Reference > Chronology

The following information is drawn from Enterprise episodes, novels, and short stories, except where otherwise noted. Speculative dates are marked as such, and explanations are given. This information is not intended to be authoritative, merely a guide, and other interpretations of events are possible.

Includes detailed analyses of "Broken Bow" through "Unexpected" and "Shockwave, Part II" through "A Night in Sickbay", and basic information through "Storm Front, Part II". Also includes a detailed analysis of the short story "Preconceptions" (SNW VI) and basic information from the short story "A Girl for Every Star" (SNW V).

The Past

A book is written in a particular language. At some point after the book is written, the civilization that created the book dies out ["Exile"].
The book was written "over a thousand years" before the episode, according to Tarquin.

A spherical station is constructed ["Anomaly"].
Nearly a thousand years before the episode.

The Loque'eque become sterile. Unable to reproduce, they develop a mutagenic virus designed to transform any alien who encounters it into a Loque'eque, complete with certain knowledge about the geography of the planet and images of the main city ["Extinction"].
Several hundred years before the episode.

Before 1750

Tarquin is born. At some point after his birth, he is discovered to be telepathic and is exiled to a new planet. His parents give him a telepathy-enhancing orb ["Exile"].
He was born over 400 years before 2153.

c. 1850

Several people are abducted from Earth by a group of Skagarans. They are taken to a new planet ["North Star"].
About 300 years ago.

Cooper Smith, one of the Humans abducted by the Skagarans, leads a revolt and overthrows the oppressors of the Humans ["North Star"].
Some years after the adbuction.

1944

Episode 76: "Zero Hour" [time travel]

Altered Timeline: Enterprise arrives from February, 2154.

[More details forthcoming]

2004

Episode 63: "Carpenter Street" [time travel]

TBA.

c. 2030

A planet, which Kessick claims is the Xindi homeworld, is destroyed ["The Xindi"].
About 120 years before the episode.

Before 2050

Tarquin's fourth companion dies. He will (apparently) not communicate with another being for over a hundred years. ["Exile"].
She died over 100 years before 2153.

2088

T'Pol is born ["Zero Hour"].
T'Pol is nearly sixty-six years old in February 2154. Assumes she is referring to Earth years/

c. 2090

Aliens begin studying Loque'eque after millions of their own population is infected by the virus ["Extinction"].
About sixty years ago.

Before 2151 (No particular order)

Hoshi

When her grandmother serves her sova noodles, Hoshi says her stomach is unsettled to avoid eating them. Later in life, sova noodles become one of Hoshi's favorite foods ["Exile"].

Hichio, one of Hoshi's grandfathers, dies. He is one of the last people Hoshi is very close to, according to Tarquin ["Exile"].

Hoshi's parents learn she is gifted, and she is sent to private tutors in linguistics ["Exile"].

Hoshi eats pepperoni pizza at Fiorella's on Fountain Street in San Francisco ["Exile"].

2153

Before "The Expanse"

The Enterprise which had been thrown back in time tries to prevent the launch of the first Xindi weapon, but is unsuccessful ["E²"].
Presumably only a few days before the attack.

Episode 52: "The Expanse"

A few crewmen leave the ship ["The Expanse"], including Crewman Fuller (the woman who saw Archer enter T'Pol's quarters back in March ["Shockwave, Part II"). Replacements come aboard, including a new crewman also named Fuller, who works in the armory and learns the ship's weapons systems quickly ["Anomaly"].
While there are several possible explanations for why "Crewman Fuller" referred to a female in "Shockwave, Part II" (with no hint that there was another crewman by the same name) and a male in "Anomaly"--such as Crewman Fuller undergoing a sex-change operation--the one which seems to fit best is the one which uses events described in intermediate episodes to explain the situation.

Enterprise's universal translator is upgraded, and Hoshi is trained on the new system ["Exile"].

Trip picks up a crate of Georgia peaches. Chef places them in statis ["Extinction"].

Between "The Expanse" and "The Xindi"

Hoshi begins studying the Vulcan database's information on medieval Klingon ["Exile"].
Conjecture. Hoshi is familiar enough with medieval Klingon in late 2153 to compare a dead language to it. She may have spent the weeks between major adventures studying various languages.

A contact informs a Xindi-Reptilian of the entry of Enterprise into the Delphic Expanse ["The Xindi"].

Enterprise encounters a freighter, whose captain tells Archer of a Xindi passenger he delivered to a mine a few years prior. It is the first lead the crew has gotten in the nearly six weeks they have been in the expanse thus far ["The Xindi"].
Shortly before the episode.

Third Season

Ep# Title Timeline
53 "The Xindi" Starts about six weeks into the Expanse; August 22 at the earliest, maybe later. Spans at least two days; the final scene may be a few days later.
54 "Anomaly" At least one day. Shortly after "The Xindi".
55 "Extinction" TBA.
56 "Rajiin" Spans about two days.
57 "Impulse" TBA.
58 "Exile" Spans about five days.
59 "The Shipment" Takes place six or seven weeks after "The Xindi", so probably early October.
60 "Twilight" Apparently takes place in October 2153; includes time travel.
61 "North Star" TBA.
62 "Similitude" TBA.
63 "Carpenter Street" TBA. Includes some time-travel elements.
64 "Chosen Realm" TBA.
65 "Proving Ground" Includes December 6, 2153.
66 "Strategem" Includes December 12, 2153.
67 "Harbinger" Includes December 27, 2153. Spans several days; 2154 begins in the middle of the episode.
68 "Doctor's Orders" TBA.
69 "Hatchery" Includes January 8, 2154.
70 "Azati Prime" TBA.
71 "Damage" TBA.
72 "The Forgotten" TBA.
73 "E²" Spans two to three days. Flashbacks to 2037, March 2153, and other dates.
74 "The Council" TBA.
75 "Countdown" Includes February 13, 2154.
76 "Zero Hour" Includes February 14, 2154; time travel to 2161; unknown ending.
 
Aug
2153
  1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31  
 
Sep
2153
  1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30  

Episode 53: "The Xindi"

Starts six weeks after "The Expanse" (therefore in mid-August or later).

Around a table, the members of the Xindi Council discuss what to do about the Earth vessel which has entered the Delphic Expanse. The Xindi-Insectoid councilman worries that this marks the start of an invasion; one of the Xindi-Humanoid councilmen feels the ship's arrival may have nothing to do with the probe.

Continues...

Between "The Xindi" and "Anomaly"

For the first time in months, Trip sleeps like a baby ["Extinction"].
Due to his session with T'Pol.

Ossarians attack a vessel, leaving 17 unidentified aliens dead. The vessel is left adrift ["Anomaly"].
Two days before Enterprise encounters the ship.

Episode 55: "Extinction" [teaser]

Decon Agents hunt down an alien who had been Loque'equeified.

Between "Extinction" [teaser] and "Anomaly"

Trip cancels a session with T'Pol ["Extinction"].

Trip cancels another session with T'Pol ["Extinction"].

Episode 54: "Anomaly"

Spans at least one day. Shortly after "The Xindi".

[More details forthcoming]

Between "Anomaly" and "Extinction"

Archer spends half the night studying the Xindi database. He discovers a third species of Xindi and studies their star charts ["Extinction"].

Trip picks up a peach from Chef ["Extinction"].

Episode 55: "Extinction"

Main action spans at least three days; the teaser takes place roughly two weeks earlier (before "Anomaly").

Night One: Trip arrives for a session with T'Pol, after cancelling two previous. He offers T'Pol a peach. She begins massaging Trip, but is interrupted by the Captain. Archer tells her about the planet the Xindi vessel most recently viisted, about a day away from their current position, and they set a course.

Night Two: The ship arrives and, after scanning the planet, Archer, Reed, T'Pol, and Hoshi come down in Shuttlepod One. They investigate another shuttle and two aliens they find dead nearby. The four Enterprise crewmen become infected, and the three Humans begin a metamorphosis into another race, while T'Pol becomes ill. T'Pol calls the ship warning them that something is affecting them. T'Pol uses Hoshi's universal translator and uses it to attempt communication with the creatures the other crewmen are turning into. On the ship, Trip works with Phlox and Mayweather to try to find out what happened to the others; Trip orders Mayweather to prepare Shuttlepod Two, and to use EVA suits.

Archer-Creature and the other transformed Humans take T'Pol in search of a place called Urquat. Reed finds a tree with wormy eggs and brings down two of them. Hoshi-Creature eats from one, while Reed-Creature and Archer-Creature fight over the other one, with Archer-Creature winning. He offers some of the egg to T'Pol, who declines. Reed-Creature shares some of Hoshi-Creature's egg.

Trip and Mayweather, along with MACOs Chang and Palmer, land on the planet with Shuttlepod Two and begin searching for the others, who hide. Chang is knocked out and Trip is attacked, but T'Pol prevents Archer-Creature from attacking him again. T'Pol orders Trip to take Reed-Creature back to the ship.

Morning Three?: Back on the ship, Phlox studies the creature formerly known as Malcolm and discovers that a mutagenic virus has attacked his DNA, altering it and therefore him. Two ships come out of warp and tell Trip that their ship is under quarantine.

Dream Sequence: Archer-Creature discovers Urquat, a city full of Loque'eque. He is confronted by Archer-Human.

The Alien captain comes aboard and studies Reed-Creature. He returns to his ship. Phlox tells Trip that they have only about two hours left before the virus completes its transformation; Trip rushes out to T'Pol's quarters and finds her bitten-into peach, which should have some of her original DNA. The Alien captain launches a shuttle to the surface.

Archer-Creature leads Hoshi-Creature and T'Pol to Urquat, which fell to ruins long ago. Hoshi-Creature is dismayed; Archer-Creature describes the gardens, the fountain, and the thousands of people who lived there. The Alien decon agents advance into the city and hunt down the three crewmen. Archer-Creature attacks one of the agents and tears his encounter suit. They leave the alien lying on the ground, and when his comrades find him, they flamethrower him to a crisp. Just as the Enterprise crew leave the caves, more decon agents find them and prepare to attack; Trip and security beam down and subdue the attackers.

[More details forthcoming]

Between "Extinction" and "Rajiin"

Phlox gives Archer an ointment for the itching ["Rajiin"].

Archer begins dreaming about the Loque'eque city ["Rajiin"].

Archer visits B'rat Ud at the deuterium station on Norellus ["Rajiin"].
Don't know how recent this was.

Malcolm and Charlie purge a {something-or-the-other}. Malcolm teases Trip about his visits to T'Pol's quarters ["Rajiin"].
Said to be "last week".

Two Reptilian Xindi arrive on a water planet. They purchase two serpent women from the slave trader ["Rajiin"].
Also said to be "last week".

An anomaly goes through the exobiology lab. Crewman Cutler breaks her arm ["Rajiin"].

Episode 56: "Rajiin"

Starts shortly after "Extinction". Spans approximately two nights. Xindi Council scenes may be further apart.

[More details forthcoming]

Episode 57: "Impulse"

Placement TBA.

Before "Exile"

Tarquin notices Hoshi and begins trying to make contact with her ["Exile"].

Reed hears a clicking noise in his quarters ["Exile"].
"Just the other day".

T'Pol analyzes the anomalies and comes to a realization about additional spheres ["Exile"].

Episode 58: "Exile"

Night One: Hoshi has a vision of Tarquin. T'Pol tells Archer about the second sphere. Hoshi asks Reed to check the security logs but he finds nothing unusual. T'Pol asks Hoshi to translate a portion of the Xindi database. Hoshi asks Phlox to examine her. Hoshi works in the command center with the Xindi database and has another vision of Tarquin in his palace. Reed arrives and startles out of her vision. Hoshi goes to Phlox again and he checks her again. Archer posts additional security around critical sections of the ship. Hoshi feeds Dr. Phlox's animals and has a third vision; Tarquin offers to help find the Xindi. Hoshi talks to the Captain, who decides to alter course to Tarquin's planet.

Morning Two: Hoshi, Reed, and Archer take a shuttlepod down to Tarquin's castle. Tarquin introduces himself and asks for an item from the Xindi; he says he will need a few days to study the item, and he'd like Hoshi to stay with him. The Starfleet crew return to Enterprise and discuss Tarquin's request; they decide Hoshi can stay, and go back to the planet with a piece of the Xindi weapon that attacked Earth.

Night Two: Tarquin has dinner with Hoshi, offering her pepperoni pizza, macaroni and cheese, a cheeseburger and fries, and a dessert from another planet. Hoshi retires for the evening, and he offers her a book written in a dead language to give her something to do.

Day Three: Enterprise approaches the second sphere, and anomalies pulse throughout the ship. Trip begins coating a shuttlepod with Trellium-D, a process that will take about 36 hours to complete.

Night Three: Hoshi approaches Tarquin and he offers to let her use his telepathy orb. She sees images from her memory, as well as an image of a Xindi-Reptilian who turns to look at her, startling her out of the experience. Hoshi looks through the gardens. Seeing a glass door, she goes through and finds herself outside in a cemetery. Tarquin explains his that four previous companions died due to old age. Hoshi is aghast that Tarquin plans to make her his next companion.

Night Four: Trip and Archer launch in Shuttlepod One, the coating process complete. The pod penetrates the cloaking field around the sphere, though the sensors are damaged. Archer lands on the sphere to let Trip repair the pod. While working, the port thruster ignites; Trip and Archer fire at the shuttle; they conduct their scans and return to the ship. Enterprise heads back to Tarquin's world. Log entry.

Day Five: Archer contacts Tarquin, letting him know Enterprise will arrive soon. Hoshi sees Archer, who tries to persuade Hoshi to stay, but she realizes that he is Tarquin in disguise. In orbit, Enterprise tries to contact Hoshi but the power is drained from all systems. Hoshi threatens the telepathy orb, and Tarquin releases control of Enterprise. Log entry.

Night Five: T'Pol analyzes the data from the scans and discovers that there are at least fifty spheres in the Expanse, maybe more. Tarquin appears to Hoshi one last time, telling her about a base constructing part of the Xindi weapon and giving her the coordinates.

[More details forthcoming]

Episode 59: "The Shipment"

Enterprise has been in the Expanse for three months; takes place about six to seven weeks after "The Xindi".

[More details forthcoming]

Episode 60: "Twilight"

According to startrek.com, the "present day" setting of this episode is October 2153, though the month is not mentioned in the episode itself. Probably late in the month.

Includes an alternate timeline spanning about twelve years into the future.

[More details forthcoming]

Episode 61: "North Star"

Placement TBA.

Episode 62: "Similitude"

Placement TBA.

Episode 63: "Carpenter Street"

Includes time travel to 2004. Might also include time travel from the 31st century.

[More details forthcoming]

Episode 64: "Chosen Realm"

Placement TBA.

Episode 65: "Proving Ground"

Includes December 6, 2153. Additional placement TBA.

Episode 66: "Strategem"

Includes December 12, 2153. Additional placement TBA.

Episode 67: "Harbinger"

Includes December 27, 2153. Spans several days; 2154 begins in the middle of the episode.

2154

Episode 68: "Doctor's Orders"

Early January. Additional placement TBA.

Episode 69: "Hatchery"

Includes January 8, 2154. Additional placement TBA.

Episode 70: "Azati Prime"

Mid-January. Additional placement TBA.

Episode 71: "Damage"

Mid-January. Additional placement TBA.

Episode 72: "The Forgotten"

Late January or early February. Additional placement TBA.

Episode 73: "E²"

Early February. Additional placement TBA.

Episode 74: "The Council"

Early February. Additional placement TBA.

Episode 75: "Countdown"

Includes February 13, 2154. Additional placement TBA.

Episode 76: "Zero Hour"

Includes February 14, 2154; time travel to 2161; time travel to 1944. Additional placement TBA.

2161

Episode 76: "Zero Hour" [time travel]

Original Timeline: The Federation Charter is signed by Humans, Vulcans, Tellarites, and Andorians.

Altered Timeline: Daniels and Archer watch the Federation Charter be signed.

Mid-26th Century

The Federation, which now includes Vulcans, Andorians, Ithenites, Klingons, Humans, Xindi, and other species, defeats the Sphere-Builders in the Battle of Procyon 5, according to Daniels ["The Expanse"].
It is unknown if this will actually happen.