Timeline (RDM)

Dates use the day of the Cylon Holocaust as a baseline. See also Survivor Count, History of the Twelve Colonies.

Ancient History

• -21,354 Years: The epoch of the calendar system used in Adama's dossier.
• -3600 Years: Pythia records her prophecies.
• -2000 Years: The thirteen tribes leave Kobol: twelve for the star system containing the Twelve Colonies, the other for Earth. The Twelve Colonies are first settled. As a result of their exodus, the refugee settlers enter into a new dark age during which much of their past knowledge of history and technology is lost.
• ~2000 Years to -52 Years: Over the next few centuries the Twelve Colonies recover, then thrive, and eventually start competing with each other in various wars and shifting alliances, which had been going on since several hundred years before the Re-Imagined Series begins.

Recent Colonial History

• -64 Years: William Adama born in Qualai, Caprica.
• -55+ Years: Setting for the proposed series Caprica, which is to be set more than 50 years prior to the events of "Battlestar Galactica" and focus on the lives of two families: the Adamas and the Graystones. The Twelve Colonies are at peace and on the verge of a technological breakthrough: the first Cylon.
• -52 Years: Cylon revolt begins the Cylon War. Articles of Colonization signed (Colonial Day, RDM, April 11, 2005).
• -51 Years Colonials suffer a major defeat when the Colonial ship Brenik is lost after a boarding action by Cylon Centurions, which resulted in some of the bloodiest, hand-to-hand fighting of the war. A young Petty Officer Saul Tigh is one of a handful of survivors.
• -50 Years:
  • Battlestar Galactica enters service under Commander Nash.
• c. -41 years: William Adama begins his service in the Colonial Fleet as a Viper pilot, near the end of the Cylon War.
• -40 Years: Armistice between the Colonials and the Cylons ends the Cylon War.
• -34 Years: William Adama resigns from the Colonial Fleet after the Armistice is declared (Hero).
• -20 Years:
  • Last significant Jump recorded on battlestar Galactica's logs.
  • Tom Zarek imprisoned for blowing up a government building on Sagittaron (Bastille Day).
  • William Adama and Saul Tigh first meet (Scattered, podcast).
• -17 Years: William Adama reinlists in the Colonial Fleet at the rank of Major.
• -11 Years: Major William "Husker" Adama assigned to the Battlestar Atlantia. While serving aboard Atlantia he conducts his 1000th landing.
  • Laura Roslin begins her career in politics (Litmus).
• -7 Years: Saul and Ellen Tigh marry. (Kobol's Last Gleaming, Part I, deleted scene)
  • William Adama promoted to Colonel and is assigned to the Battlestar Columbia as XO.
• -5 Years:
  • Laura Roslin's last breast exam prior to her cancer diagnosis (Act of Contrition).
  • Galen Tyrol assigned to Columbia under Col. Adama (Litmus).
• -3 Years: Felix Gaeta assigned to Valkyrie.
  • William Adama is promoted to Commander and assigned to the Battlestar Valkyrie.
  • Saul Tigh is promoted to Colonel and assigned to Valkyrie as Adama's XO.
  • Galen Tyrol assigned to Valkyrie.
• -2 Years:
  • Caprica Six begins residence on Caprica (Downloaded), first encounters Dr. Gaius Baltar (Miniseries).
  • A copy of Sharon Valerii begins serving aboard Galactica (The Farm).
  • Zak Adama dies in a flight school accident. His funeral is Lee and William Adama's last meeting until the miniseries.
  • Lt. Kara Thrace is re-assigned from Flight School to Galactica (Act of Contrition).
• -1 Year: Last time William Adama and Caroline Adama speak.
  • William Adama leads the Battlestar Valkyrie on a recon mission to slip a Stealthstar across the Armistice Line. The mission fails and the Stealth Star's pilot, Daniel Novacek is shot down and captured by the Cylons. (Hero)
  • William Adama, Saul Tigh, Felix Gaeta (and possibly others) are re-assigned to the aging Battlestar Galactica as a result of the failed Stealth Star mission.
• -Several months Caroline Adama gets engaged.
• -3 Weeks: Anastasia Dualla last visits her home.

Events of the Miniseries

• Day 1: Begins with the Cylon attack on Armistice Station and culminates with Galactica's fleet leaving the star system of the Twelve Colonies during the Battle of Ragnar Anchorage.
  • Zero Hour: Cylons destroy the Twelve Colonies. The (so-far-known) only known survivors are a rag-tag fugitive fleet escorted by Galactica; Pegasus, another isolated battlestar; a fleet of 15 civilian FTL-capable ships; and the human resistance on Caprica.

Season 1

• Note: Timeline assumes that the days shown on Caprica with Helo corresponds to the timeline on Galactica. A strong example of this is in the season 1 finale "Kobol's Last Gleaming, Part II", when Starbuck travels from Galactica to Caprica.

"33" through "Hand of God"

• Day 6: Galactica pursued by the Cylons for six days. The ship Olympic Carrier is discovered to be the source of the problem, it is destroyed when nuclear weapons are detected aboard (33).
• Day 7: First new child born on the Rising Star. Pegasus encounters a fleet of 15 civilian ships, including Scylla.
• Day 10: President Roslin makes her first official visit to Galactica. During an unrep procedure, Galactica’s water tanks are destroyed by sabotage from Cylon agent Sharon Valerii and the majority of its water is vented into space. Galactica commences an immediate search of the surrounding star systems for drinkable water and finds an ice moon (Water).
• Day 12: Representatives from the government led by Lee Adama visit the Astral Queen to enlist the aid of its prisoner population to help mine water from the ice moon. They find themselves embroiled in a plot by former terrorist Tom Zarek to capture the Astral Queen and demand a civil ransom from President Roslin. The stand-off ends with one prisoner killed when Colonial Marines storm the ship. Lee Adama brokers a deal with Zarek to turn the ship over to him and to convince Roslin to hold an election in exchange for peace and co-operation with the government (Bastille Day).
• Day 14: An accident on the hangar deck kills 13 pilots. Starbuck is ordered by Adama to train replacements. Starbuck goes missing after a battle with a Cylon recon force. (Act of Contrition).
• Day 15: Adama searches for Starbuck against the recommendation of Col. Tigh and President Roslin. Starbuck survived on the red moon of the ice planet system for over 48 hours before locating the Raider she shot down. She trains herself how to fly it then uses it to return to Galactica (You Can't Go Home Again).
• Day 17: A copy of Aaron Doral sneaks aboard the Galactica, steals several blocks of G-4 and G-4 detonators from a small arms locker then blows himself up near Baltar's lab. An independent tribunal is set up to investigate and focuses its attention on Galen Tyrol and Sharon Valerii. Specialist Socinus is jailed for lying under oath to protect Tryol and Adama overturns the tribunal when he feels it has become a "witch hunt" (Litmus).
• Day 21: First recollection by any of the Rising Star crewmembers of giving Ellen Tigh medical assistance ("about a week" before "Tigh Me Up, Tigh Me Down").
• Day 24: Caprica Valerii and Helo first make love. A copy of Number Six appears aboard the Galactica introducing herself as "Shelly Godfrey" and presents doctored evidence to Commander Adama implicating Dr. Baltar in the attack on the Colonies. When her story is debunked and evidence suggesting she may be a Cylon agent begins to mount she disappears as quickly and mysteriously as she appeared (Six Degrees of Separation).
• Day 25: A copy of Leoben Conoy surfaces on the Gemenon Traveler claiming he has hidden a nuclear device somewhere in the fleet but will not say where. Kara Thrace is brought in to interrogate him and she eventually makes him confess the bomb story was a lie. He is then thrown out an airlock on President Roslin's personal order (Flesh and Bone).
• Day 26: Ellen Tigh resumes consciousness ("a couple of days" before Tigh Me Up, Tigh Me Down).
• Day 28: William Adama travels to the Rising Star and brings Ellen Tigh aboard the Galactica to reunite with Saul. Ellen later spends most of an uncomfortable dinner party with President Roslin grilling Adama on the subject of the then-fictitious Earth. When she is tested by Dr. Baltar's Cylon Detector, Baltar claims her results came back green but then later reveals to Number Six that everyone is going to be greenlit from now on reguardless of what the results say (Tigh Me Up, Tigh Me Down).
• Day 36: With the Fleet running low on Tylium fuel, Adama begins scouting near-by systems for asteroids rich in Tylium ore. One system is found but a heavily fortified Cylon mining outpost is discovered there. Galactica engages the Cylons a battle for the Tylium Asteroid and destroys the mining base. Caprica Valerii begins showing the first signs of pregnancy and suffers morning sickness (The Hand of God).

Colonial Day

• Day 46: Delegates selected for the Quorum of Twelve. Tom Zarek selected to represent Sagittaron. Roslin implores Adama to permit his participation. Valance prepares to smuggle a ceramic stealth gun into the Cloud Nine. Zarek addresses the fleet from the prison ship Astral Queen. Gaius Baltar selected to represent Caprica. Apollo and Starbuck inspect the Cloud Nine.

• Day 47 - Morning: Colonial Day. Delegates arrive on Cloud Nine. Roslin addresses the Quorum. Baltar eyes Playa Palacios. Zarek moves to elect a vice president and is nominated by Marshall Bagott. Motion passes, chair to remain open 72 hours for nominations.

• Day 47 - Afternoon: Roslin asks Wallace Gray to run for the vice presidency. Zarek expounds on his reform agenda. Valance scuffles with Apollo and Starbuck and is remanded in custody. Helo and Caprica Valerii arrive at a spaceport in the vicinity of Delphi.

• Day 47 - Evening: Starbuck and Apollo interrogate Valance to no effect.

• Day 48 - Morning: Grey addresses the Quorum. Safiya Sanne changes Picon's vote to Zarek, bringing his total to 5 of 12.

• Day 48 - Afternoon: Zarek serves Ellen Tigh a drink and inquires after the whereabouts of Valance. Baltar interviewed by James McManus. Valance found dead. Tigh, Apollo and Starbuck consult with Roslin on security.

• Day 48 - Evening: Roslin travels to Cloud Nine and asks Grey to drop out of the race and recruits Baltar to replace him, interrupting his "exclusive" with Palacios. Apollo and Starbuck flirt in the bunk on Galactica.

• Day 49 - Morning: Baltar elected Vice President, with Roslin casting the tie-breaking vote.

• Day 49 - Evening: Victory party for Baltar. Roslin dances with Adama, Ellen with Saul Tigh, Billy with Dualla, Starbuck with Apollo and Baltar.

• Day 49 - Night: Helo and Caprica Valerii infiltrate the spaceport. Helo discovers Valerii is a Cylon and flees.

Note: Roslin states that the chair will remain open for nominations for 72 hours on the morning of Day 47, but the next episode clearly takes place the day after the victory party, and is stated to take place on Day 50.

Kobol's Last Gleaming, Part I

• Day 50 - Early Morning: Apollo and Adama spar. Baltar and Starbuck have sex. Caprica Valerii catches up with Helo at Delphi, and he shoots her. Galactica Boomer contemplates suicide. Cottle examines Roslin and gives her "six months, at the outside".

• Day 50 - Morning: Starbuck and an (already) drunken Baltar exchange innuendos over the officer's card game.

• Day 50 - Afternoon: Roslin briefs Baltar on her economic agenda. Six warns him that "it's not safe to remain on Galactica". Galactica Boomer and Crashdown stumble upon Kobol. Helo holds Caprica Valerii at gunpoint. Apollo and Starbuck exchange blows.

• Day 50 - Evening: Roslin examines an orbital photograph of Kobol and has a vision of the City of the Gods. Adama decides to send an expedition, which Baltar demands to accompany. Galactica Boomer shoots herself on Baltar's advice. In private, Roslin unsuccessfully petitions Commander Adama to send the Cylon Raider after the Arrow of Apollo on Caprica.

• Day 50 - Night: Battle of Kobol begins. Scout party ambushed by a Cylon Basestar at Kobol. Starbuck devises a plan to deliver a nuclear weapon to the basestar using the captured Raider and Cylon transponder. Roslin convinces her to purloin the Raider and take it to Caprica instead.

Kobol's Last Gleaming, Part II

• Day 51 - Early Morning: Survivors of Raptor 1 escape the wreck. Baltar passes out. Adama terminates Roslin's presidency. Apollo and Tigh plan an assault on Colonial One. Adama dispatches the wounded Boomer to take out the basestar. Caprica Valerii leads Helo to Delphi Museum of the Colonies.

• Day 51 - Morning: Starbuck arrives at Caprica, retrieves the Arrow of Apollo, kills a copy of Six and meets up with Helo. Galactica's marines board Colonial One. Apollo mutinies, Roslin stands down. Baltar has a vision of the shape of things to come. Galactica Boomer confronts other Valerii copies on the basestar. She returns from her mission and shoots Commander Adama.

Season 2.0

Note: Season 2 dates are rough guesses at best, and are complicated by the season two timeline discontinuity. Dates for the first half of the season are based on the last dates given at the end of season one.

"Scattered" through "The Farm"

• Scattered
• Day 51 - Morning: A Cylon Basestar ambushes the fleet, which jumps to an emergency rendezvous point. Galactica jumps to different coordinates and is forced to backtrack. Galactica holds off basestar and returns to bulk of the Fleet.
• Valley of Darkness
• Day 51 - Morning: Galactica is partially disabled by a Cylon virus while a Cylon Centurion boarding party attempts to commandeer the ship.
• Fragged
• Day 51 - Afternoon: Crashdown is shot by Gaius Baltar on Kobol after threatening to shoot Cally.
• Resistance
• Day 52: Tigh interrogates Tyrol and imprisons him with Sharon Valerii (Galactica copy) (Resistance).
• Day 53 - Morning: Cally blackmails Baltar into running his Cylon test on Tyrol. Baltar notes to Tigh that he should assume Roslin's duties; he invites Baltar to join her in the brig. Aturian stops refining Tylium in protest of Martial law. Apollo briefs pilots in the ready room. Dualla checks out his ass. On Caprica, Starbuck and Helo meet Samuel Anders's resistance movement.
• Day 53 - Afternoon: Tigh deploys troops to vessels refusing to supply Galactica. The Gideon Massacre takes place. Roslin is chagrined. Apollo initiates his escape plan.
• Day 53 - Evening: Saul and Ellen Tigh argue and have sex. Baltar poisons Tyrol and interrogates Boomer. Starbuck and Helo arrive at the Resistance HQ with Anders.
• Day 54 - Morning: Apollo delivers briefing, orchestrates Roslin's escape. The deck gang begin construction of a new brig cell for Cylon agents.
• Day 54 - Afternoon: Apollo & co. disembark at the Cloud Nine and link up with Tom Zarek. Starbuck and Anders flirt.
• Day 54 - Evening: Commander Adama wakes up. Cally kills Galactica-Boomer.
• The Farm
• Day 61: Laura Roslin & co. take refuge on Kimba Huta. William Adama resumes command of Galactica. Kara Thrace is captured by the Cylons and taken to a Cylon Farm.
• Day 62: Kara is later rescued by Samuel Anders's resistance and Caprica Valerii. Thrace, Valerii and Karl Agathon depart Caprica in a Heavy Raider captured by Valerii earlier in the rescue attempt but promise to return to rescue Anders and his men. The doctor who tended to Thrace at the Farm, is revealed to be a Cylon agent (The Farm).

Home, Part I

• Day 62 - Morning: Kara Thrace's captured Heavy Raider jumps into orbit around Kobol. Tom Zarek attempts to have it shot down because it's not the same Raider that Thrace departed in. Thrace lands her Heavy Raider aboard the Astral Queen and is reunited with President Roslin and Lee Adama. Lee learns that in addtion to Karl Agathon, Thrace brought back the Caprican copy of Sharon Valerii, whereupon Lee pulls a gun on Sharon. After defusing the situation with words, Roslin orders Valerii thrown out the airlock, but relents and has her thrown into the brig instead, after hearing both Thrace and Agathon's protest. Commander Adama promotes Captain George Birch to be the new Galactica CAG.

• Day 62 - Afternoon: Commander Adama holds a press conference regarding the escape of President Roslin from his custody and the ensuing martial law. Adama adjourns the press conference when the questions become increasingly pointed.

• Day 63 - Morning: Cpt. Birch on his first mission as CAG is responsible for an accident that nearly kills Kat. Zarek and his trusted lieutenant Meier plot to overthrow Roslin and take command of the fleet.

• Day 63 - Afternoon: Cpt. Birch oversees his second flight mishap as CAG when two ships he's supposed to be guiding collide with one another during a routine refueling operation.

• Day 64 - Morning: Roslin's party, made up of Thrace, Cpt. Adama, Elosha, Zarek, Meier, Agathon, Boomer, two Zarek red-shirts, two Roslin red-shirts and Roslin herself land on Kobol. Using Valerii as their guide they set out in search of the Tomb of Athena.

• Day 64 - Afternoon: The party is ambushed by Cylon Centurions after Elosha accidentally trips a "bouncing betty" land mine and it blows up in her face, killing her. The surviving party is saved when Valerii uses an RPG launcher to destroy the last remaining Centurion.

• Day 64 - Evening: Adama makes the decision to put the fleet back together after a long and heartfelt talk with Dee.

Home, Part II

• Day ??: - Raptor 1 lands on Kobol with William Adama and his contingent. Tomb of Athena found.
• Day ??: - Roslin reestablished as lawful President; martial law ends. Fleet reunification.

Final Cut

• Day ?? D'anna Biers produces a documentary aboard the Galactica about the "Gideon massacre." It is a generally positive documentary broadcast to the fleet. Unknown to the fleet, it is also disseminated to the Cylons, updating them with the status of the Colonial fleet.

Flight of the Phoenix

• Day 84 - Cally is released from the brig; a welcome back party is thrown for her by the deck crew.
• Day ?? - Laura Roslin is given a few weeks, a month at the most to live.
• Day ?? - Chief Tyrol begins construction of the Blackbird prototype stealth fighter.
• Day ?? - Galactica routs hundreds of Cylon fighters without a casualty while dispatching a Logic bomb from their ship computers.
• Day ?? - The Blackbird prototype stealth fighter is completed by Chief Tyrol and a team of Galactica crewmembers. Lt. Thrace flies it on its first test flight, quickly proving its value as a stealth craft.

Pegasus

• Day ?? - Galactica encounters battlestar Pegasus. Admiral Helena Cain assumes fleet command.
• Day ??- Tyrol accidentally kills Pegasus Lieutenant Thorne and is arrested with Helo.
• Day ?? - A standoff between the two battlestars begins over the treatment of the arrested Galactica crew.

Season two timeline discontinuity

Main article: Season two timeline discontinuity

Based on various evidence, the end of "Resistance" can be very firmly dated to Day 54. This puts Cally's release at Day 84, and in turn means that as of "Flight of the Phoenix", Roslin was not expected to live past day 114. Corroborating this, Sharon Valerii does not appear visibly pregnant in "Pegasus".

However, in the following episode, Admiral Cain states offhandedly that it has been about six months since the fall of the colonies. This is further corroborated in "Epiphanies", which we learn takes place 189 days after the holocaust (a full 75 days longer than Roslin's most favorable prognosis). Additionally, Valerii now appears to be well into her second trimester, and elections have been put off by 75 days from their first-season projections.

There is apparently no way to reconcile this discrepancy. Even under the most liberal assumptions, the first half of the second season timeline cannot accommodate more than about three additional days.

Consequently, there is a 75-day discontinuity between the fist and second halves of season two. The second half of the season is dated from the firm dates given in "Resurrection Ship, Part I" and "Epiphanies", but be aware that dates throughout the remainder of season 2 are likely to contradict those from earlier in the series.

Season 2.5

Dates not specific to episodes

• c. Day ~140: Cylon Raiders attack the freighter Greenleaf. Ray Abinell is killed in the attack (Sacrifice).

Resurrection Ship, Part I

• Day ~175 - The standoff between the two battlestars ends in an uneasy truce, and a tense summit aboard Colonial One, after Lt. Thrace returns from an unauthorized surveillance mission to the Cylon fleet, where she gains critical evidence on a Cylon ship. Dr. Baltar is able to determine from Gina that this is the Resurrection Ship that cylons need to resurrect so far from the Cylon homeworld.

Resurrection Ship, Part II

• Day ~177 - The Battlestars Galactica and Pegasus together engage the Cylon fleet in the Battle of the Resurrection Ship, where they achieve an overwhelming victory with relatively light casualties, destroying not only the Resurrection Ship, but at least one other Cylon base star. The Blackbird is destroyed in the battle, although Lee Adama manages to eject successfully. At least one Raptor is also lost in the battle. Admiral Cain is killed by Gina, after Baltar helps her escape captivity. He then proceeds to hide her in the fleet.

Epiphanies

• Day 189 - President Roslin near death; orders death of Cylon fetus. A Cylon peace movement begins to pose as a threat to the Fleet. The Cylon fetus is eventually spared, when Dr. Baltar determines how to use Cylon fetal stem cells to treat Roslin's cancer. Dr. Baltar smuggles the nuclear weapon that he was provided with for work on his Cylon detector to the Cylon peace movement aboard Cloud Nine.

Black Market

• Day ??? - Commander Fisk is murdered aboard the Battlestar Pegasus. Lee Adama begins an investigation into the matter.
• Day ??? - Lee Adama kills Phelan, leader of the Black Market crime syndicate.
• Day ??? - Lee Adama is debriefed on the entire incident regarding the murder of Fisk and the Black Market.

Scar

• Day ??? - After 29 days in an asteroid field (putting us at Day 218 or later), the Majahual's mining operation has produced enough raw materials for the construction of two new Viper squadrons using the fabrication facilities aboard the Battlestar Pegasus. Attacks on the operation continue by the ace Cylon raider known as Scar, making it the source of a heated competition between Lt. Katraine and Cpt. Thrace.

Sacrifice

• c. Day 210 - Sesha Abinell, her brother-in-law Vinson and two accomplicies lay siege to bar onboard Cloud 9, taking the guests hostage, and sealing the area off from the rest of the ship. Abinell's husband was killed aboard the Greenleaf when the Cylons attacked it ten weeks ago, and she decides to exact vengeance. Lee Adama is wounded as a result of a failed rescue attempt by Kara Thrace. Sesha, Vinson, Chu, Page, two marines and Billy Keikeya are killed.

Backdated from "The Captain's Hand" and "Lay Down Your Burdens, Part I"

The Captain's Hand

• c. Day 236 - Kara Thrace assigned to Pegasus as flight instructor.
• Day ?? - Almost one month after the events of "Sacrifice", Lee Adama has been promoted to Major and temporarily assigned to Pegasus. Rya Kibby arrives on Galactica seeking a clandestine abortion from Dr. Cottle and requests asylum.
• c. Day 240 - Pegasus Commander Barry Garner dies during the Battle of the Binary Star System. Adama is promoted to Commander and given command of Pegasus, with Thrace replacing him as CAG of Galactica. In response to heavy lobbying from Gemenon delegate Sarah Porter over the Kibby incident, Roslin places a moratorium on abortion. In protest, Vice President Gaius Baltar announces his candidacy for president in the upcoming election.

Backdated from "Lay Down Your Burdens, Part I".

Downloaded

• Day 270 (Zero Hour + 9 months) - Hera born, approximately one month premature. She survives, but the military and civilian leadership arrange for its death to be faked in order to throw off Cylon infiltrators such as Gina and D'anna Biers. Galen Tyrol accompanies Karl Agathon as he scatters what he believes to be his daughter's ashes from a Raptor. Hera is adopted by Maya, who will later rename the child "Isis".
• Caprica-Six and Boomer, both reincarnated on Caprica shortly after their respective deaths, are introduced by a copy of Number Three. The three, along with Samuel Anders, are caught in an explosion set by members of the Caprica Resistance. Caprica-Six kills Three and releases Anders; Caprica-Six and Boomer resolve to persuade the Cylons to adopt a new approach in dealing with the Colonials.

The originally aired version of this episode contained an error which placed the previous episode "Resistance" "10 weeks before" this one. This was corrected for the DVD release and subsequent airings.

Lay Down Your Burdens, Part I

• c. Day 256 - Galen Tyrol begins a series of recurring suicidal nightmares.
• c. Day 269 - Presidential debates begin. Kara Thrace, Felix Gaeta and Lee Adama brief pilots on Caprica SAR mission on Pegasus. Tyrol attacks Cally after being woken from a nightmare.
• c. Day 270 - Media reports on first debates. SAR team departs; Margaret "Racetrack" Edmondson and crew accidentally discover a habitable planet and return to the Fleet. Tyrol begins counseling with Brother Cavil.
• c. Day 280 - Final presidential debate. SAR team arrives at Caprica and meets with Samuel Anders's Resistance.
• c. Day 283 - Polls open (projected).

Tom Zarek states that the fleet has been "cooped up in metal boxes for nine months" the morning after the debates. This date is roughly taken as Day 270, with an implied give-or-take of a couple weeks. The surrounding events noted above can, however, be placed relative to this point with a good degree of certainty based on episode dialogue.

Lay Down Your Burdens, Part II

• Day 281 - Thrace's SAR team and Anders' resistance are pinned down by a Cylon sneak attack. They are under siege for 18 hours, the next morning they awake to find the Cylons have completely abandoned Caprica.
• Day 282 - The SAR mission returns to Galactica, Cavil is discovered to be a Cylon when a second copy steps off a Raptor.
• Day 283 - The polls open, Baltar wins. Tory Foster conspires with Col. Tigh and Dualla to rig the vote results to keep Roslin in power. Their plan is found out by Lt. Gaeta and Admiral Adama convinces Roslin to let the people's will prevail and let Baltar become president.
• Day 284 - Baltar is inaugurated President. A distraught and emotionally bankrupt Gina detonates the nuclear warhead given to her by Baltar and destroys Cloud 9 and several other near-by ships.
• c. Day 285 - Adama visits President Baltar aboard Colonial One and questions him about the Cloud 9 disaster. A defiant Baltar rebukes all his questions and accusations.
• Between c. Day 285 and c. Day 315
  • Galactica’s and Pegasus’s crews begin to resign and settle on New Caprica.
  • Anastasia Dualla is promoted to Lieutenant (j.g.) and requests to transfer to Pegasus as Lee Adama's XO.
  • Galen Tyrol and Cally Henderson marry, and Cally becomes pregnant.
  • Felix Gaeta retires from military duty and becomes President Baltar's aide.
  • The fleet begins the process of settling on New Caprica.
• c. Day 420 Four months or 120 days after settlement begins - The flashback sequences from Unfinished Business concerning the ground breaking of the settlement of New Caprica are set at this time. They are noted on screen as having occurred 17 months prior to the events of that episode, or 8 months prior to New Caprica's occupation by the Cylons.
  • Dualla's transfer to Pegasus is approved.
  • Galen and Cally Tyrol retire from Galactica and settle on New Caprica.
  • Gaius Baltar and his administration celebrate the groundbreaking of the settlement on New Caprica. An all-night dance and celebration is held.
• c. Day 421 - Kara Thrace and Lee Adama have sex for the first time and declare they love each other. When Adama awakens the next morning he discover Kara has run off and married Samuel Anders. Because of this Kara and Lee stop speaking to one another. Lee proposes to Dualla. (Unfinished Business)
• Between c. Day 421 and c. Day 660
  • Lee Adama and Anastasia Dualla marry and remain onPegasus.
  • Caprica-Sharon and Karl Agathon marry and remain on Galactica.
  • Lee takes to over-eating to deal with his emotional trouble over Kara's betrayal. He gains significant weight between now and when the Cylons arrive.
  • Kara Thrace and Saul Tigh appear to have mend fences.
  • After settling on New Caprica, Tyrol becomes a union head.
  • James "Jammer" Lyman and Tucker "Duck" Clellan retire and settle on New Caprica.
  • Former President Laura Roslin becomes a school teacher on New Caprica. Maya, Hera's adoptive mother, is her teacher's assistant.
  • Samuel Anders contracts pneumonia.
• c. Day 660 (360th day since settlement; assuming settlement day was day 300)
  • Admiral Adama discharges Saul Tigh from his duties aboard Galactica. He and Ellen settle on New Caprica.
  • Galen and Cally Tyrol organize a general labor strike in protest of Baltar's poor leadership as President.
  • Kara attempts to persuade Lee Adama to relinquish medical supplies for her husband.
  • Cylon forces occupy New Caprica.

Battlestar Galactica: The Resistance

• Between Day 660 and c. 727
  • Nicholas Tyrol is born to Cally and Galen Tyrol.
  • Kara Thrace is forced into a marriage-type arrangement with Leoben Conoy, whom she kills regularly.

Note: It is unclear when Kara was taken, but finding her was clearly Conoy's first order of business.

• • A resistance movement is established. Its leaders are Saul Tigh, Galen Tyrol and Samuel Anders. Other members include Jean Barolay and James "Jammer" Lyman.

Note: Samuel Anders is clearly a resistance leader by the episode "Occupation", but he is not seen during "Battlestar Galactica: The Resistance". His character background suggests that he would have been a founder or early member of the resistance, but we must also presume it took him at least some time to recover from his illness.

• c. Day 727 (427th day since settlement, 67th day of occupation) - Evening: Tyrol and Tigh have been organizing a budding resistance movement, but they find recruiting new soldiers is becoming dangerous and difficult. New Capricans are shot on the spot if weapons are found in their tents. The Cylons are also setting up a human police force to take over for the Cylon Centurions, who are doing most of the police work.

• Day 728?: - Due to personal reasons Duck has refused to work with the resistance, much to the ire of Tyrol. A ritual for protection of the crops from blight is said in the temple. As the priestess leaves, Jean Barolay abruptly shifts the conversation to the movement of the weapons stash into the temple; Jammer strongly objects, but he is overruled by Tigh. Later in the day, Duck tells Nora his decision about joining the resistance. She is pleased that he refused Tyrol. During the night, Tigh, Tyrol, Jammer, and Barolay move the weapons into the temple disguising them.

• Day 729?: - Nora wakes Duck saying he will be late to work. She tries to convince him to go to temple after work with her. He refuses, saying he talks to the gods in his own way. Later in the day, Cally and Nora are visiting the temple. A Number Five announces that he will enter the temple with several Cylon Centurions. Several men try to block them, but the Cylons force their way in and gunfire can be seen and heard. While trying to run away Cally falls to the ground protecting her baby, but Nora is shot and killed when she tries to retrieve her bag. Afterwards Tyrol, Cally and Jammer return Nora's bag to Duck, and inform him about the death of Nora. Duck is physically sickened by the news. He becomes angry and demands to know if there were weapons in the temple. Tyrol tries to avoid the question, but Duck doesn't relent until Tyrol admits the truth. At that point, Duck orders them out of his tent.

• Day 730?: - Tigh, Barolay, and Jammer discuss the effects of the attack, which has brought about positive effects for the resistance. The general population has started to side with the resistance and 1,000 people protested outside Colonial One over the attack on the temple. Since the attack, recruitment has become easier with 150 Colonials signing up. Tigh thinks that this was a good deal because the loss of a few weapons was worth the propaganda victory. However, Jammer is upset that the loss of 10 lives was not worth it. Tigh comes down hard on Jammer, stating that people die in war, nice people, and the resistance has no room for crybabies.

• Day 73X?: - Tyrol and Tigh discuss the arrest of Jammer by the Cylons. Tyrol insists that Jammer won't reveal the work of the resistance. Jammer is imprisoned in a Cylon detention center and is visited by a Number Five. Number Five proposes to Jammer that the massacre at the temple may have been planned by the Resistance. Number Five offers Jammer the chance to stop further bloodshed by informing him of potentially life-threatening actions by the Resistance. Jammer balks at becoming a traitor to the Resistance, but accepts a key card which will let him enter the detention center to report any secret plans of the Resistance.

Season 3.0

Occupation

• Between Day 73X and 794
  • Saul Tigh is captured by the Cylons and detained. One of his eyes is literally ripped out by the Cylons.
  • Jammer and Duck enlist with the New Caprica Police.

• c. Day 794 (494th day since settlement, 134th day of occupation): Kara Thrace kills the fifth incarnation of the Leoben who abducted her and Colonel Tigh is released from the detention centre.
• c. Day 795 - morning: Duck commits to the suicide mission, Gaeta secretly provides the jamming frequencies, communication is established with Racetrack's Raptor, and Duck executes the suicide bombing.

Precipice

• c. Day 795 - evening: Arguably, the introductory scene with Roslin in a cell takes place during the evening on the same day that the bombing occurred. An announcment that a curfew is in effect suggests that the time is between 19:00 and 22:00, since that is customarily when militaries impose cufews. The NCP raid the tents of and capture numerous suspected resistance members.
• c. Day 796 - morning & midday: Chief Tyrol talks to Gaeta about Cally, Leoben introduces Kasey, the suicide woman damages the power substation, the Cylon conference forces Baltar to sign the execution order, Ellen Tigh steals the map, Roslin and others are detained, the trucks are driven to the Pergamus Flats, and Sharon Agathon's contingent lands.

Exodus, Part I

• c. Day 796 - midday & evening: Tyrol's group ambush the firing squad, the marines save Agathon and the resistance group, a Number Three dreams of Hera, and Caprica Six talks to Baltar about her feelings.
• c. Day 797: Starbuck apologizes to Kasey and the Number Three visits the Oracle. The resistance's final planning and coordination is not shown but must take the entire day--similarly, what are the Cylons doing? Certainly they must be doing something the day after their execution fails and all the resistance members are free?--the next scene on New Caprica after the Oracle's scene is the Number Three talking to Dr. Cottle in the evening.
• c. Day 797 - morning & midday: The Cavil killed by Tyrol's ambush returns to Colonial One, introducing the question of whether it takes two days to download. Anders talks with Roslin about Hera's protection, Agathon infiltrates into the facility and obtains the launch keys. Ellen Tigh is exposed. Admiral Adama gives "the speech."

Exodus, Part II

• c. Day 798 - afternoon: Ellen Tigh voices her final oratory, and the resistance's bombs initiate the Battle of New Caprica, soon joined by the battlestars. Galactica afterward conducts a link-up with other ships, involving many emotional reunions, and Admiral Adama finally shaves.

Collaborators

• c. Day 800 (Day 3 of the Second Exodus) - James "Jammer" Lyman, and 12 others before him are executed by The Circle for being Cylon collaborators.
  • Gaius Baltar awakens aboard a Cylon basestar for the first time after fleeing New Caprica.
  • President Tom Zarek meets with Laura Roslin aboard Colonial One, Zarek promises to name Roslin as his Vice President then resign.
  • Samuel Anders resigns from The Circle citing personal issues, his wife Kara Thrace replaces him.
  • Felix Gaeta is tried and convicted by The Circle, he is abducted and taken to Galactica’s flight pod for execution but is spared by Col. Tigh and Chief Tyrol.
  • President Roslin abolishes The Circle and immediately pardons all those suspected of collaboration.

• Between Collaborators and Torn -
  • Lee is demoted back to Major, and is once again the Galactica CAG.
  • Kat is demoted from CAG to leader of Blue Squadron.
  • Helo keeps the XO slot aboard Galactica.
  • Gaeta appears to become the scientific advisor.
  • Cally Tyrol is back on the flight deck alongside her husband.

Torn

• c. Day 850
  • Galactica’s air group runs exercises with the Viper pilots.
  • Lee Adama has lost all of the weight he put on in the year between the colonization of New Caprica and the Second Exodus.
  • Felix Gaeta meets with President Roslin and Admiral Adama to discuss Baltar's research on the road to Earth. Gaeta's research shows they are coming close to a way point described in the Book of Pythia, the Lion's Head Nebula.
  • Baltar, aboard the Cylon basestar, has hallucinations. Caprica-Six and Three begin inquiring about the location of Earth and debating Baltar's usefulness.
  • Hot Dog christens Lieutenant Sharon Agathon with the callsign "Athena".
  • They Cylons discover the basestar they sent to investigate the Lion's Head Nebula has been infected by a virus from an ancient probe they brought on board. Baltar, looking to prove his worth to the Cylons, offers to board an infected basestar and collect scientific information.
  • Kara Thrace and Saul Tigh sow dissent between the survivors of New Caprica and the crew that stayed behind on Galactica. When word reaches Admiral Adama about their conduct he confronts them and puts a stop to it.
  • Athena and Racetrack jump into range of the Lion's Head Nebula, and quickly realize they have jumped right next to the dying basestar.
  • Baltar returns to the basestar and discusses what he saw with Caprica-Six and Three. He leaves out the part about the 13th Colony probe, but his omission is uncovered when Caprica sorts through the images he brought back and spots the probe.

A Measure of Salvation

• c. Day 851
  • A boarding party comprising of Raptors and Vipers investigate the derelict basestar, and find that all but a few Cylons aboard have died.
  • The boarding party and some Cylon prisoners are en route back to Galactica when the basestar self-destructs.
  • Galactica quarantines the boarding party and prisoners while Dr. Cottle finds out if the virus affects humans. His investigation identifies a virus that can be treated, but not cured for Cylons. Lee Adama suggests a plan to eliminate the entire Cylon race by executing their prisoners in range of a Resurrection Ship.
• c. Day 852
  • Galactica jumps to a Cylon supply line, and launches Vipers and Raptors to attract the Cylon fleet. In the midst of this, Helo initiates thwarts the mission, unplugging an environmental control box.
  • Aboard the basestar, Baltar is interrogated by Three and Caprica-Six.
  • This storyline picks up immediately after prior episode.

Hero

• c. Day 935
  • President Roslin and Tory Foster draw up plans to honor Admiral Adama for his 45 years of service to the Colonial Fleet.
  • Number Three begins experiencing strange visions. When she awakens she is in bed with both Caprica-Six and Gaius Baltar.
  • Galactica detects three Raiders inbound, one of them is damaged and the other two are giving chase and firing upon it. The two chasing it are quickly destroyed, and Adama orders Kat and Starbuck to escort the third to Galactica after hearing a familiar human voice and callsign: Bulldog. In the hangar bay, Adama and a security detail meet the man who stumbles out of the Raider: Daniel Novacek.
  • Novacek is examined by Dr. Cottle and cleared of being a Cylon. President Roslin meets with Admiral Adama and Lt. Novacek and learns that Novacek was one of Adama's pilots who was captured by the Cylons after being shot down on a mission into Cylon territory that went bad.
  • Adama confesses to Roslin that he was responsible for shooting Novacek down and was possibly responsible for attack on the Colonies because of the mission.
• c. Day 936
  • Novacek runs into Saul Tigh who lets it slip that Adama was responsible for shooting down Novacek. Enraged, Novacek confronts Adama and tries to kill him but Tigh steps in saves Adama's life.
• c. Day 937
  • Number Three programs a Centurion to execute her in order to experience another vision. Before downloading she experiences a vision of the Opera House on Kobol and sees five figures in white robes on the stage.
  • Adama submits his resignation to Roslin, she refuses to accept it and insists he attend the ceremony to honor him with a medal.
• c. Day 938
  • After sending Novacek off to a berthing on another ship with a uniform, Tigh and Adama sit down for a drink in the admiral's quarters and discuss what happened to Ellen on New Caprica.

Unfinished Business

• c. Day 950 - The Galactica crew work out their aggressions in the boxing tournament on the hanger deck nicknamed the "dace". Admiral Adama resolves to begin treating his crew less like family and more like soldiers after he fights and loses to Chief Tyrol (although it is probable that he threw the fight). Kara Thrace and Lee Adama finally work out the problems in their relationship by fighting each other in the ring. They finish the match in an embrace and their spouses, Samuel Anders and Anastasia Dualla, leave the deck in disgust.

The Passage

(There are no clear markers for the amount of time between the previous episode and this one. Given that Doc Cottle estimates that the Fleet has enough food for seven to ten days, and that they have already tried generating emergency rations, which also were contaminated, it has probably been at least a week since the events of "Unfinished Business." The dates here use two weeks, on very little basis.)

• c. Day 964 - Sharon Agathon conducts her recon mission, the Fleet flies through the star cluster, and Kat dies of radiation sickness.

The Eye of Jupiter

• c. Day 978 (Resupply mission day 14) - Cylons arrive on the same day that Tyrol finds the Temple of Five.

Future Events

No current future events at this time.

Past Predictions

The following is a list of predictions that were made based off information from past episodes during the first run of the series. These predictions have since become obsolete or the events have been addressed in light of events from episodes aired after said predictions were made. They are kept here as a reference.

• Day 50 + 6 Months (c. Day 230): Roslin's maximum life expectancy as of Day 50 (Kobol's Last Gleaming, Part I).
• Day 86 + 1 month (c. Day 116): Roslin's maximum life expectancy as of Day 86 (Flight of the Phoenix)
  • Roslin's cancer is cured by fetal blood from Sharon's then-unborn child, Hera (Epiphanies).
• Day 54 + 3 months (c. Day 144): Samuel Anders's Caprica Resistance's anti-radiation med supply projected to run out (Resistance).
  • Anders' group survives in "Downloaded", c. Day 270. They could have simply found more stockpiles of anti-radiation meds in the intervening time period.
• Day 12 + 7 Months (c. Day 222): Elections due for President of the Twelve Colonies (Bastille Day).
  • The elections eventually come, about two months late, in "Lay Down Your Burdens, Part II".
• Day 24 + 9 Months (c. Day 294): "Caprica" Sharon Valerii's daughter born. (see Notes below)
  • Hera, daughter of Helo and "Caprica" Sharon Valerii is born premature c. Day 270 (Downloaded).
• Day 36 + 3 years (c. Day 1131): Fleet runs out of tylium fuel that was resupplied from the Cylon asteroid mine; assuming that no other sources have been found before this date. (The Hand of God)
  • We may presume that the Fleet's use of Tylium was essentially halted during the 17+ month stay on New Caprica.
• Day 260 (approx) + 18 years (c. Day 6,830) Time at which, if the Survivor count keeps up its current rate of decline and never increases, the human race will simply go extinct, according to Baltar's estimate in "The Captain's Hand".
  • Due to the destruction of Cloud 9 and surrounding ships in "Lay Down Your Burdens, Part II", and subsequent casualties during the Battle of New Caprica (Exodus, Part II), this figure must be drastically revised.

Analysis of Colonial Dates

In "Hero", William Adama's dossier can be clearly seen. While this document is fairly accurate in terms of Adama's personal history, the dating scheme used in the document seems to be flawed, particularly in lieu of previously established methods of timekeeping demonstrated in the series.

Here are a list of dates from Adama's past that the dossier contains:

H5/21290 Birth of William Adama

D6/21311 First commission, Battlestar Galactica, fighter squadron

E4/21312 Commendation for shooting down Cylon fighter in first combat mission.

D5/21314 Mustered out of service post-armistice

R6/21317 Served as Deck Hand in merchant fleet and as common […] aboard inter-colony tramp freighters

D1/21331 Recomissioned to Fleet

D6/21337 Major: Battlestar Atlantia

R8/21341 Executive Officer: Battlestar Columbia

C2/21345 Commander: Battlestar Valkyrie

C2/21348 Commander: Battlestar Galactica

This provides some interesting information. The fields in the format X#/##### appear to be dates, with the five-digit string following the solidus apparently corresponding to the year.

The following can be deduced from this document:

• This episode marks the 45th anniversary of Adama's commissioning, which puts it in the year 21356, and makes Adama 66 years old.
• Adama spent three years in between being mustered out and finding a job on a tramp freighter. We may speculate that it was during this time that his relationship with first wife Caroline deteriorated.
• Adama spent a total of 14 years serving in the merchant fleet.
• Adama met Tigh roughly 30 years ago (Torn). That would be 21326, which correctly puts it in the middle of Adama's merchant fleet service.
• Adama was a major by the time he arranged for Tigh to be reinstated in the fleet (Scattered), which means that at least six years passed in between Adama's recomissioning and Tigh's.
• Ronald Moore stated in his podcast for "Scattered" that the flashback scenes in that episode took place 20 years before that episode, or in 21334. In fact, they appear to span at least an eleven-year period between 21326 (Adama and Tigh's first meeting) to 21337 (Adama's promotion to Major).
• The first Colonial Day, marking the unification of the Colonies, was probably in 21302. The one celebrated in "Colonial Day" was the 52nd, and it is now two years later.
• Galactica herself is at least 45 years old. Other battlestar's minimum ages prior to the Fall: Atlantia at least 13, Columbia at least 11, and Valkyrie at least 8.

Additionally, an error occurs in "Hero". Dialogue from this episode claims that Adama served on Valkyrie one year prior to the Fall of the Twelve Colonies, putting the date of Lt. Daniel "Bulldog" Novacek's capture at 21352-53. However, Adama's command of Valkryie ended in 21348, which means that Adama commanded Galactica for eight years. It has already been established in dialogue from the Miniseries, "Act of Contrition", and "The Farm".

Inference about dating structure

If the five-digit string following the solidus is in fact the year, as seems inescapable based on the above, the letter-digit sequence before it must indicate the position in the year. There are 260 unique letter-digit sequences of that format, which may indicate a shorter year in the Colonial calendar, essentially a year of twenty-six ten-day weeks. However, what has been revealed about Colonial timekeeping is too incomplete to draw any conclusions.

However, if the above is to be inferred, a striking inaccuracy occurs because of this service record. Prior episodes have firmly established that the Colonial year is analogous to one Earth year of 365 days. In "Tigh Me Up, Tigh Me Down", the Cylon detector takes 11 hours to thoroughly test each blood sample. As there are 47,905 tests (526,955 hours) this will take him 21,956 days, which Six then computes will take approximately 60 years, the same as it would here. The dating further established in "Lay Down Your Burdens, Part II", "Battlestar Galactica: The Resistance", and "Occupation" also support this comparison.

It is astonishing to learn that the Colonials have -- or believe they have -- over 21,000 years of recorded history. By comparison, Pythia was said to have recorded her prophecies 3,600 years ago (The Hand of God) and the Great Exodus from Kobol took place just 2,000 years ago. On Earth, Human civilization is only about 6,000 years old.

Further contradictions

Adama's resignation letter at the end of the episode appears to be dated in an entirely different format. It's difficult to read clearly, but it appears to be dated "27/89/9923".

In addition, the execution order written by the Cylon Occupation Authority and signed by then-President Gaius Baltar is dated "this second day of 3454-91" (Occupation).

Given this, it is extremely likely that little thought was given to the Colonial calendar dating scheme to date.

Notes

• The above day listings use a simplistic calendar system with 30 day months and no leap years. The colonial calendar may be more sophisticated.
• The date of Valerii and Agathon's child is speculated from the events in Season 1 and during the events of "Resurrection Ship, Part I", assuming that the Cylon agents share the same gestation period that humans do, and that the birth of their hybrid daughter is not premature. It is later confirmed that Hera's birth occured on Day 270.
• Later episodes in "Season 2.5" such as "Resurrection Ship, Part I" and "Epiphanies" state clearly that "Pegasus" and the episodes immediately following it take place six months after the Cylon Attack. Ron D. Moore did state that it took Tyrol "weeks" to construct the Blackbird and a large amount of time passes in this episode as a result. BattlestarWiki originally assumed this meant at most 2-4 weeks. However, the only plausible way that Pegasus and Resurrection Ship, Part I can take place six months after the attack is if "Flight of the Phoenix" actually lasted three months from beginning to end. Roslin was told in this episode that her cancer had accelerated, and she had only one month to live. As Cally's "welcome back" party happened earlier in the episode, when she was released from the brig around Day 86, a considerable period of time (several weeks at least) pass between these two scenes.
• The Colonial calendar is fairly similar to the Gregorian calendar, using 24 hour days and approximatly 365 day years. The best example of this is in "Tigh Me Up, Tigh Me Down", where Baltar says that each test takes 11 hours. As there are 47,905 tests, amounting to 526,955 hours worth of tests, this will take him 21,956 days -- 60.1534 years (as confirmed by Baltar's Internal Six), the same as it would on Earth.

Re-imagined Series definition: Executive Officer, e.g. Saul Tigh

Re-imagined Series definition: technology enabling travel across distances faster than the speed of light would permit, see: FTL

Re-imagined Series definition: refueling and replenishment between ships away from dock, usually during flight. Taken from the contemporary term for the resupply of military vessels at sea while en route ^{(TRS: "Water", "Maelstrom")}

Galactica 1980 definition: Dillon is called both a terrorist and a chauvinist by Jamie Hamilton during their phone call from the police station; he asks Troy "what's a terrorist chauvinist?" ^{(1980: "Galactica Discovers Earth, Part I")}

These are terms directly relating to Galactica 1980, some of which are based from the Original Series. For terms from that series, please refer to List of terms (TOS).

Re-imagined Series definition: plastic explosive similar to modern C-4, see: G-4 ^{(TRS: "Water")}

Original Series definition: a Colonial court hearing (see: Law of the Twelve Colonies)

Original Series definition: the equivalent of saying "objection" in a Colonial Tribunal ^{(TOS: "Murder on the Rising Star")}

Re-imagined Series definition: used to signify a civilian transport vessel over a certain gross weight/mass, i.e. Colonial Heavy 798

Re-imagined Series definition: the senior pilot on a battlestar

Re-imagined Series definition: in military parlance, directive to continue the attack; otherwise used to refer to journalists ^{(TRS: "Maelstrom")}

Re-imagined Series definition: the act of finding missing persons in the hopes of their rescue, see: SAR ^{(TRS: "Fragged")}

Re-imagined Series definition: a nickname used as a substitute for an aviator's given name in wireless communications and in conversation

Re-imagined Series definition: the process of using the FTL engines to make an near-instantaneous apparent faster-than-light transport of a ship from one point in space to another