Watching the Clock Annotations p. 2

This document explains the continuity references, allusions, in-jokes, and scientific concepts contained in Star Trek: Department of Temporal Investigations: Watching the Clock (WTC).   I assume that the reader is familiar with the basic characters and background of the Trek universe.  Readers seeking further information on references to past Trek episodes or movies are advised to consult the Memory Alpha Star Trek wiki.  Information about Star Trek novels can be found at the Memory Beta wiki.

Be aware that this document contains spoilers for the whole of WTC and for numerous episodes, films, and novels from all Trek series, particularly the Destiny crossover trilogy by David Mack.  I would strongly recommend not reading it until one has completed the novel, since many of the notes contain spoilers for things not revealed until later scenes or chapters.

Episode and short-story titles are in quotes, while film and book titles are italicized.

Abbreviations:

ENT — Enterprise	TOS — The Original Series	TAS — The Animated Series
TNG — Next Generation	DS9 — Deep Space Nine	VGR — Voyager
TTN — Titan	SCE — Starfleet Corps of Engineers
DES — Star Trek: Destiny	AOTF — Articles of the Federation
AOY — All Our Yesterdays: The Time Travel Sourcebook

 

Chapter Annotations (Ch. IX – Epilogue)

To Annotations p. 1

Pg.
Chapter IX
195	Date: October 19, 2381.
	Pyrellia is identified in the Star Charts foldout map 3 as Psi(5) Aurigae, the same star which is identified with Kreetassa on the NX-01 map on p. 60.  In this case, rather than reconciling them as the same star, I decided to disregard the book’s placement of Pyrellia, instead going with Hy 207,  a K7 star 8.7 ly from 39 Tauri and 52 ly from Earth.  The habitable zone around a star this dim would be about a tenth of an AU, giving a year approximately three standard weeks long. At that close range, it’s inevitable that the planet would be tidally locked, with one face perpetually sunlit.  It used to be believed that such a world would be almost completely uninhabitable except in a very narrow strip along the terminator (see TOS: Twilight’s End by Jerry Oltion and TNG: Section 31: Rogue by Andy Mangels and Michael A. Martin), but research such as that of M. J. Heath et al, “Habitability of Planets Around Red Dwarf Stars” (1999), has shown that atmospheric and hydrospheric circulation of heat would widen the habitable zone substantially.
198	As far as Google can tell, “retroassassination” is my own original coinage.  It means “assassination of someone in the past through time travel.”  I can’t believe nobody’s come up with the term before, but other writers are invited to make use of this, my contribution to the vocabulary of science fiction.  Just remember, you heard it here first.
199	Actually the tank top undergarment in the Starfleet uniform of this era is more of a bluish-grey, the same for all departments.  I erroneously assumed it was department color.  However, perhaps there are variants available.
200	Quantum dating was established in ENT as a form of “absolute” dating, giving you the date of origin of an object even if it was in the future.  This is complete nonsense, since dating techniques can only tell you how old the object is.  But I felt obligated to try to justify it.  My explanation is still pretty much nonsense, but at least it’s rooted in real quantum concepts like wavefunction interference.
201	The “strikingly similar” incidents being referred to are ENT: “E²” and DS9: “Children of Time.”
202	Date: Oct. 21, 2381.
	The “few common enemies” Revad is referring to are the Dominion, Shinzon, and the Borg.
204	The clash over the time pod was in ENT: “Future Tense.”  While no calendar date was cited in that episode, it was midway between an episode dated Sept. 18 (“The Catwalk”) and one dated Jan. 10 (“Horizon”), so a mid-November date was reasonable.
	The details of how the Federation inspired the Typhon Pact’s creation are explained in A Singular Destiny.
207	The Piacenzian age was roughly 3.6 to 2.6 million years ago.
212	Date: Oct. 22, 2381.
Chapter X
218	The Discordian calendar is real, though somewhat self-parodic.  It’s also called the Erisian calendar, hence its use in this chapter; I called it Discordian instead to avoid confusion with the Risian calendar in Ch. VII, and to clarify that it wasn’t actually the calendar of the dwarf planet Eris (in which case it would have to be the Eridian calendar).  This is the only chapter where I include non-Gregorian names for days of the week, an exception I made because the Discordian weekday names are too silly not to include.Date: Sept. 14, 2368.
219	Louise Cara Raymond, her husband Thomas, and their children Mary and Darrell were mentioned in TNG: “The Neutral Zone” as Clare’s surviving descendants.  Bisabuela is Spanish for “great-grandmother.”
220	Vasily Hunyadi is a eugenics superman established in The Eugenics Wars: The Rise and Fall of Khan Noonien Singh by Greg Cox.
	While American observers tended to believe the Tiananmen Square student protests were “pro-democracy” rallies, the original protestors were actually speaking out against corruption within the party and in favor of price controls on consumer goods and increased funds for higher education, as well as the easing of restrictions on the press.  It was more about making the system work better, in the egalitarian way it was theoretically supposed to, than about replacing it with a Western-style democracy. (Some pro-democracy protestors joined in later and got the bulk of the Western media attention, but they weren’t the driving force.)  It was also an act of mourning for Hu Yaobang, the reformer and “patron saint” of China’s liberal intelligentsia, who had just died, two years after being forced to resign and sent into disgrace by government hardliners.  Anger at Hu’s mistreatment fired calls for his rehabilitation as well as the other desired reforms, and the situation became an escalating clash between reformists and hardliners.
	I grew up watching news reports portraying the Shah of Iran as a staunch US ally who’d been forced into exile by a fanatical religious uprising; I imagine that Clare, who would’ve been born nine years before me, would probably have seen him the same way.  In fact, it was Shah Mohammed Reza Pahlavi’s brutal, selfish, exploitative treatment of his people that helped drive a populist uprising to overthrow his tyrannical regime.  The only reasons the US treated him as an ally were because of his staunch anti-communism and his commitment to Western-style modernization. Unfortunately, the 1980 hostage crisis, perpetrated by a radical group within the revolutionary movement, polarized the situation and forced more moderate revolutionary factions to accept hardline views or face marginalization.  See my history paper on the subject.
221	Roladan Wild Draw was mentioned in DS9: “Emissary.”  California lowball is a variety of draw poker.
222	The Bozeman‘s rescue occurred at the end of TNG: “Cause and Effect.”
	Date: Sept. 17, 2368.
223	Berlinghoff Rasmussen is from TNG: “A Matter of Time.”  He also features in Indistinguishable from Magic.
	TNG: “Firstborn” established that the future Alexander obtained a time machine from a man in the Cambra system.  This was at roughly the same time as the future portions of VGR: “Endgame,” in which Korath appeared and had possession of a time machine.  It seems likely that the man in the Cambra system was Korath, since how many Klingons with time machines can there be?
	The First Federation are from TOS: “The Corbomite Maneuver.”
224	The Bozeman crew here is based on the extras who appeared behind Captain Bateson in the closing shots of “Cause and Effect.”  Parvana Whitcomb is the lieutenant standing on Bateson’s flank, and is named in part for the Whitcomb character in Poul Anderson’s first Time Patrol story.  Commander Sulu turning down the Bozeman first officer post on short notice is from the TOS novel The Captain’s Daughter by Peter David, and helps explain why a mere lieutenant is serving as the exec.
	The Norkan massacre, or Norkan Campaign, depending on which side you were on, was a Romulan offensive commanded by Admiral Jarok an unspecified time before TNG: “The Defector.”
226	Claudia Alisov is the crewwoman in engineering gold at a starboad aft console on the Bozeman bridge.  Her first name is a nod to actress Claudia Wells from Back to the Future (who was much hotter than her replacement Elizabeth Shue in the later movies).  “Alisov” is more roundabout; it’s from Alisoff, the alleged last name of “Miss Kitka” (Catwoman) in the 1966 Batman feature film, who was played by Lee Meriwether, who played Ann McGregor in The Time Tunnel.  I could’ve just called her Claudia McGregor, but I wanted more non-Anglo-Saxon character names.
	Lloyd Boen is the blurry guy over Bateson’s shoulder.  You can’t see it in that particular screencap, but he seems to have a goatee.  He’s named for Christopher Lloyd of Back to the Future and Earl Boen of the Terminator films.
226-8	Note: George Faunt begins his DTI training six days after Dulmur quits.  I don’t know if there’s a correlation there.
228	Date: November 25, 2368.
229	As you can perhaps guess, this scene was written during my own father’s time in hospice care.
230	I needed to explain why the Bozeman crew not only failed to extricate themselves from the loop, but didn’t even seem aware of it, despite living through far more iterations than the Enterprise crew.
	I considered trying to postulate the shape of science fiction television if there had been no Star Trek (which of course there would not have been within the ST universe).  Would there ever have been a Star Wars without ST setting the stage?  Would SF ever have become a major pop-culture genre at all?  I considered going the easier route and postulating an ST pastiche to fill its niche in genre history.  (Galaxy Quest wouldn’t have worked since it was supposedly made in the ’80s, but I was tempted to throw in a nod to Astro Quest from the CSI episode “A Space Oddity.”)  I decided it would be too great a digression here, so I tried to leave it implicit and limit it to the near term.  I’m hinting that perhaps The Invaders (from 1967) was more prominent as a result of ST’s absence.  Lee Majors, of course, was the star of The Six Million Dollar Man in the ’70s.  While many genre shows would likely not have been made without ST’s influence, the bionic shows were based on a novel and were more along the lines of spy or superhero shows.
232	“The Cryonic Woman” is a callback to the Lee Majors reference above (a play on the spinoff The Bionic Woman, of course), but it’s also the name of a Futurama episode.
234	Date: January 3, 2369.
235	Telek R’Mor is from VGR: “Eye of the Needle,” though Lucsly doesn’t know that yet.  The fate of the Voyager crew’s messages left in Telek’s care was never revealed.
	The Devidian incident is TNG: “Time’s Arrow.”  Guinan using her knowledge of the future to nudge Picard toward the captaincy is from The Buried Age.
236	The newspaper seen in “Time’s Arrow,” announcing the event at which Guinan and Mark Twain were speaking in San Francisco, was dated August 11, 1893.  According to Twain’s published correspondence, however, at that time he was leading a vagabond existence in Europe as he revised The Tragedy of Pudd’nhead Wilson.  After leaving New York on May 13, 1893, he and his family reached Florence two weeks later, then relocated to Munich in late June.  A letter of July 8 (misdated as ’92) says “We have been stopping in Munich for awhile, but we shall make a break for some country resort in a few days now.”  Given that he was evidently broke at the time, the resort may have been greatly exaggerated (sorry).  He may have headed to Switzerland, for on July 30, he wrote, “By and by I shall take up the Rhone open-boat voyage again, but not now–we are going to be moving around too much. … We leave here in about ten days, but the doctors have changed our plans again. I think we shall be in Bohemia or thereabouts till near the end of September, then go to Paris and take a rest.”  (Bohemia was in the Austro-Hungarian Empire at the time, and is now part of the Czech Republic.)  If the ten-day figure is correct, his departure for Bohemia would’ve come on August 9, just days before the episode.  But Twain changed his plans and sailed for America on August 29 (days after the end of “Time’s Arrow”), arriving in New York where he took up residence (his family remained in Europe).  His financial problems were eased when he met millionaire/emancipationist Henry Huttleston Rogers.For what it’s worth, from the time he left Munich in early July to his return to New York in mid-September, Twain’s letters are decidedly lacking in specifics about his whereabouts.  So it is conceivable that he could’ve actually returned to the US early enough to be in San Francisco in mid-August, and the talk in the letters about his constant wandering during this period is a cover by later redactors to justify the lack of solid evidence of Twain’s presence in Europe at the time.  This is serendipitous, since I didn’t track down those specific letters until late in the proofreading process.
239	Eris is the trans-Neptunian object whose discovery led to the creation of the “dwarf planet” category, once it was determined that it was bigger than (or roughly equal in size to) Pluto.
242	There’s no particular significance to 2291 as the date the Vault was founded.  I just figured it would be a while after the DTI was established, but not too long after.
244	a large, blue boxlike artifact: Nahh, it couldn’t be.
	The three security guards are named for Billy Zane, J.J. Cohen, and Casey Siemazsko, who played Biff’s sidekicks in the first two Back to the Future films.
245	an ornate ancient time carriage… large disk at its rear: Nahh, it couldn’t be.
246	The use of a Class-8 probe as a high-warp transport was established in TNG: “The Emissary.”
Chapter XI
252	Date: December 4, 2381.
	The Chateau Thelian was established as the presidential residence in AOTF, as were President Bacco, presidential security agent Wexler, and the other administration figures and offices referenced herein.  The Pandrilite guard is a new character.  Pandrilites were created by novelist Michael Jan Friedman.
253	The Pike City Pioneers were established in DS9: “Family Business.”  AOTF established them as Bacco’s favorite team.  There’s no significance to the number 14, aside from it being the number worn by Pete Rose, the only Cincinnati Red whose number I remembered.  (I haven’t been a baseball fan since I was very young.)
254	The term ‘fresher (short for “refresher”) is a common science-fictional euphemism for “bathroom” dating back to the work of Robert A. Heinlein in the 1940s.  Its use in Star Trek dates at least as far back as Diane Duane’s My Enemy, My Ally in 1984.
256	When I introduce new species in my Trek fiction, when feasible I like to use established, unnamed aliens seen onscreen.  The species I’ve chosen for the Shirna is one that was seen frequently in the background on DS9.
258	VGR: “Relativity” established the TIC practice of “reintegrating” temporal copies; I realized that I could identify this with the “beam a person into himself” trick employed in TOS: “Tomorrow is Yesterday,” and use the opportunity to offer an explanation for how and why that worked.
261	The first encounter with Braxton was in VGR: “Future’s End.”
268	NX-01’s rescue of the Klingon ship was in ENT: “Sleeping Dogs.”  The P’Jem monastery was visited in “The Andorian Incident.”  And of course, the Tandaran internment camp was in “Detained.”
269	“Future Guy” is the nickname for the unidentified Cabal sponsor who was identified in scripts as “Humanoid Figure.”  It started out as a fan nickname but was eventually elevated to quasi-official status.
Chapter XII
273	Date: December 5, 2381.  See Alien Calendar Notes for Cardassian calendar info.
	The first blank is “Christopher,” as in Shaun Geoffrey Christopher, established in TOS: “Tomorrow is Yesterday.”  Hey, how could Dina be expected to remember a silly name like that?
	The amphibian Carreon species is from Enterprise Logs: “Just Another Little Training Cruise” by A. C. Crispin.  The humanoid Carreon are from TNG: Gateways: Doors into Chaos by Robert Greenberger and also appear in AOTF.
274	“Man on the beam” is a punny crossword clue for the inventor of the transporter, Emory Erickson (from ENT: “Daedalus”).
	Acamarians are from TNG: “The Vengeance Factor.”  Betelgeusians are a background species from ST:TMP which I developed in Ex Machina and Orion’s Hounds.
275	Adrienne Markham is named for Adrienne Hill, who played Katarina, the first Doctor Who companion to die, and for Greg Markham from Timescape by Gregory Benford.  Metta Tharys is implicitly a Bajoran name.
277	“…step on a butterfly”: An allusion to the famous Ray Bradbury story “A Sound of Thunder,” and its premise that the tiniest change in the past, like stepping on a butterfly, can unpredictably alter history.  This is often mistakenly assumed to be the origin of the term “butterfly effect,” but that’s actually a metaphor from chaos theory, referring to the idea that the flap of a butterfly’s wings on one side of the world can potentially trigger a hurricane on the other.  The ideas are highly similar, but the chaos-theory term predates “A Sound of Thunder” and there’s no evidence that Bradbury was referring to it in his story.  A butterfly is simply a common symbol for something small and fleeting.
	HIch is the Klingon word for “gun.”
	Date: Dec. 23, 2381.
	Nivoch is a planet mentioned in VGR: “Prime Factors,” implicitly one near Bajoran or Cardassian territory.  Norym District is an inversion of my father’s name, Myron.
278	Chandir is the name I gave to the “Tailheads,” a commonly appearing DS9/TNG background species, in TTN: Over a Torrent Sea.
	The Hugora Nebula was established in TNG: “Preemptive Strike.”
279	The civilian coup is from DS9: “The Way of the Warrior.”
280	“Those damn androids” is a nod to Gene Roddenberry’s 1973 pilot The Questor Tapes.  The android Questor’s mission was very much like that of Gary Seven in “Assignment: Earth,” to shepherd humanity through its turbulent maturation.  TOS: Assignment: Eternity by Greg Cox implied that Gary Seven had played a role in events leading up to Questor’s construction, and TNG: Immortal Coil by Jeffrey Lang depicted an android-maker using the pseudonym Emil Vaslovik, the name of Questor’s creator (and predecessor).  These can be taken as hints that Questor existed in the Trek universe.  Of course, since Questor was produced and owned by a different studio than ST, ambiguous hints are the most we can get away with.
	I neglected to mention in the Acknowledgments that the ST version of the Roswell incident comes from DS9: “Little Green Men” and was followed up on in The Eugenics Wars.
282	Cyral’s reminiscences contain multiple homages and allusions.  The crystal spires are a reference to an Aegis installation depicted in DC Comics’ “The Peacekeeper” storyline (which established the name “Aegis” and their role in temporal defense).  The silver trees and orange sky are from descriptions of Gallifrey, home of the Time Lords in Doctor Who.  The vast beings with great eyes are a nod to the depiction of Gary Seven’s employers in issue 4 of IDW Comics’ Assignment: Earth miniseries by John Byrne (though those stories are inconsistent with the novel continuity).
284	Date: January 17, 2382.
	Ealing is the locale of the Doctor Who spinoff The Sarah Jane Adventures.  I like to think that Garcia lives on Bannerman Road.
	creatively baring large portions of her skin in a way that was fashionable in her home time but somewhat daring in the current, postwar era: Garcia’s “home time” encompasses TNG’s first season, in which the costume designs were by William Ware Theiss (of TOS), who was known for his creatively revealing costumes.  Subsequent costume designs seen in modern Trek were more conservative.
287	The Regnancy of the Carnelian Throne was introduced in TNG: The Buried Age as a large but very distant power.  As with the Axis of Time, I was unaware when I coined the term that there was a pre-existing fantasy novel called The Carnelian Throne by Janet Morris (I was quite surprised when I recently came upon it in a used-book store).  My apologies to John Birmingham and Janet Morris for the inadvertent duplication of their titles.  Not much new under the sun, is there?  Well, at least “retroassassination” is all mine…
Chapter XIII
292	Date: July 27, 2372.  See Alien Calendar Notes for Deltan calendar info.
	The name Yongam is derived from yoni and lingam, the Sanskrit terms for the female and male genitalia as spiritual symbols of life.
293-4	This description of first contact with the Deltans is based on events described in ENT: “Bound.”  While the episode did not establish the Horizon‘s encounter with the Deltans as the first contact, I found it convenient and reasonably plausible to assume it was.
295	I chose Delta’s primary star in a way that underlines how obsessive-compulsive I can be, or maybe just how much I enjoy problem-solving.  Star Trek Star Charts did not identify Delta with any specific real star, so I used the Celestia simulator, adjusting my vantage point until I was looking straight “down” on the galactic plane and could see the major stars in the same orientation they had on the STSC maps.  I then marked several stars that corresponded as closely as possible to Delta’s position on the STSC maps, and picked the one which was the most plausible candidate for a habitable world.  V2292 Ophiuchi, aka Hip 82588, is a main-sequence G8 star 55 light-years from Earth, unlike the STSC Delta, which is color-keyed as an F star.  Note that V2292 Oph is believed to be only 300 million years old, too young to have naturally evolved life; however, given the implication earlier that Deltans are descended from Sargonian/Arretian colonists, this is not a problem.
297	Previous texts depicting the (humanoid) Carreon offered no description beyond references to hirsuteness and red gloves.  Building on this, I tried to make them physical opposites of the Deltans as much as possible.
298-9	Faunt is reflecting on the events of DS9: “Visionary.”  The subspace-link principle is probably the same one depicted in DS9: “The Visitor,” though it’s unclear whether anyone in the Prime timeline is aware of that episode’s events.
303	Ranjea preferentially goes by his second name, Riroa by her first.  I decided not to establish a uniform usage, since it’s an entire planet and there are no doubt diverse naming traditions.  Also, Deltans are a permissive culture, so it may be left to individual preference.
308	Date: July 29, 2372.
311	Joaquin Perez is the same Perez who was seen in Ilia’s quarters in ST:TMP; his first name comes from Ex Machina.  I’m assuming he transferred to the Bozeman sometime before it was trapped in time.
312	The Na’kuhl are from ENT: “Storm Front,” though they were never named onscreen (the name is from the script).
Chapter XIV
316	Date: June 20, 2373.  Shortly after DS9: “Trials and Tribble-ations.”
	Sadvis is the Persian name for Aldebaran.  As with Ch. II, I picked the calendar first and then chose cultural references to justify it.
	The Akorem Laan incident was DS9: “Accession.”
317	It’s entirely coincidental that Vard, whom I pictured in my mind as being “played” by John Noble, has an alternate-universe counterpart like Noble’s character (and most of the other characters) on Fringe.  I’d had the idea for a dimension-jumping technology independently of Vard, and this was where I decided to work it in.  I used Vard because it meshed with Dulmur’s statement back in Ch. VI about meeting Vard eight years earlier.
318	Worf’s experience described here is from TNG: “Parallels.”
319	The incursions on DS9 are the Mirror-Universe episodes “Through the Looking Glass” and “Shattered Mirror.”  Neither episode had a stardate established.  Kirk’s crossover, naturally, is TOS: “Mirror, Mirror.”
	For the Weinberg-Polchinski entanglement, see the John Cramer article in Science Links on page 1.
323	The alternate Tandaran ship’s chroniton torpedoes work on the same principle as the Krenim torpedoes from VGR: “Before and After” and “Year of Hell.”
323-4	Assistant Director Hamidi is Iranian, and the starship Cyrus is named for a Persian ruler.  Presumably Aldebaran has a large Iranian population.
324	Date: I went with October 7, 2373.  This is supposed to be three days after the Enterprise returns from the past at the end of First Contact.
326	In Section 31: Rogue, when Picard is reflecting on his recent debriefing by the DTI agents, Dulmur is described as Lucsly’s senior partner, rather than the junior partner he’s portrayed as in most of this book.  I reconciled this by establishing that Dulmur had effectively accepted a promotion at this point, making him superior in rank to Lucsly and “senior” in that sense.  Of course, it didn’t last.
327	Counter Strike is established in IDW’s Assignment: Earth #4.
Chapter XV
330	Date: Jan. 23, 2382.  See Alien Calendar Notes for Klingon calendar discussion.
	The nations listed here were those mentioned in Bacco’s press conference at the end of A Singular Destiny by Keith R. A. DeCandido as nations that had been invited to a summit to explore an expansion of the Khitomer Accords.  That process has not gained any ground by this point, eight months later, but a reference later in the book suggests that it does bear fruit at some point in the future.
331	The Imperial Romulan State (a breakaway portion of the Romulan Star Empire, founded and ruled by Donatra from Nemesis) was established in AotF and dissolved in Typhon Pact: Rough Beasts of Empire by David R. George III.  All in all, it lasted about one year.  I was unaware of the dissolution in RBoE when writing WTC, so I had to do a quick fix in revisions to turn Ronarek into a former Imperial Romulan national.  RBoE showed that most Romulans wanted the halves of their empire to be reunited, but (spoiler alert) Ronarek’s defection makes sense in light of his agenda to be present at Vard’s conference.
	Lant and the time transporter are from SCE: “Buying Time.”
332	Doctor T’Pan is from TNG: “Suspicions.”
	Has T’Pan invented Red Matter, the McGuffin from the 2009 ST film?  Mmmm, could be… unless something comes along to say otherwise.
336	Daniels’ claim about schoolchildren is from ENT: “Shockwave, Part 2.”  His claim about the Sponsor being unable to travel through time is from “Cold Front.”  Two centuries earlier would be the 26th century, origin of the time-travelling historian whose pod was stolen by Berlinghoff Rasmussen in TNG: “A Matter of Time.”
337	“Early Warp Age” means the series present.  “Anthropocene” is the name for a proposed new geological epoch, reflecting the profound changes human civilization has made to the environment.  Its starting point is either the dawn of agriculture or the Industrial Revolution, depending on whom you ask.
342	Date: February 1, 2382.
343	The Tesnians were a species encountered near a field of microsingularities in ENT: “Shuttlepod One.”
348	T’Viss’s interference-pattern theory strongly resembles the effects of Anorrax’s temporal weapon in VGR: “Year of Hell”: the effectively retroactive erasure of a thing from history without actually travelling back in time.  This is my attempt at offering an explanation for the operation of that weapon, but I can only do so indirectly, since even the DTI isn’t aware of the events of the YoH timeline.
Chapter XVI
352	Date: January 18, 2378.  For more on the Martian Darian calendar, see http://pweb.jps.net/~tgangale//mars/converter/calendar_clock.htm.  Note that this is not the same Martian calendar used in ENT: The Romulan War: Beneath the Raptor’s Wing. I was unable to find adequate references for that system.
	I assume that Lucsly & Dulmur’s briefing of Janeway took place between the first and second scenes in Ch. 3 of VGR: Homecoming by Christie Golden, during Voyager‘s slow return to Earth as depicted therein.  However, it could be interpreted to come at any point shortly after VGR: “Endgame.”
353	The Traveler incident is “Gods, Fate, and Fractals.”  Gaia is from DS9: “Children of Time.”  The Red Orbs of Jalbador are from the DS9: Millennium trilogy by Judith & Garfield Reeves-Stevens.  Kira’s use of the Orb of Time is from DS9: “Wrongs Darker than Death or Night.”
354-6	The quantum singularity is from VGR: “Parallax.”  The Kes incident is from “Fury.”  The holoemitter was obtained in “Future’s End.”  The biotemporal chamber is from “Before and After.”  The Krenim encounter described occurs in the final scene of “Year of Hell.”  The slipstream incident is from “Timeless.”
357	Date: Jan. 19, 2378.
	AD Kreinns is from “Gods, Fate, and Fractals.”  His species and first name were not specified there.
358	A time portal was discovered on Golana in DS9: “Time’s Orphan.”  Presumably the DTI discovered several more.
359	Simperia is a planet in Cardassian space from DS9: “The Dogs of War.”  A civet is a somewhat catlike animal.
362	Date: Feb. 2, 2378.
	Robinson Township is named for Kim Stanley Robinson, author of the Mars Trilogy, the definitive epic of Martian colonization and terraforming.
363	Draylaxians were implied in ENT: “Broken Bow” to have three breasts.  Dulmur’s encounter is intentionally reminiscent of a similar scene from a Martian bar in Total Recall.
364	The words Lucsly is trying to say are “corrupted” and “twisted,” in case it’s not clear.
	Spock saving himself as a child is from TAS: “Yesteryear.”
Chapter XVII
368	Date: Feb. 1, 2382, continuing the final scene from Ch. XV.  See Alien Calendar Notes for Romulan calendar info.
	“In virtually every known branch of the future where the Borg threat isn’t ended in this century, they become too big to defeat”: Does this include the Star Trek: Online continuity in which the Borg are still present in 2409?  I have no opinion on that.  I consider ST:O to be an alternate fictional offshoot of the ST franchise, rather than an alternate timeline within the conjectural multiverse depicted by the novel continuity.  Your mileage may vary.  (For what it’s worth, she only says “virtually every known branch,” which does leave some wiggle room.)
376	Date: Feb. 16, 2382.
	If the DTI is so concerned for the safety of these temporal researchers, how did three of them manage to give their DTI watchdog the slip?  Maybe there’s a reason why T’Lem lost out to Shelan in the original history.  Also, the Department was so preoccupied with the Shelan situation that maybe they let their guard down.  The real explanation, though, is that I was unable to think of a better setup for the climax.
377	Kantare is the homeworld of the refugees from ENT: “Oasis,” the episode immediately before “Detained.”  Thus, it stands to reason that it’s near Tandar Prime.
378	The upheaval in Ferengi civilization has not been previously established, but could explain why they seemed to disappear from the galactic stage between ENT: “Acquisition” and TNG.
380	“The guy” Dulmur is referring to is Daisen Hamor from Ch. II.  I didn’t intentionally set up the holographic camouflage idea to be paid off here; it was serendipitous.
	At this point, Dulmur is 53 years, 202 days old.  That makes Dina Elfiki’s age 29 years, 5 months if Lucsly is referring to her biological age, and about 29 years, 1 month if he’s referring to her chronological age.  (Somehow I never pinned down the exact date of her arrival in the past, although it must be before October 15 to qualify as “early October.”)
381	Lidar is essentially the laser version of radar.
	Ensign Preston is a nod to Bill S. Preston from the Bill and Ted movies.  I wanted to insert something about going back in time after the fact to set something up and refer to it as “the Preston-Logan maneuver,” but there was no opportunity to do so without spoiling a tense moment.
383	Date: Feb. 17, 2382.
384	“Metta” is named in honor of Elfiki’s lost colleague Metta Tharys, but since she’s a Bolian, she presumably doesn’t use the full, distinctly Bajoran name.
386-7	In both Tandaran appearances, “Detained” and “Two Days and Two Nights,” the Tandaran characters spoke to Archer about the Temporal Cold War.  I had to rationalize this away to justify my premise.
387	The temporal agent who guided the Tandarans may have been Daniels, but may have been a Tandaran agent instead.  Although Daniels could’ve disguised himself as a Tandaran.
389	While we know that Korath will eventually invent the chrono-deflector, it may not be a direct outgrowth of his discussion with Nart here, since the device as seen in “Endgame” appears to be based on tachyons rather than chronitons.
391	Choudhury’s reference to “future echoes” is a nod to the Red Dwarf episode of the same name.  They could be explained in terms of advanced waves (see next note).
392	Theory says that every EM wave actually does have components propagating both forward in time (the retarded wave) and backward in time (the advanced wave), but advanced waves from the future are cancelled out by retarded waves from the past so that they have no effect on the present.  But it’s been theorized that there might be circumstances where advanced waves could have an effect on the past.  They’ve been proposed as the culprit in the seemingly instantaneous reaction of quantum-entangled particles to changes in each other’s states, or the way a photon in a two-slit experiment can seemingly “know” in advance whether it will pass through one slit or two.  Advanced waves are the basis of the tachyon theory in Benford’s Timescape, which, again, was based on his actual research as a physicist.
Chapter XVIII
394	Date: roughly 18,000 years before present.  The Tarantian, aka Late Pleistocene, covered about 126,000 to 12,000 years BP.  The Lower Pliocene or Zanclean age was from 5.3 to 3.6 million years BP.
	The sabertoothed spider-ape is based on another creature description from the original outline for “The Cage,” found in the same paragraph as the lemur people that inspired the Caratu’s description.
404	Ma-aira Thenn is another ancient civilization I mentioned in passing in The Buried Age.
405	Half a million years ago is the time when the transitional species leading up to Homo sapiens began to emerge.  Anatomically modern humans arose around 200,000 years ago.
406-7	The geometry of Axis spacetime is not unlike that of many old computer games such as Asteroids in which a ship that flew off one side of the screen reappeared on the other.  The off-axis dimensions are what’s known as “finite but unbounded.”
Chapter XIX
409	Dates: Various from Feb. 14-18, 2382.  I chose the Andorian calendar since, as a Jovian moon, Andoria’s “day” would most likely be equal to its orbital period around the Jovian, making it several standard days long, enough to encompass the many time jumps in this chapter.  For more information, see Alien Calendar Notes.
	“Undisclosed moon” has become “Third moon” since the Enterprise team has now arrived and its members know which moon it is.
	The spacetime distortions in the lunar facility are along the same lines as those experienced in VGR: “Shattered,” with elements of the Manheim Effect, alternate timelines, and other Trek temporal anomalies thrown in.
411	his confused brain insisted on perceiving the doorway itself as the interface between time frames: Time-jumping stories like “Shattered” and the Gene Roddenberry’s Andromeda episode “Ouroboros” tend to use existing doorways as the transitions between different segments of space and time, though not always (one transition point in “Shattered” was shown to be in the turboshaft below the bridge).  This is an attempt to rationalize that contrivance.
412	The Shanial Cabochons are from my own debut Trek story, SCE: Aftermath.  The Koa containment device was from a later SCE story, “Small World” by David Mack.
414	“Not your job anymore, sir”: Of course, Worf was the Enterprise security chief for most of TNG.  The thing Dulmur perceives between Choudhury and Worf but Lucsly misses is the romantic history between them, as detailed in TNG: Greater Than the Sum, Destiny, and TNG: Losing the Peace.
417	The powerful energy cannon the Na’kuhl offered to the alternate-timeline Nazis in ENT: “Storm Front” was a modulating plasma pulse weapon.  It’s plausible that their hand weapons could be based on the same principle.
418-20	It took very complicated planning to outline the events of this chapter.  I had to start with the hypothetical unaltered history and then project how each future faction would’ve gone back to alter it, the consequences of that alteration, and the response of other factions.  I made a chart which listed, not necessarily distinct timelines (since there are causal loops, overlaps, and mergers), but distinct stages of causal progression from past to present to future, with each jump back into the past starting a new line on the chart.  I ended up with 12 “timestreams,” most of which are just background; our viewpoint characters don’t “arrive” until stage 9, though they find themselves overlapping with individuals from multiple earlier stages.Here’s a reproduction of the chart from my notes.  Read each row left to right, then down to the next row, but be aware that events from a later tier can loop back up and interact with an earlier tier.  For the purposes of this sequence, pretty much all these tiers run in parallel rather than successively replacing each other.  The numbers in the “Future” column represent the century of the events listed.  The “/n” notation means “continuing from timestream n,” e.g. the Augments listed in 2 Past after “/1” are the same ones sent back from 1 Future.
	Timestream Past Present (2/17) Future 1 (hypo- thetical) Vard holds conference 28: Harnoth sends back Romulan Augments 2 /1: Romulan Augments infiltrate conference Augments assassinate conf. guests 29: Ducane goes back to save guests 3 /2: Ducane saves guests from Augments 29: Na’kuhl send back bomb 4 /3: Na’kuhl bomb planted Ducane, guests killed in blast 29: TIC beams out Ducane before blast 5 /4: Ducane intercepts Na’kuhl; they jump away, he pursues into /6 (earlier) /2A Ducane saves guests from Augments 6 /5: Ducane, Na’kuhl fight, encounter Noi from /10; events tip off Augments of TIC involvement Augments ready for Ducane, kill him, guests, & DTI 29: TIC beams out Ducane before death 7 /6: Ducane goes back before Na’kuhl, stops them, Augments Vard holds conference 28: Harnoth sends back Augments 29: Na’kuhl warn agents in past 8 /7: Na’kuhl arrive and lie in wait Na’kuhl attack, wound Ducane before he confronts Augments— creates past/present link, temp. distortions 27: Aware of temp. distortions, Shirna, Vorgons send agents to conference 29: With Ducane near his limit, TIC contacts Aegis for help 9 Aegis Supv. 341, Rodal Eight, arrives at site (before chron. field raised), joins /6 Ducane, defeats Na’kuhl, ambushed by Vorgons, flee into present Distortions create link between past and present; Rodal & /6 Ducane encounter /8 Ducane while fleeing Vorgons into present; DTI, scientists caught up in distortions 31: FTA becomes aware of crisis, sends Jena Noi back to clean it all up 10 /9: Noi arrives before Ducane, is waylaid by Shirna; crosses into /6, encounters /5 Ducane fighting Na’kuhl, saves him; she puts up quantum block; they cross to present Noi and /5 Ducane arrive in present of /6, witness deaths; Na’kuhl follow them, mortally wound Noi; DTI briefly cross into /6, see deaths (but not Noi’s wounding), flee; DTI cross into future of /2, then back into present, then into past Cycle of /6 to /9 leads to FTA sending Noi back 11 /9: Noi arrives before Ducane, is waylaid by Shirna; meets /10 DTI, diverted from prior course, crosses with them into present DTI, Noi hook up with Rodal & /6 & /8 Ducane; they fight various foes; they find /5 Ducane, who leads them to dying Noi; she merges with self, gets up to speed; E-E team cross back to past 12 /11 E-E team arrives after disruptions begin but before quantum block; Elfiki gets thrown back to Pyrellia
	I don’t claim that this a perfectly consistent or comprehensible chart.  These events are supposed to be confusing to the readers and characters, and they were certainly confusing to the author.  The chart is just a rough approximation of the convoluted, nonlinear causality here, but it served to give me a reasonably coherent road map for plotting and writing the sequence.
	Note that the Ducanes are numbered in reverse causal order.  “Ducane-1” is /8 Ducane in the chart’s notation; “Ducane-2” is /6 Ducane; and “Ducane-3” is /5 Ducane (AKA /2A Ducane).
421	The temporal disruptor was the weapon used to destroy Voyager in “Relativity.”
422	A Class N planet is Venuslike, so that’s the kind of atmosphere Elfiki is talking about here.
	The subspace fractures are similar to those in VGR: “Time and Again.”  They’re also, aptly, a rather large plot hole.  If they’re outside the quantum lock, then they should be allowing entanglement with the rest of the universe and triggering the very timeline collapse that the lock is supposed to prevent.  The only hint of an excuse I can offer is that there are still active alternate timestreams further in the future than this point, so any large-scale effect on the timeline as a result of passage through a fracture can still be cancelled out uptime.  Thus, it’s the state of affairs at the end of the quantum-locked time segment, the point when the lock is released, that’s ultimately decisive.  Not a perfect explanation, but an adequate handwave.  It helps that the only evident survivor of a temporal rift is Elfiki, who managed to integrate her presence smoothly into the timeline.  Ducane-2 might also have survived, but would’ve presumably been similarly cautious even if he weren’t promptly retrieved by the TIC.
424	Wolf 1246 is a real M-dwarf star: http://www.stellar-database.com/Scripts/search_star.exe?Catalog=Wolf&CatNo=1246
Chapter XX
426	The characters are still technically jumping around between February 14 and 18 relative to the outside world, but essentially, to quote The Middleman again, time has no meaning or relevance.
	The Jovian gases pour out from the rift rather than sucking someone in because the pressure in the Jovian atmosphere would be much greater than that in the moonbase.  A Class-N atmosphere would be under high pressure at the surface, but the rift that claimed Ducane-1 probably opened at a very high altitude.
430	Ducane’s “temporal tricorder” is the TR-890 Tricorder Mark XV seen in “Relativity,” shown at the bottom of this page: http://offworldgirl.blogspot.com/2015/11/star-trek-cosplay-tricorders.html The term “temporal tricorder” comes from the AOY sourcebook.
	Rodal’s servo is presumably similar to Gary Seven’s, but styled to resemble a Cardassian writing stylus rather than a 20th-century Earth pen.
	The temporal defense grid was my first idea for the Abrams movie-sequel novel that became Seek a Newer World (and was then cancelled).  I figured it would be developed by a Vulcan scientist as a defense against further attacks from the future, and the Enterprise would be assigned to test it.  However, I decided the idea lacked the level of action appropriate for that project, and shelved it with the hopes of using it later.  It ended up fitting in well here.
431	Noi implies here that the effort to expand the Khitomer Accords will ultimately succeed.  However, she’s deliberately cagey on the future of the Typhon Pact.  The other powers have been around long enough that it’s no real spoiler that they’ll survive another century or two.
	Before proceeding with this idea, I checked all canonical time-travel stories and many of the novels, and I could find no examples of uninvited temporal incursions in the future which would contradict the idea of the defense grid.
433	“only one history will survive”: Note that Noi is referring only to those timelines that have been created by time travel and mutually entangled within the Temporal Cold War, not to all timelines.
434	The strategy of creating multiple near-parallels of one’s home timeline is based on ideas David Mack used in his novel The 4400: Promises Broken, although its application is a little different here due to different physical assumptions.
435	“That was my first death”: Agent Daniels was apparently killed in “Cold Front” but then returned, saying he had only died “in a manner of speaking.”  One possible explanation is that he did, in fact, die, and that the Daniels we saw later was from earlier in his own lifetime.  But it could’ve been an alternate Daniels who died, or the FTA could rescue its agents from just before the moment of death in the same way the TIC did.  I chose to maintain the sense of mystery rather than offering a clear explanation.
	The Sphere Builders were the Big Bad in season 3 of ENT, the Xindi arc.
	Lucsly’s expository paragraph about the Sphere Builders would be badly contrived coming from any other character, but from Lucsly it works perfectly.  He’s just the kind of guy who would talk that way.  I just wish I could’ve made this a running gag to sell that better.  This manner of exposition is inspired by the dialogue style in The Middleman and in Mathnet, an educational Dragnet parody series that aired on PBS from 1987-92.  The agents’ repeated use of “Mm-hm” throughout the book probably owes more to Mathnet than Dragnet.
	Noi’s comment about the laws of probability could be a confirmation of Naadri’s idea of anti-time arranging for the cancellation of temporal anomalies, or it could just be a figure of speech similar to invoking fate or luck.
436	“Daniels” was probably not the Temporal Agent’s real name; it seemed to be simply the alias he used as an Enterprise crewman, and Archer continued to call him that over the years because he had nothing else to call him.  The DTI agents know Jena’s real name because they’re professional colleagues who interact on official Accordist business; she’d probably use pseudonyms when dealing with mundanes.  So why doesn’t she tell them Daniels’s real name?  They don’t need to know it.  Plus it’s simpler just to use the name they know him by.
437	Shelan’s few days of gene therapy would’ve been suspicious if they’d been noticed, so Noi probably did use limited time travel to return her to the moment of her departure.  Shelan would’ve been okay with this as long as she weren’t sent to an earlier time than that.
	I regret that I couldn’t actually depict Shelan’s final mission from her POV.  But the mystery/procedural style of this story forbade it.  Shelan’s erasure was a crime the detectives had to investigate and solve.
438	The only way to reconcile my idea of the Sponsor’s involvement in the Eugenics Wars with the portrayal of Project Chrysalis in the Eugenics Wars duology was to postulate that the Chrysalis scientists were unaware their knowledge came from an alien source, since the EW novels had scenes from the scientists’ viewpoints in which they clearly thought of their breakthroughs as their own work.
439	Noi’s (and implicitly every Temporal Agent’s) phase-discriminator shielding explains how Daniels survived the historical alteration in ENT: “Shockwave,” though it doesn’t explain why he was the only one.
446	It’s true that the chrono-deflector is the earliest actual time machine invented by any contemporary power seen in ST.  Earlier time travels tended to rely on ancient devices, superbeing intervention, or cosmic accidents.  The use of a warp slingshot maneuver was depicted on occasion as a somewhat reliable means for controlled time travel, but as discussed above, it was practical to assume herein that this was a risky undertaking that rarely succeeded.  Also, it’s a repurposing of a technology intended for other uses.  Of all the actual, dedicated time machines seen in ST, the chrono-deflector is the first one invented by a contemporary civilization.  (At least, if we assume Korath invented it rather than unearthing it somewhere.  Its compatibility with standard spacecraft systems suggests that is the case.)
Chapter XXI
448	I’ve now abandoned the use of geological time within the Axis since it isn’t useful for the far future.  And I could find no other million-year timescale that would be suitable.  There’s a thing called the galactic year, but there’s no consensus on its definition, and it’s on too large a timescale to suit my needs.  So I regretfully had to settle for the prosaic “millennia After Present.”
454	In Hindu spiritual belief, the fourth chakra (nexus of spiritual energy), Anahata, is located around the heart and governs love, passion, and devotion.  The sixth chakra, Svadhisthana, is located in the vicinity of the reproductive organs and is associated with relationships, creativity, and joy. The symbolism I intended should be pretty clear.
456	The shutdown of the parietal lobe removes one’s perception of oneself as a distinct entity from one’s environment or other people.  It’s associated with the unitive experience discussed in the Chapter V notes above, as well as with meditative or religious visions.
Chapter XXII
458	“D-Day” doesn’t refer exclusively to June 6, 1944, but is a general military term for a target date when something important is to occur, such as the start date of an operation.  It has the broader connotation of a decisive moment.  “Eleventh hour,” of course, is used here idiomatically to mean the last moment, the nick of time, etc.
	The cybernetically enhanced shock troops are inspired by the future Starfleet security personnel from the abortive Star Trek: Final Frontier animated series proposal from 2006, which would have been set in the twenty-sixth century.  Information about the series is available at http://zeroroom.squarespace.com/.
462-3	The specifics of the reconstruction of Shelan’s signal are handwaving, but extrapolated from real physical concepts.  See Science Links on page 1 for more.
464-5	I wanted to reveal who Future Guy was without definitively closing off the option of telling further stories about him in the ENT timeframe, so I included his flight and pursuit in order to leave room for such stories.  His involvement in the Romulan War is a nod to statements made by ENT showrunners Brannon Braga and Manny Coto that Future Guy would’ve probably turned out to be a Romulan involved in instigating the war. (However, the subsequent Romulan War novels by Michael A. Martin made no use of the character after all.)
	It feels like cheating to have the culprit be a character who wasn’t previously established, but the structure of the novel, in which the viewpoint characters don’t actually travel through time, precluded introducing Harnoth beforehand.  Essentially, the core of the mystery in this tale isn’t who Future Guy is, since he was unlikely to be anyone we’d ever met before, but why he did what he did.  Hopefully I was able to play straight with regard to that mystery by laying an adequate foundation of clues.
466	The cataclysmic timeline Daniels is referring to here is another nod to the Final Frontier animated series premise.
	Many fans have felt that Future Guy was probably a Romulan, and of course the producer statements above supported that.  I wanted to acknowledge that expectation while still offering some surprises.
Chapter XXIII
469	Date: February 14, 2382.  Not only the Chinese New Year, but Valentine’s Day as well, though no symbolism is intended there.  The Year of the Water Tiger, Cycle 84 could also be rendered as 5019 AC.  There is some difference of opinion on whether this would be in Cycle 84 or 85 of the traditional Chinese calendar, depending on whether the epoch (starting point) is considered to be the date Emperor Huang Di is traditionally said to have invented the calendar or the date 60 years earlier when his reign is said to have begun.  If it’s assumed to be Cycle 85, the year would be 5079 AC.
	This scene on Bezorek Station is set three days before Lucsly & Dulmur’s arrival at Vard’s moonbase.  However, it’s close to simultaneous with the earliest endpoint of the undifferentiated temporal mass in which the past few Lucsly/Dulmur chapters have taken place.  And across such a great distance of space, simultaneity is illusory anyway.
470	Are the Zcham what humans will evolve into in the distant future of the Trek universe?  Well, evolution is a branching process, not a ladder.  Humanity will probably branch out into multiple descendant species.  It’s implicit in Wesley Crusher’s ascension to Travelerhood that humanity has the potential to develop into an at least semi-incorporeal stage, but as I discussed in The Buried Age, it’s unlikely that an entire species would make that transition in lockstep.  Probably there would be branches of the species that remained corporeal and evolved in different directions.
472	Date: Feb. 18, 2382.
476	Naturally I’m hedging my bets by leaving it ambiguous whether the future I portray here will actually come to pass.  Future authors need to have the freedom to take the course of events in different directions if it suits the story.  I’ve also made a point of saying that the Temporal Cold War never truly ends, and hinted that there could be alternate realities where Future Guy is still an active threat.  So I’ve given answers about the TCW without closing off the possibility for further storytelling about it.
478	Is Lucsly making a time pun here, in defiance of his usual hatred of them?  I think that by his lights, he’s answering sincerely and literally.  Or maybe Jena’s kiss was just that good.  Either way, between this and “I’m not at liberty to say” in the Risa chapter, Lucsly gets some killer punch lines in this book.
Chapter XXIV
479	Yes, there are 24 chapters in the book, designated by Roman numerals as on a clock face, particularly the Shepherd’s Gate Clock on the cover.  This is completely intentional.  Though I had to make the last two chapters fairly short to bring it about.
	Date: Feb. 26, 2382.  The Hebrew calendar is used to represent the Suliban, a persecuted nomadic culture similar to the Hebrews.
481	The backstory of the XCV-330 is based on the text from the centerfold of the 2011 Ships of the Line calendar, which became available during the writing of this book.  I would’ve loved to do more with the ringship, maybe a whole flashback chapter, but I couldn’t find a place for it.  The chronology of the ringship’s career was not established in the calendar, so I kept things flexible by having the replica flight (which would’ve been midway through Shelan’s training, probably in May 2379 give or take a bit) commemorate the final flight of the original rather than its initial flight.  The final flight would thus have been somewhere around May 2129, the initial flight an unspecified time before then.
Epilogue
486	Date: I wouldn’t tell even if I knew.  Probably at least a few years on.
486-7	Yes, Dulmur finally accepts a promotion to assistant directorship.  When this event takes place probably depends on whether I get to do any sequels. (Edited to add: And indeed I did.)
	Lucsly’s being a little unfair to historians here.  One of the big things in modern historiography these days is “subaltern” history, looking beyond the traditional focus on rulers and generals and focusing more on the perspective of the little guys, the women in male-dominated societies, the underclass in class- or caste-driven societies, etc.   Still, his premise serves the needs of this story.
	Throughout this book, my goal was not to turn Lucsly and Dulmur into action heroes, but to be faithful to their drab, rigid, bureaucratic persona as portrayed in “Trials and Tribble-ations”… and to make it a virtue.  Lucsly’s speech here, and this whole scene, is the culmination of that notion.
488	The famous physicist Lucsly’s referring to is probably Vard.  He’s just the type who’d seek celebrity as a science popularizer (which is not to imply that real science popularizers are all driven by celebrity, of course — just that he’s the type who’d see it that way).

—

TIME TRAVEL EPISODE REFERENCES

In the course of DTI: Watching the Clock, I managed to incorporate at least a fleeting reference to essentially every Star Trek episode and film concerning time travel, though sometimes they’re very fleeting, only to a single concept or term from an episode, and sometimes a single reference implicitly encompasses two or more episodes.  Here’s a key:

ENT: Essentially the whole Temporal Cold War and Xindi arcs are referenced collectively; however, there are individual references to each of the time-related episodes of the series.

• “Broken Bow”: Cabal attempt to trigger Klingon Civil War referenced in Ch. XI.
• “Cold Front”: Cabal saving Enterprise from sabotage ref. in Ch. XI.
• “Shockwave”: Attack on Paraagan II and aftermath ref. in Ch. XI and elsewhere; also, Jena Noi’s built-in phase discriminators in Ch. XX implicitly explain how Daniels survived the timeline shift.
• “Future Tense”: Tholian clash with Cabal ref. in Ch. III, IV, IX; Chronological Defense Corps implied to be behind the Tholians’ actions here.
• “Carpenter Street”: “Ansible beacon” in Ch. XX is passing allusion to “temporal beacons” in episode.
• “Twilight”: Though these events are unknown in the Prime timeline, interphasic parasites are referenced in Ch. V.
• “Azati Prime”: Sphere Builders’ 26th-century attack alluded to in Ch. XX.
• “E2”: Events of episode alluded to in Ch. IX.
• “Zero Hour”: Archer’s defeat of Sphere Builders’ plans alluded to in Ch. XX.
• “Storm Front”: Na’kuhl featured prominently in novel; specific events of episode alluded to in Ch. XIII.

TOS/TAS:

• “The Naked Time”: Events of episode referenced in Ch. V.
• “Tomorrow is Yesterday”: Black Star referenced in Ch. IV; events ref. in Ch. V; use of transporter reintegration ref. in Ch. XI.
• “City on the Edge of Forever”: Events ref. in Ch. V; Guardian alluded to several times.
• “Assignment: Earth”: Events ref. in Ch. V; Gary Seven repeatedly referenced; Aegis prominently featured.
• “All Our Yesterdays”: Sarpeidons alluded to in Ch. VII.
• “Yesteryear”: Events ref. in Ch. V, XVI.
• The Voyage Home: Events ref. in Ch. V

TNG:

• “We’ll Always Have Paris”: Followed up in Ch. II & IV; Manheim’s theories influence much of story.
• “Time Squared”: Followed up in Ch. IV.
• “Yesterday’s Enterprise”: A Kerr-loop time vortex is alluded to in Ch. I.
• “Captain’s Holiday”: Preceded/followed up in Ch. VII.  Vorgons prominently featured.
• “A Matter of Time”: Berlinghoff Rasmussen alluded to in Ch. X; time-travelling historians mentioned in Ch. I, elsewhere.
• “Cause and Effect”: Followed up in Ch. X; Bozeman prominently featured.
• “Time’s Arrow”: Events discussed in Ch. X.
• “Tapestry”: Obliquely acknowledged by Faunt’s Ch. I reference to Q practical jokes.
• “Timescape”: Analogous time-flow anomalies referenced in Ch. XVII; DTI’s use of phase discriminators is derived from this episode.
• “Firstborn”: The Cambra system, where future Alexander met a man with the means to send him through time, is established in Ch. X as Korath’s home, obliquely implying that Alexander used Korath’s chrono-deflector.  The time travel in this episode was apparently never reported to the DTI.
• “All Good Things…”: Anti-time concept referenced repeatedly.
• Generations: Nexus alluded to in Ch. V.  Closing scene quoted in dedication.
• First Contact: Followed up in Ch. XIV, elaborated on in Ch. XX.

DS9:

• “Past Tense”: Alluded to by Felbog in Ch. III; first mention of “Temporal Investigations.”
• “Visionary”: Referenced in Faunt’s thoughts in Ch. XIII.
• “The Visitor”: Unclear whether these events are known in the Prime history.  But the concept of a subspace entanglement between two individuals is implicit in Faunt’s thoughts about “Visionary.”
• “Little Green Men”: Referenced by Cyral Nine in Ch. XII, Dulmur in Ch. XVI.
• “Accession”: Referenced in Ch. XIV.
• “Trials and Tribble-ations”: Debut of Lucsly & Dulmur; first mention of full name of DTI; events followed up in Ch. XIV.
• “Children of Time”: Events alluded to in Ch. IX, XVI.
• “Wrongs Darker than Death or Night”: Events alluded to in Ch. XVI.
• “Time’s Orphan”: Golana time portals ref. in Ch. XVI.

VGR:

• “Parallax”: Alluded to in Ch. XVI.
• “Time and Again”: Events unknown in Prime history, but subspace fractures are referenced in Ch. I, XIX.
• “Eye of the Needle”: Events referenced in Ch. X.
• “Death Wish”: Q calling witnesses from the past (very) obliquely acknowledged by Faunt’s Ch. I ref. to Q practical jokes.
• “Future’s End”: Events discussed in Ch. XVI; Temporal Integrity Commission prominently featured.
• “Before and After”: Events discussed in Ch. XVI; chroniton torpedoes used by alternate Tandarans in Ch. XIV.
• “Year of Hell”: Events not known in Prime history, but a method of rewriting history equivalent to Annorax’s is alluded to by T’Viss in Ch. XV.
• “Timeless”: Obliquely referenced in Ch. XVI.
• “Relativity”: Ducane, TIC prominently featured; events referenced in Ch. XI.
• “Fury”: Events referenced in Ch. XVI.
• “Shattered”: Events largely unknown in Prime history, but equivalent effects are experienced in Ch. XIX to XXII.
• “Endgame”: Followed up in Ch. XVI, discussed in Ch. XVII.

New Universe:

• Star Trek (2009): The theoretical discussions in Ch. III and V about the “safe” creation of alternate timelines implicity explain the coexistence of the Prime and Abrams timelines.  Meanwhile, any resemblance between T’Pan’s dangerous new discovery in Ch. XV and the movie’s “red matter” is purely hypothetical.

The book also includes references to several parallel-timeline episodes:

• ENT: “In a Mirror, Darkly”: Felbog’s discussion in Ch. III about probabilistic resonances may also explain why the Mirror Universe parallels certain aspects of the Prime timeline so closely; the arrival of the Defiant in the past may have created a partial entanglement that causes the MU’s events to correspond in some respects to Prime events.
• TOS: “Mirror, Mirror”, TNG: “Parallels,” and DS9: “Crossover” and “Through the Looking Glass” are directly referenced in Ch. XIV.  Subsequent Mirror Universe episodes are not directly referenced, but since the overall concept of the MU is referenced, they’re implicitly covered.