Canon events that were elaborated in the novels, comics and games

[Extrocomp]

This is a list of events that were briefly mentioned in episodes and movies, but were only shown or described in non-canon material.

Alternate Tasha Yar's failed escape from Romulan custody
mentioned in Redemption II
elaborated in Star Trek: Defiant Annual and Star Trek Online

Battle of Axanar
mentioned in Whom Gods Destroy
elaborated in The Four Years War, Star Trek The Original Series: Core Game Book and Garth of Izar

Battle of Betazed
mentioned in In the Pale Moonlight
elaborated in The Ceremony of Innocence is Drowned

Battle of Caleb IV
mentioned in Once More Unto the Breach
elaborated in Star Trek Online

Battle of Cheron
mentioned in The Defector
elaborated in Starfleet: Year One, To Brave the Storm and Federation: The First 150 Years

Battle of Donatu V
mentioned in The Trouble with Tribbles
elaborated in Killing Blow and Federation: The First 150 Years

Battle of Maxia
mentioned in The Battle
elaborated in The Buried Age

Battle of Procyon V
partially shown in Azati Prime
elaborated in Star Trek Online

Battle of Ricktor Prime
mentioned in Field of Fire
elaborated in Four Lights

Battle of Tong Vey
mentioned in Rules of Engagement
elaborated in Klingon Honor Guard

Battle of Vorkado
mentioned in Workforce, Part II
elaborated in To Brave the Storm

Betreka Nebula Incident
mentioned in The Way of the Warrior
elaborated in The Art of the Impossible

Captain Sulu agrees to sponsor Chakotay at Starfleet Academy
mentioned in Tattoo
elaborated in Pathways and Seduced

Chulak's defeat at Galorndon Core
mentioned in The Thaw
elaborated in To Brave the Storm and Star Trek Online

Dikironium cloud creature attack on USS Farragut and aftermath
mentioned in Obsession
elaborated in Debt of Honor and The Autobiography of James T. Kirk

Earth-Romulan War
mentioned in Balance of Terror
elaborated in Spaceflight Chronology, The Romulan War (FASA), The Romulan Way, Star Trek The Original Series: Core Game Book, Dead Man's Hand, Star Trek: Legacy, Kobayashi Maru, Beneath the Raptor's Wing, To Brave the Storm and Federation: The First 150 Years

EMH having a roommate named Mareeza and a son named Jason Tabreez
mentioned in Blink of an Eye
elaborated in I Have Broken the Prime Directive and Eighteen Minutes

Eugenics Wars
mentioned in Space Seed
elaborated in The Eugenics Wars: The Rise and Fall of Khan Noonien Singh: Volumes One and Two, Federation: The First 150 Years and Star Trek: Khan #1-2

Failed Romulan evacuation effort
mentioned in Remembrance
elaborated in The Last Best Hope

Five cadets get killed trying to perform the Kolvoord Starburst
mentioned in The First Duty
elaborated in The Autobiography of James T. Kirk

Gary Mitchell saving Kirk from a poison dart on Dimorus
mentioned in Where No Man Has Gone Before
elaborated in Star Trek #64: Gary, My Brother's Keeper: Enterprise, Captain's Peril, Strange New Worlds (photocomic), and The Autobiography of James T. Kirk

Gary Mitchell setting Kirk up with a blonde lab technician
mentioned in Where No Man Has Gone Before
elaborated in Star Trek Annual 1991

Kal Dano hiding the Tox Uthat on Risa
mentioned in Captain's Holiday
elaborated in Star Trek Online

Ketteract creating an Omega molecule
mentioned in The Omega Directive
elaborated in Section 31: Cloak and Star Trek: Legacy

Khan's wife getting killed by a Ceti eel
mentioned in Star Trek II: The Wrath Of Khan
elaborated in To Reign in Hell: The Exile of Khan Noonien Singh and Khan: Ruling in Hell #3

Kirk's first visit to Neural
mentioned in A Private Little War
elaborated in The Autobiography of James T. Kirk

Kirk's Kobayashi Maru Test (Prime Universe)
mentioned in Star Trek II: The Wrath Of Khan
elaborated in The Kobayashi Maru, Star Trek #73: Star-Crossed and A Test of Character

Kirk saving the Baezians from extinction
mentioned in Q2
elaborated in The Captain's Oath

Kirk saving the Chenari from extinction
mentioned in Q2
elaborated in The Captain's Oath

Kirk saving the Pelosians from extinction
mentioned in Q2
elaborated in Forgotten History

Mallory's father helps Kirk get into Starfleet Academy
mentioned in The Apple
elaborated in Academy: Collision Course and The Autobiography of James T. Kirk

McCoy performing a C-section on a pregnant Gorn
mentioned in Star Trek Into Darkness
elaborated in Star Trek 2013 video game

McCoy's first visit to Capella IV
mentioned in Friday's Child
elaborated in My Brother's Keeper: Constitution, Seasons of Light and Darkness and The Captain's Oath

Mudd Incident
mentioned in Star Trek Into Darkness
elaborated in Countdown to Darkness #2-4

Tarsus IV Massacre and aftermath
mentioned in The Conscience of the King
elaborated in A Flag Full of Stars, Avenger, Though Hell Should Bar the Way, Academy: Collision Course, The Autobiography of James T. Kirk and Drastic Measures

Tasha Yar going through a Carnelian minefield to rescue colonists
mentioned in Legacy
elaborated in The Buried Age and Star Trek: Defiant Annual

Tomed Incident
mentioned in The Neutral Zone
elaborated in Serpents Among the Ruins

Vulcanian Expedition
mentioned in Court Martial
elaborated in Strangers From the Sky and The Captain's Oath


The following incidents have not yet been elaborated.


Battle of Klach D'Kel Brakt
mentioned in Blood Oath

Kirk using the Cochrane deceleration maneuver to defeat a Romulan ship near Tau Ceti
mentioned in Whom Gods Destroy

Kor's attack on Romulus
mentioned in The Sword of Kahless

Picard risking his life to help the Wogneer creatures
mentioned in Allegiance

Silver Blood Voyager's encounter with the Kmada
mentioned in Course: Oblivion

Silver Blood Voyager's encounter with the N'Kree
mentioned in Course: Oblivion

USS Enterprise visit to Cygnet XIV
mentioned in Tomorrow is Yesterday

USS Enterprise-D mission to Cor Caroli V
mentioned in Allegiance

 

[Christopher]

Kirk saving the Baezians from extinction
mentioned in Q2

I referenced this in The Captain's Oath. "I’m aware that the entire Baezian civilization would be extinct now if you hadn’t stayed behind to defuse that doomsday weapon."

USS Enterprise visit to Cygnet XIV
mentioned in Tomorrow is Yesterday

I alluded to this in Living Memory, but didn't elaborate beyond what the episode established.

 

[Extrocomp]

Thanks. I wasn't aware you covered the Baezian incident as well.

 

[Christopher]

Thanks. I wasn't aware you covered the Baezian incident as well.

Well, I'd hardly say "covered," since that one sentence is all I wrote about it. More like "touched on."

 

[Tosk]

Battle of Betazed
mentioned in In the Pale Moonlight
elaborated in The Ceremony of Innocence is Drowned

And also in a novel titled, "The Battle of Betazed". Funnily enough.

 

[evilchumlee]

Star Trek Online does a remarkably good job of elaborating on things, often times bringing merging two different elements to work together.

The Tox Uthat gets alot more backstory and development, including how it got on Risa in the first place.

8472 gets more to do, although alot of it has been removed from the game.

The Hobus supernova has alot of elaboration.

 

[Extrocomp]

I thought The Battle of Betazed was about the campaign to liberate Betazed from the Dominion, not the actual Battle of Betazed which was when the Dominion took the planet.

 

[Extrocomp]

The Tox Uthat gets alot more backstory and development, including how it got on Risa in the first place.

Just added this one. The Romulan supernova is something that was physically shown in the movie, so it doesn't qualify for the list.

 

[Tosk]

I thought The Battle of Betazed was about the campaign to liberate Betazed from the Dominion, not the actual Battle of Betazed which was when the Dominion took the planet.

I never actually read it, so I willingly accept the egg currently on my face.

Edit: Yeah, apparently set four months after the invasion.

 

[Christopher]

The Hobus supernova has alot of elaboration.

Except "Hobus" was never canonical, just a coinage of the Countdown comic that was disproven when Picard established it was Romulus's own sun that went supernova (somehow).

 

[JonnyQuest037]

Five cadets get killed trying to perform the Kolvoord Starburst
mentioned in The First Duty

This was also elaborated on in The Autobiography of James T. Kirk.

 

[Extrocomp]

This was also elaborated on in The Autobiography of James T. Kirk.

Just added, thanks.

 

[JonnyQuest037]

McCoy's first visit to Capella IV
mentioned in Friday's Child
elaborated in Seasons of Light and Darkness

We see the tail end of McCoy's assignment on Capella IV in Michael Jan Friedman's My Brother's Keeper Book Three: Enterprise.

 

[Extrocomp]

According to Google Books the only mention of Capella IV in the novel is McCoy saying "I just finished a tour of duty on Capella IV. It wasn't exactly what I'd call satisfying." Not really an elaboration. Google Books search results are not 100% reliable, so is there something else that I missed?

 

[Christopher]

I referenced McCoy's stint on Capella IV in The Captain's Oath, IIRC.

 

[Extrocomp]

I referenced McCoy's stint on Capella IV in The Captain's Oath, IIRC.

I looked it up. It doesn't have any information that wasn't revealed in the episode.

 

[Christopher]

I looked it up. It doesn't have any information that wasn't revealed in the episode.

I did try to provide some wider context, explaining when it happened (the year before McCoy came aboard the Enterprise) and what McCoy was doing on a planet like Capella IV.

McCoy had spent the past year on assignment to Starfleet Medical, providing care and health education to preindustrial civilizations that were already aware of alien life—usually because they had been contacted before the Prime Directive was established, or by some other civilization that had no Prime Directive. That put them in a gray area where noninterference was concerned, and the heads of the program at Starfleet Medical had convinced Command that offering them humanitarian aid and health assistance was not only a moral duty, but a pragmatic choice to avoid earning the resentment of cultures who knew of the Federation’s advancement and would wonder why it did nothing to help their people. After all, many of those species had been contacted first by the Klingons or other hostiles, powers that might wish to take advantage of any bad blood that might develop between them and the Federation. So it was strategically as well as ethically appropriate to stay in those societies’ good graces.

Not that any of that mattered to Leonard McCoy, of course. All he cared about was the good of his patients. “It’s been very rewarding work. We’re helping a lot of people out here.” McCoy fidgeted. “Still . . . it can be frustrating dealing with the local attitudes sometimes. My last stint was on Capella IV—a fine people in their way, proud and honorable, but incredibly stubborn when it came to accepting even the most basic medical care. We spent months butting heads with them, helping where we could, until we finally decided it was a lost cause and just left.”

And a bit more information later in the book:

Kirk had tried to convince him to stay, but McCoy had believed it was important to aid civilizations that lacked modern medicine, and that staying in touch with more traditional, hands-on medical techniques could be of great benefit to modern doctors.

 

[Extrocomp]

Okay, I'll add it to the list.

 

[AresB]

The ill-fated Romulan evacuation operation before the supernova explosion: ST Picard: the Last Best Hope.

 

[Enterprise1701]

Speak of the devil, and he shall appear! This week's Star Trek: Defiant annual issue from IDW Publishing visually depicted Natasha Yar

Spoiler

(the prime timeline incarnation) saving colonists from Carnelians (which Sela witnesses courtesy of a stolen chrono-deflector from Korath), as mentioned by Jean-Luc Picard in TNG 4.06 "Legacy".

Here are pages 21 to 23 showing the Carnelians themselves.