruder" is submitted.
- 10 May - TOS: "Who Mourns for Adonais?" is repeated.
- 14 May - Revised final draft script for TOS: "Spectre of the Gun" is submitted.
- 16 May - First draft script for TOS: "Elaan of Troyius" is submitted.
- 17 May - TOS: "The Changeling" is repeated.
- 23 May - Filming begins on TOS: "Spectre of the Gun", and the third season of Star Trek.
- 24 May - Story outline for TOS: "Is There in Truth No Beauty?" is submitted. TOS: "Catspaw" is repeated.
- 27 May - Final revised script draft for TOS: "Elaan of Troyius" is submitted.
- 29 May - First draft script for TOS: "The Paradise Syndrome" is submitted.
- 31 May - TOS: "By Any Other Name" is repeated. Filming is completed on TOS: "Spectre of the Gun".
June
- 3 June - Filming begins on TOS: "Elaan of Troyius". Final draft script for TOS: "The Paradise Syndrome" and story outline for "Day of the Dove" are submitted.
- 5 June - Dave Lanphear is born.
- 7 June - First draft script for TOS: "The Enterprise Incident" is submitted with a final draft coming 13 June. TOS: "The Immunity Syndrome" is repeated.
- 10 June - Filming is completed on TOS: "Elaan of Troyius". A deleted scene is filmed today. Kristian Sorensen is born.
- 11 June - Filming begins on TOS: "The Paradise Syndrome".
- 13 June - Story outline for TOS: "Plato's Stepchildren" (titled "The Sons of Socrates") is submitted.
- 18 June - Filming is completed on TOS: "The Paradise Syndrome". First draft script for TOS: "And the Children Shall Lead" is submitted.
- 19 June - Edward Conna is born. Filming begins on TOS: "The Enterprise Incident".
- 21 June - TOS: "The Trouble with Tribbles" is repeated.
- 26 June - Filming is completed on TOS: "The Enterprise Incident".
- 27 June - Paul Rae is born. Filming begins on TOS: "And the Children Shall Lead".
- 28 June - TOS: "The Ultimate Computer" is repeated.
July
- 5 July - Filming is completed on TOS: "And the Children Shall Lead". First draft script for TOS: "Is There in Truth No Beauty?" is submitted as an unsolicited script. TOS: "Journey to Babel" is repeated.
- 8 July - Filming begins on TOS: "Spock's Brain". Gregory A. Weimerskirch is born.
- 12 July - Story outline for TOS: "The Mark of Gideon" is submitted. TOS: "The Apple" is repeated.
- 15 July - Filming is completed on TOS: "Spock's Brain".
- 16 July - Filming begins on TOS: "Is There in Truth No Beauty?".
- 19 July - TOS: "Metamorphosis" is repeated.
- 23 July - Revised final draft script for TOS: "The Empath" is submitted.
- 24 July - Filming is completed on TOS: "Is There in Truth No Beauty?".
- 25 July - Filming begins on TOS: "The Empath".
- 26 July - Story outline for TOS: "Whom Gods Destroy" is submitted. TOS: "The Omega Glory" is repeated.
- 29 July - Noelle Hannibal is born.
- 30 July - Final draft script for TOS: "The Tholian Web" is submitted.
August
- 2 August - TOS: "Return to Tomorrow" is repeated. Filming is completed on TOS: "The Empath".
- 4 August - Daniel Dae Kim is born.
- 5 August - Filming begins on TOS: "The Tholian Web".
- 7 August - Final draft script for TOS: "For the World is Hollow and I Have Touched the Sky" is submitted, with a revision coming the next day.
- 8 August - Story outline for TOS: "That Which Survives" (titled "Survival") is submitted.
- 9 August - Eric Bana is born. First draft script for TOS: "Day of the Dove" is submitted with a revised final draft coming 19 August. TOS: "Assignment: Earth" is repeated.
- 12 August - Filming is completed on TOS: "The Tholian Web".
- 13 August - J.D. Walters is born. Filming begins on TOS: "For the World is Hollow and I Have Touched the Sky".
- 14 August - Story outline for TOS: "The Cloud Minders" (titled "Castles in the Air") is submitted.
- 16 August - TOS: "The Deadly Years" is repeated.
- 17 August - Andrew Koenig is born.
- 20 August - Filming is completed on TOS: "For the World is Hollow and I Have Touched the Sky".
- 22 August - Filming begins on TOS: "Day of the Dove".
- 23 August - TOS: "A Private Little War" is repeated.
- 27 August - Story outline for TOS: "The Way to Eden" is revised, with further revisions following on 5 September.
- 29 August - Filming is completed on TOS: "Day of the Dove".
- 30 August - TOS: "A Piece of the Action" is repeated.
September
- 5 September - First draft script for TOS: "Whom Gods Destroy" is submitted.
- 12 September - Story outline for TOS: "The Lights of Zetar" is submitted.
- 15 September - Susan Patterson is born.
- 16 September - Final draft script for TOS: "That Which Survives" is submitted.
- 20 September - TOS: "Spock's Brain" airs on NBC as the first episode of the third season.
- 23 September - Story outline for TOS: "All Our Yesterdays" (titled "A Handful of Dust") is submitted.
- 27 September - TOS: "The Enterprise Incident" airs.
- early to mid-September - TOS: "Plato's Stepchildren" is filmed.
- mid to late September - TOS: "Wink of an Eye" is filmed.
- late September - TOS: "That Which Survives" begins filming.
- The Making of Star Trek by Stephen E. Whitfield & Gene Roddenberry is published by Ballantine Books.
October
- 1 October - Jay Underwood is born.
- 2 October - Story outline for TOS: "Requiem for Methuselah" is submitted.
- 4 October - Jennifer Gatti is born. TOS: "The Paradise Syndrome" airs.
- 11 October - TOS: "And the Children Shall Lead" airs.
- 16 October - Todd Stashwick is born.
- 18 October - TOS: "Is There in Truth No Beauty?" airs.
- 23 October - Gary Erskine is born.
- 25 October - TOS: "Spectre of the Gun" airs.
- 26 October - Jeffrey Kalmus is born.
- 28 October - Final draft script for TOS: "The Lights of Zetar" is submitted.
- 31 October - Grant Woods dies.
- early October - Filming for TOS: "That Which Survives" is completed and TOS: "Let That Be Your Last Battlefield" is filmed.
- mid-October - TOS: "Whom Gods Destroy" is filmed.
- late October - TOS: "The Mark of Gideon" is filmed.
November
- 1 November - TOS: "Day of the Dove" airs.
- 4 November - Filming is completed on TOS: "The Mark of Gideon".
- 5 November- Filming begins on TOS: "The Lights of Zetar".
- 6 November - Vidal Peterson is born.
- 8 November - TOS: "For the World is Hollow and I Have Touched the Sky" airs.
- 12 November - Filming is completed on TOS: "The Lights of Zetar".
- 13 November - Filming begins on TOS: "The Cloud Minders".
- 15 November - TOS: "The Tholian Web" airs.
- 16 November - James Parks is born.
- 19 November - First draft script for TOS: "Requiem for Methuselah" is submitted.
- 20 November - Filming is completed on TOS: "The Cloud Minders".
- 21 November - Filming begins on TOS: "The Way to Eden".
- 22 November - TOS: "Plato's Stepchildren" airs.
- 29 November - TOS: "Wink of an Eye" airs. Filming is completed on TOS: "The Way to Eden".
December
- 1 December - First draft script for TOS: "Turnabout Intruder" is submitted with a final draft coming on 20 December, and revisions on 30 December.
- 2 December - Filming begins on TOS: "Requiem for Methuselah".
- 6 December - TOS: "The Empath" airs and final draft script for TOS: "The Savage Curtain" is submitted.
- 9 December - Filming is completed on TOS: "Requiem for Methuselah".
- 10 December - Marc D. Giller is born.
- 11 December - Filming begins on TOS: "The Savage Curtain".
- 12 December - Final draft script for TOS: "All Our Yesterdays" is submitted with revisions coming 17 December.
- 15 December - Garrett Wang is born.
- 16 December - Paul Scherrer is born.
- 19 December - Filming is completed on TOS: "The Savage Curtain".
- 20 December - TOS: "Elaan of Troyius" airs. Eva Loseth is born. Filming begins on TOS: "All Our Yesterdays".
- 22 December - Dina Meyer is born.
- 27 December - TOS: "The Enterprise Incident" is repeated.
- 30 December - Bryan Burk is born. Filming is completed on TOS: "All Our Yesterdays".
- 31 December - David A. McIntee is born. Filming begins on TOS: "Turnabout Intruder".
- Gold Key TOS comic #3: "Invasion of the City Builders" is published.
Unknown
- TOS: "The City on the Edge of Forever" wins the Hugo Award as "Best Dramatic Presentation" after TOS episodes sweep the nominations for the category.
- Gene Roddenberry wins a special Hugo Award for Star Trek.
- Benjamin Brown and Richard Isanove are born.
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