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Editing Timeline (RDM)

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{{timeline series}}
:''For information on the specific dating system in the [[Re-imagined Series]], see [[Colonial calendar]].''


This article plots the events which were shown or mentioned in the history of [[The Twelve Colonies of Kobol|the Twelve Colonies]] from the [[Re-imagined Series]] and [[Caprica (series)|Caprica]].
{{cleanup}}


By convention, all dates are relative to the [[Fall of the Twelve Colonies]]. Events before the Fall are marked as "BCH," or "Before Cylon holocaust". Given the few and somewhat contradictory dates about the Colonials' ancient history and the exodus from Kobol, that part of the timeline is speculative.
This article attempts to plot the events illustrated or mentioned in the history and prehistory of [[The Twelve Colonies (RDM)|the Twelve Colonies]] in the [[Re-imagined Series]].


The Cylon holocaust occurs more than 150,000 years ago.
All dates use the day of the [[Fall of the Twelve Colonies]] as the central time marker for all events in the series. Items that occur before the Fall are marked as "BCH," or "Before Cylon holocaust."


==Ancient History==
==Ancient History==
:''See also: [[History of the Twelve Colonies]], [[Sacred_Scrolls#Analysis|Sacred Scrolls]]''
*'''4,000 years BCH:''' The [[Thirteenth Tribe]] leaves the planet [[Kobol]], later leaving a [[Lion's Head beacon|beacon]] in space and building the [[Temple of Five]] ([[The Eye of Jupiter]])<ref>[[Galen Tyrol]] cites 4,000 years as the approximate age of the Temple. This is the oldest date noted in the Re-imagined Series timeline, but also conflicts with the prior date of Pythia and her works as described by [[Elosha]] in the season 1 episode, "[[Kobol's Last Gleaming, Part I]]," where she notes that the exodus of '''all 13 tribes''' occurred 2,000 years prior.</ref>
*'''Unspecified time period:''' Humans on the planet {{RDM|Kobol}} organize themselves into twelve tribes {{TRS|Miniseries}}. According to [[Sacred Scrolls|at least one scripture]], they "live in utopia with the gods." The humans become sufficiently advanced to establish viable space travel and artificial, robotic life. Artificial life-forms, machines similar in nature to the later day Cylons, are created by the humans. A war against the machines occurs. At one point the machines evolve and take humanoid form, either before, during or after the war.  This group of humanoid Cylons are later referred to in the Sacred Scrolls as the "[[Thirteenth Tribe (RDM)|Thirteenth Tribe]]," although said text does not specify that they were a tribe of Cylons {{TRS|Sometimes a Great Notion}}.
*'''3,600 years BCH:''' [[Pythia]] records her prophecies
*'''Over 17,000 years BCH:''' A supernova creates the [[Ionian nebula]].
*'''2,000 years BCH:''' The remaining Twelve Tribes leave [[Kobol]]  
*'''ca. 4,000 years BCH:''' The Thirteenth Tribe reportedly leaves Kobol and builds the [[The Temple of Five|Temple of Hopes]] on [[Algae planet|another planet]] <ref name="kobol">Tyrol says that "Our initial radiocarbon dating suggests that the temple's at least 4,000 years old, which lines up with the exodus of the Thirteenth Tribe." {{TRS|The Eye of Jupiter}}. This is the oldest date noted in the series's timeline, but also conflicts with the prior date of Pythia and her works as described by [[Elosha]] in "[[Kobol's Last Gleaming, Part I]]," where she states that the exodus of '''all 13 tribes''' occurred approximately 2,000 years ago.</ref>   This contradicts [[Ellen Tigh]]'s statement that the temple was built 3,000 years ago {{TRS|No Exit}}. They pray for guidance and are shown the way to [[Earth (RDM)|Earth]], the planet they colonize.
*'''2,000 years to 52 years BCH:''' The Twelve Colonies grow and prosper. Each colony acts as a sovereign nation, complete with inter-colonial wars
*'''ca. 3,600 years BCH:''' [[Pythia]] records [[Sacred Scrolls#The Book of Pythia|her prophecies.]] Aside from reports of the landing on Earth and drawings of [[Temple of Aurora|temple]]s there, this book describes "the exile and rebirth of the human race" and a "dying leader" not making it to a "promised land," though how long before her writings that such events took place is not revealed.
*'''ca. 3,000 years BCH:''' A [[Lion's Head beacon|beacon]] is left at the [[Lion's Head Nebula]], later marking the way to Earth. At some undated point, someone travels from [[Earth (RDM)|Earth]] to Kobol, passing on information about Earth, including a map of its night sky <ref>Adama says that "According to Cottle, the [[Lymphocytic encephalitis|virus]] was an exact match to one reported over 3000 years ago, right around the time that the 13th colony left Kobol" {{TRS|A Measure of Salvation}}. This contradicts the two other dates of 2,000 and 4,000 years. While the dating is uncertain, it is the only clue to the beacon's age. That someone traveled back to Kobol is speculation, but an explanation for how Earth's sky could be displayed there. If true, it is still unknown on which of these two voyages the beacon was left behind.</ref>
*'''ca. 3,000 years to 2,000 years BCH:''' The humanoid Cylons of the Thirteenth Tribe prosper and begin to reproduce sexually. The technology of "[[Resurrection (RDM)|organic memory transfer]]," or downloading, is abandoned.
**The Thirteenth Tribe produce their own mechanical Centurions to act as laborers for their civilization.
*'''ca. 2,000 years BCH:'''  (''The order of events on Kobol and Earth is uncertain.'')
**[[Samuel Anders]], [[Tory Foster]], [[Ellen Tigh]], [[Saul Tigh]], and [[Galen Tyrol]], later collectively known as the "Final Five," are born on Earth.
**The Final Five work together in a research lab attempting to re-develop downloading technology.  The effort is spearheaded by Galen Tyrol and Ellen Tigh.
**All five Cylons receive visions of beings nobody else can see warning them of an impending rebellion by Earth's Centurion population.  The Final Five prepare a resurrection ship and leave it in orbit.
**The remaining Twelve Tribes leave Kobol and settle the [[Twelve Colonies of Kobol|Twelve Colonies]]<ref name="kobol"/>.
**Lord of Kobol "Athena" kills herself in despair over this. A [[Tomb of Athena|tomb]] is built for her containing a 3-D projection showing Earth and its Zodiac.  The projection is activated by the Arrow of Apollo, which travels with the twelve tribes.
**The Centurion uprising occurs and the Thirteenth Tribe exterminates itself in a nuclear holocaust.  Earth is left a nuclear wasteland.  The Final Five die in the attack, and are resurrected on board their orbiting ship.
**The Final Five begin a journey back to Kobol to find the other twelve tribes and inform them of Earth's fate. They are aware of the cyclical nature of history and believe that the twelve tribes will create Cylons again. They want to warn them to treat them right.  However, their ship is not equipped with a conventional FTL drive and journeys at relativistic sublight speeds.
*'''2,000 years to 52 years BCH:''' The Twelve Colonies grow and prosper. Each colony acts as a sovereign nation, complete with inter-colonial wars.
**The Final Five stop  at the Temple of Hopes as they retrace their tribe's path.
**The Final Five arrive at Kobol, finding the planet abandoned.  They continue on in pursuit of the twelve tribes, heading toward the colonies.


==Recent Colonial History==
==Recent Colonial History==
*'''69 years BCH''': [[Saul Tigh]] born (defined by deleted scene in "[[Scattered]]" concerning the ''[[Brenik]]'')
*'''64 years BCH''': [[William Adama]] born in Qualai, Caprica ([[Hero]])
*55 - 52 years BCH: Somewhere during this time, the [[Cylons (RDM)|Cylons]] are built to aid in hard labor and warfare ([[Caprica (series)]], [[Miniseries]])
*'''52 years BCH''': Cylon revolt starts the first [[Cylon War]] ([[Colonial Day]])
*'''52 years BCH''': [[Articles of Colonization]] signed ([[Colonial Day]], [http://blog.scifi.com/battlestar/archives/2005/04/index.html#a000025 RDM, April 11, 2005]).
*'''51 years BCH''' Colonial ship ''[[Brenik]]'' is lost after a boarding action by [[Cylon Centurion Model 0005|Cylon Centurions]]
*'''50 years BCH''': Battlestar ''[[Galactica]]'' enters service
*'''41 years BCH:''' [[William Adama]] begins his service in the Colonial Fleet as a Viper pilot, near the end of the Cylon War
*'''40 years BCH:''' Armistice ends the [[Cylon War]]; Cylons exile themselves from the Twelve Colonies ([[miniseries]])
*'''34 years: BCH:''' William Adama furloughed from the Colonial Fleet ("[[Scattered]]," "[[Hero]]")
*'''20 years BCH:'''
**Last significant [[FTL]] jump recorded in ''[[Galactica]]'s'' logs.
**[[Tom Zarek]] imprisoned for blowing up a government building on [[The Twelve Colonies (RDM)#Sagittaron|Sagittaron]] ([[Bastille Day]])
**[[William Adama]] and [[Saul Tigh]] first meet ([[Scattered]], podcast)
*'''17 years BCH:''' William Adama reinstated in the Colonial Fleet at the rank of Major ("[[Scattered]]," "[[Hero]]")
*'''11 years BCH:''' Major William "Husker" Adama assigned to battlestar ''[[Atlantia (RDM)|Atlantia]]''
**[[Laura Roslin]] begins her career in politics ([[Litmus]]). 
*'''7 years BCH:'''
**[[Saul Tigh|Saul]] and [[Ellen Tigh]] marry. ([[Kobol's Last Gleaming, Part I]], [http://www.scifi.com/battlestar/episodes/season01/112/deleted1.html deleted scene])
** William Adama promoted to Colonel and assigned as [[XO]] to battlestar ''[[Columbia (RDM)|Columbia]]'' ([[Hero]])
*'''5 years BCH:'''
**[[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 BCH:'''
**[[Felix Gaeta]] assigned to ''Valkyrie'' ([[Miniseries]])
** William Adama is promoted to Commander and assigned to battlestar ''[[Valkyrie]]'' ([[Hero]])
** Saul Tigh is promoted to Colonel and assigned to ''Valkyrie'' ([[Hero]])
** Galen Tyrol assigned to ''Valkyrie'' ([[Miniseries]], [[Hero]])
*'''2 years BCH:'''
**[[Caprica Six]] begins residence on Caprica ([[Downloaded]]), first encounters Dr. [[Gaius Baltar]] ([[Miniseries]])
**[[Sharon Valerii]] begins service aboard ''Galactica'' ([[The Farm]])
**[[Zak Adama]] dies in a flight school accident ([[Miniseries]])
**Lt. [[Kara Thrace]] is re-assigned from Flight School to ''Galactica'' ([[Act of Contrition]])
*'''1 Year BCH:''' Last time [[William Adama]] and [[Caroline Adama]] speak ([[Miniseries]])
** William Adama leads aborted covert intelligence mission aboard ''[[Valkyrie]]''. [[Daniel Novacek]] is shot down and captured by the Cylons ([[Hero]])
** William Adama, Saul Tigh, Felix Gaeta are re-assigned to battlestar ''Galactica'' ([[Hero]])
**[[Caroline Adama]] gets engaged ([[Miniseries]])
**[[Anastasia Dualla]] last visits her home ([[Final Cut]])
===Events of the [[Miniseries]]===
*'''Zero Hour:'''
**The [[Armistice Station]] is destroyed by Cylon forces
**Laura Roslin is diagnosed with inoperable breast cancer
**''Galactica'' is decommissioned
**The Twelve Colonies are heavily bombarded by nuclear bombs
**Picon [[Fleet Headquarters]] is destroyed
**A Colonial battle near Virgon ends with the total loss of the Colonial Fleet
**Battlestar ''[[Pegasus (RDM)|Pegasus]]'' luckily escapes the destruction of the [[Scorpian Fleet Shipyards]] ([[Pegasus (episode)|Pegasus]])
**''Galactica'' engages Cylon Raiders and survives with moderate damage and 85 dead
**Last transmission from the Colonies received by Laura Roslin aboard ''[[Colonial Heavy 798]]'' from a [[Jack|fellow secretary]]
**[[Case Orange]] contingency mechanism assigns Roslin the office of the President of the Twelve Colonies
**Roslin gathers stranded civilian and military ships around the vicinity of Caprica
**Commander Adama assumes overall Fleet command and orders regroup at [[Ragnar Anchorage]]
**Roslin's caravan survives two Cylon attacks and meets at Ragnar
**''Galactica'' changes from battle stance to civilian protection, escorts civilian fleet from Ragnar, towards the [[Prolmar Sector]]
==Season 1==
'''''Note:''' The timeline assumes that the days shown on Caprica with [[Helo]] corresponds to the timeline on ''Galactica''. This is supported in the season 1 finale "[[Kobol's Last Gleaming, Part II]]," when [[Kara Thrace|Starbuck]] travels from ''Galactica'' to Caprica and discovers Helo.''
==="[[33]]" through "[[The Hand of God (RDM)|Hand of God]]"===
*'''Day 6:''' ''Galactica'' pursued by the Cylons for six days. The ship ''[[Olympic Carrier]]'' is destroyed ([[33]])
*'''Day 7:'''
**First new child born on the ''[[Rising Star]]''
**''Pegasus'' encounters a fleet of 15 civilian ships, including ''[[Scylla]]'' ([[Resurrection Ship, Part I]])
*'''Day 10:''' ''Galactica''’s water tanks damaged by sabotage ([[Water]])
*'''Day 12:''' Prisoner uprising, led by [[Tom Zarek]] on the ''[[Astral Queen]]'' ([[Bastille Day]])
*'''Day 14:''' Starbuck goes missing after [[Skirmish over the Red Moon|a battle with Cylon forces]] ([[Act of Contrition]])
*'''Day 15:''' Starbuck returns to the Fleet ([[You Can't Go Home Again]])
*'''Day 17:''' A suicide bomber nearly kills Adama and Tigh; investigation centers on Galen Tyrol ([[Litmus]]).
*'''Day 21:''' First recollection by any of the ''[[Rising Star (RDM)|Rising Star]]'' crewmembers of giving [[Ellen Tigh]] medical assistance (before "[[Tigh Me Up, Tigh Me Down]]")
*'''Day 24:'''
**[[Sharon Agathon|"Caprica" Valerii]] and [[Karl Agathon|Helo]] make love for the first time
**"[[Shelly Godfrey]]" implicates Dr. Baltar in the attack on the Colonies; she later disappears ([[Six Degrees of Separation]])
*'''Day 25:''' A copy of [[Leoben Conoy]] found, interrogated and ejected from airlock ([[Flesh and Bone]])
*'''Day 26:''' Ellen Tigh regains consciousness ("a couple of days" before "[[Tigh Me Up, Tigh Me Down]]")
*'''Day 28:''' William Adama retrieves [[Ellen Tigh]] ([[Tigh Me Up, Tigh Me Down]])
*'''Day 36:'''
**''Galactica'' [[Battle for the Tylium Asteroid|engages a Cylon mining base]] and retrieves needed [[tylium]] fuel
**"Caprica-Valerii" begins showing the first signs of pregnancy ([[The Hand of God (RDM)|The Hand of God]])
===[[Colonial Day]]===
*'''Day 46 - 49:'''
**Delegates selected for the [[Quorum of Twelve]], including  [[Tom Zarek]]
**Gaius Baltar selected to represent [[The Twelve Colonies (RDM)#Caprica|Caprica]]
**''A victory party leads Baltar and Thrace to interact''<ref>Roslin states that the chair will remain open for nominations for 72 hours on the morning of Day 47, but the [[Kobol's Last Gleaming, Part II|next episode]] clearly takes place the day after the victory party, and is stated to take place on Day 50.</ref>
**Helo and Caprica-Valerii infiltrate the spaceport. Helo discovers Valerii is a Cylon and flees
===[[Kobol's Last Gleaming, Part I]]===
*'''Day 50:'''
**Boomer and Crashdown stumble upon [[Kobol]]
**Roslin unsuccessfully petitions Commander Adama to send the Cylon Raider after the [[Arrow of Apollo]] on [[The Twelve Colonies (RDM)#Caprica|Caprica]].
**Scout party ambushed by a [[Basestar (RDM)|basestar]] at Kobol
===[[Kobol's Last Gleaming, Part II]]===
*'''Day 51:'''
**Survivors of [[Raptor 1]] escape the wreck
**Adama terminates Roslin's presidency and arrests her
**Starbuck absconds with the purloined Raider and arrives at Caprica, retrieving the [[Arrow of Apollo]] and meets up with Helo
**Boomer successfully destroys basestar over Kobol
**Boomer's Cylon programming activates; she shoots Commander Adama at point-blank range
==Season 2==
''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]]"===
*'''Day 51:''
**The Fleet is temporarily scattered after ''Galactica'' misses the proper [[Emergency Jump Coordinates| emergency rendezvous point]] but later returns ([[Scattered]])
**Galactica'' is partially disabled by a Cylon virus while a [[Cylon Centurion]] boarding party unsuccessfully attempts to destroy the ship ([[Valley of Darkness]])
**[[Crashdown]] is shot by [[Gaius Baltar]] on Kobol after threatening to shoot [[Cally Henderson]] ([[Fragged]])
*'''Day 52:''' Tigh interrogates Tyrol and imprisons him with [[Sharon Valerii]] ([[Resistance (episode)|Resistance]])
*'''Day 53:'''
**Saul Tigh declares martial law after Roslin's arrest
**The [[Gideon]] Massacre takes place
**Tyrol poisoned by Baltar to gain information from Boomer, but is revived
**Starbuck and Helo meet the [[Caprica Resistance]] and [[Samuel Anders]]
**Cally Henderson kills Boomer ([[Resistance (episode)]])
*'''Day 54:'''
**Commander Adama awakens
**Roslin escapes from ''Galactica'' ([[Resistance (episode)]])
*'''Day 61:'''
**Laura Roslin takes 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 Thrace is rescued
**Thrace, Helo, and Caprica-Valerii leave Caprica for Kobol
** [[Simon|The doctor]] who tended to Thrace at the Farm is revealed to be a Cylon agent ([[The Farm]])
===[[Home, Part I]]===
*'''Day 62:'''
**Kara Thrace's captured [[Cylon Heavy Raider|Heavy Raider]] lands her Heavy Raider aboard the ''[[Astral Queen]]''
**Roslin orders Valerii thrown into the brig instead
**Commander Adama promotes Captain [[George Birch]] to be the new ''Galactica'' CAG
*'''Day 64:'''
**Roslin's party begins search on Kobol for the [[Tomb of Athena]]
**[[Elosha]] dies
**Adama decides to reunite the Fleet and begins preparations for returning to Kobol
===[[Home, Part II]]===
*'''Day 65:'''
**Adama's party joins with Roslin's party
** [[Tomb of Athena]] found
**Roslin reestablished as lawful President, Fleet reunified
===[[Final Cut]]===
*'''Day 75:''' [[D'anna Biers]] produces a documentary aboard the Galactica about the "[[Gideon massacre]]"''
===[[Flight of the Phoenix]]===
:''The events of this episode likely occur over several weeks with the construction of the [[Blackbird]], and it was designed to have a vague timeline per the episode [[Podcast:Flight of the Phoenix|podcast]].''
*[[Cally Henderson]] is released from the brig
*Laura Roslin is given a few weeks, a month at the most to live.
*Traces of the Cylon virus ([[Valley of Darkness]]) reemerge as a logic bomb and begin to disable ''Galactica's'' systems
*Tyrol begins construction of the [[Blackbird]]
*[[Great Cylon Turkey Shoot|''Galactica'' routs hundreds of Cylon fighters]]
*Cylon logic bomb purged from ''Galactica''
*The ''Laura'', the completed Blackbird, is successfully tested
===Prior to the episode, "[[Sacrifice]]"===
*'''Day ~140''': [[Cylon Raider (RDM)|Cylon Raider]]s attack the freighter ''[[Greenleaf]]'';  [[Ray Abinell]] is killed in the attack ([[Sacrifice]])
===[[Pegasus (episode)|Pegasus]]===
:''The events in this episode create a [[Season two timeline discontinuity|timeline problem]] in season 2 events. As such, most events here are not timestamped.''
*''Galactica'' encounters the battlestar ''[[Pegasus (RDM)|Pegasus]]''
*Admiral [[Helena Cain]] assumes fleet command
*[[Galen Tyrol|Tyrol]] accidentally kills ''Pegasus'' Lieutenant [[Alistair Thorne|Thorne]] and is arrested together with [[Karl Agathon|Helo]]
*A standoff between the two battlestars begins over the treatment of the arrested ''Galactica'' crew
===[[Resurrection Ship, Part I]]===
*'''Day ~175:'''<ref>The episodes "Resurrection Ship, Part I" and "Epiphanies" state that events in the episode "[[Pegasus (episode)|Pegasus]]" and the episodes immediately following it take place six months after the Cylon Attack.  Ron D. Moore states in his podcast that it took Tyrol "weeks" to construct the Blackbird and a large amount of time passes in this episode as a result. While this figure was assumed to be 2 to 4 weeks, 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 Henderson'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</ref>
**The standoff between the two battlestars ends
**Starbuck returns from an unauthorized surveillance mission to the Cylon fleet with data on the [[Resurrection Ship]]
===[[Resurrection Ship, Part II]]===
*'''Day ~177'''
**The [[Battle of the Resurrection Ship]] occurs. The Resurrection Ship is destroyed
**The Blackbird is destroyed in the battle
**Admiral Cain is killed by [[Gina]]
**President Roslin promotes William Adama to Admiral
===[[Epiphanies]]===
*'''Day 189:'''
**''President Roslin near death''
**A [[Demand Peace|Cylon peace movement]] begins to pose as a threat to [[The Fleet (RDM)|the Fleet]]
**The Cylon fetus is eventually spared
**Cylon fetal stem cells used to cure President Roslin
**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]]===
:''No timeline markers are available for this episode.''
*Commander Fisk is murdered
*Lee Adama kills [[Phelan]], leader of the [[Black market (organization)|Black Market]] crime syndicate
===[[Scar]]===
:''No timeline markers are available for this episode.''
*Mining operations continue for over 28 days in an asteroid field
*Starbuck and [[Kat]] destroy an ace Cylon Raider, nicknamed "[[Scar (Raider)|Scar]]''
===[[Sacrifice]]===
:''No timeline markers are available for this episode.''
*[[Sesha Abinell]] creates hostage situation on ''Cloud Nine''
*Lee Adama wounded as a result of a failed rescue attempt by [[Kara Thrace]]
*Abinell and hostage takers are killed
*[[Billy Keikeya]] dies
===[[The Captain's Hand]]===
:''No timeline markers are available for this episode.''
*[[Kara Thrace]] assigned to ''Pegasus'' as flight instructor
* [[Lee Adama]] has been promoted to Major and temporarily assigned to ''[[Pegasus (RDM)|Pegasus]]''
*[[Rya Kibby]] arrives on ''Galactica'' seeking a clandestine abortion from Dr. [[Cottle]] and requests asylum
*''Pegasus'' Commander [[Barry Garner]] dies during the [[Battle of the Binary Star System]]
*Major Adama is promoted to Commander and given command of ''Pegasus''
*Roslin places a moratorium on abortion
*Vice President Gaius Baltar announces his candidacy for president in the upcoming election
===[[Downloaded]]===
:''The originally aired episode contained an error which placed the events of the previous episode, "[[Resistance (episode)|Resistance]]," ten weeks prior. This was corrected for the DVD release and subsequent airings.''
*'''Day 270:'''
**[[Hera Agathon]] born, approximately one month premature<ref>The date of Valerii and Agathon's child is speculated from the events in [[Season 1 (2004-05)|Season 1]] and during the events of "[[Resurrection Ship, Part I]]", assuming that the [[Cylon agent]]s 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.</ref>
**President Roslin, in secret from Admiral Adama, has Hera's death faked and child hidden as an adoption by [[Maya]]
**[[Caprica-Six]] and [[Sharon Valerii|Boomer]] are [[Resurrection (RDM)|resurrected]]
**Caprica-Six and Boomer resolve to persuade the Cylons to adopt a new approach in dealing with the Colonials
===[[Lay Down Your Burdens, Part I]]===
:''Tom Zarek states that the fleet has been "cooped up in metal boxes for nine months" the morning after the in this episode. 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.''
*'''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 Henderson after being woken from a nightmare
*'''c. Day 270:'''
**[[Talk Wireless]] reports on first debates
**Caprica rescue mission departs<ref>While the time needed to get to Caprica may be considerable, the amount of fuel, rations and supplies would make it unlikely that the trip takes more than one-half day.</ref>
**[[Racetrack]] accidentally discovers a habitable planet
**SAR team arrives at Caprica and meets with [[Samuel Anders]]'s [[Caprica Resistance|Resistance]]
**Tyrol begins counseling with Brother [[Cavil]]
*'''c. Day 280:''' Final presidential debate
*'''c. Day 283:'''  Polls open (projected)
===[[Lay Down Your Burdens, Part II]]===
*'''Day 281:'''
**Thrace's SAR team and Anders' resistance are pinned down by a Cylon sneak attack and are under siege for 18 hours
**The next morning, the rescue discover the Cylons have completely abandoned Caprica and encounter a [[Cavil]]
*'''Day 282:'''
**The SAR mission returns to ''Galactica''
**Cavil is discovered to be a Cylon agent
*'''Day 283:'''
**The polls close and votes are tabulated; Baltar wins
**[[Tory Foster]] conspires to rig the vote results to keep Roslin in power
**The plan is revealed to Admiral Adama, who convinces Roslin to step down to let Baltar become president
*'''Day 284:'''
**Baltar is inaugurated President.
**[[Gina]] detonates the nuclear warhead given to her by Baltar and destroys ''Cloud 9'' and several other nearby 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:'''
**Many of ''Galactica''’s and ''Pegasus''’s crew muster out of the Colonial Fleet to settle on New Caprica
**Anastasia Dualla is promoted to Lieutenant and requests to transfer to ''Pegasus'' as Lee Adama's XO
**Galen Tyrol and Cally Henderson marry. Cally Tyrol soon becomes pregnant
**Felix Gaeta retires from military duty and becomes President Baltar's Chief of Staff
**The fleet begins the process of settling on New Caprica
===Flashback events from "[[Unfinished Business]]"===
*'''c. Day 420: Four months or 120 days after settlement begins
:''The flashback sequences from "[[Unfinished Business]]"  occurred 17 months prior to the present-day events of the 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
**Kara Thrace marries Samuel Anders, and Commander Adama and Captain Thrace avoid speaking to each other
**Commander Adama proposes to Dualla
*'''Between c. Day 421 and c. Day 660'''
** Lee Adama and Anastasia Dualla marry and remain on ''Pegasus''
**[[Sharon Agathon]] and Karl Agathon marry and remain on ''Galactica''
** Lee Adama takes to over-eating and gains significant weight between then and when the Cylons arrive
**After settling on New Caprica, Tyrol becomes a union leader
**James "[[Jammer]]" Lyman and Tucker "[[Duck]]" Clellan retire and settle on New Caprica
**Former President Laura Roslin becomes a school teacher on New Caprica, with Maya as 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 Tigh settle on New Caprica
**Galen and Cally Tyrol organize a general labor strike in protest of Baltar's poor leadership as President
**Cylon forces invade and occupy New Caprica
**''Galactica'' and ''Pegasus'' escape with the remains of the Fleet to parts unknown with the Cylon advance
=="[[Battlestar Galactica: The Resistance]]"==
*'''Between Day 660 and c. 727:'''
**[[Nicholas Tyrol]] is born to Cally and Galen Tyrol.
**[[Kara Thrace]] is kidnapped and forced into a marriage-type arrangement with [[Leoben Conoy]], whom she kills at any opportunity
**A resistance movement is led by  [[Saul Tigh]], [[Galen Tyrol]] and later [[Samuel Anders]]


''The most recent history could also be dated using the [[Colonial calendar#The Calendar from Caprica|calendar from ''Caprica'']], but the method was not used in the re-imagined series and remained in the background even on the new show. Furthermore, it is not known whether the calendar is specific to the planet Caprica or common to the twelve worlds.
*'''c. Day 727 (427th day since settlement, 67th day of occupation)
** 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 form the [[New Caprica Police]]


*'''At least 200 years BCH:''' Humans develop an immunity to the virus causing [[Lymphocytic encephalitis]] {{TRS|A Measure of Salvation}}. <ref>Doctor Cottle notes the time as "a couple hundred years ago," which is an indeterminate amount of time, but likely less than four or five hundred years.</ref>
*Duck refuses to work with the resistance, choosing to spend more time with [[Nora]]
*'''ca. 93 BCH:''' [[Tauron Civil War]] causes emigration of [[Joseph Adama|Joseph]] and [[Sam Adama]] to {{RDM|Caprica}} to live in an orphanage. Joseph later becomes a lawyer thanks to the education funded by the [[Ha'la'tha]] crime syndicate; Sam becomes an assassin for Ha'la'tha {{CAP|Pilot (Caprica)}}.
*After some debate, the resistance leaders choose to hide weapons in the [[Temple|Temple of Artemis]]
*'''69 years BCH:'''
*During the night, Tigh, Tyrol, Jammer, and Barolay disguise the weapons in the temple's altar
**[[Saul Tigh]] supposedly born (defined by deleted scene in "[[Valley of Darkness]]" concerning the ''[[Brenik]]''). This is actually a fabrication by [[John Cavil]].


===First Cylon War===
*'''Day 729?:'''
:''See [[Timeline - Caprica (RDM)]]''
*Cally Tyrol and Nora are at the temple
*The Cylons attack the temple, killing Nora
*Duck is physically sickened by the news of Dora's death


*'''58—52 years BCH:''' With the use of a meta-cognitive processor stolen from Tauron rival [[Tomas Vergis]], the Caprican tech CEO [[Daniel Graystone]] creates the first [[Cylons (RDM)|Cylons]] of the Twelve Colonies to aid in hard labor and warfare. A virtual copy of his dead monotheist daughter [[Zoe Graystone]]'s consciousness is downloaded into one {{CAP|Pilot (Caprica)}}. Humanity is unaware that they are repeating the actions of their ancestors on Kobol.
*'''Day 730?:'''  
*'''ca. 58 BCH:'''
*Tigh, Barolay, and Jammer discuss the effects of the attack, which has brought about positive effects for the resistance
**[[William Adama]] born in [[Qualai]], {{RDM|Caprica}} {{TRS|Hero}}. He is named for his deceased older brother {{CAP|Apotheosis}}.
*The general population has started to side with the resistance and 1,000 people protested outside ''[[Colonial One]]'' over the attack on the temple
*{{inlineref|52 BCH|52 years BCH}}:'''
*Since the attack, recruitment has become easier with 150 Colonials signing up
**Cylon revolt starts the first [[Cylon War]] {{TRS|Colonial Day}}.
**[[Articles of Colonization]] signed {{TRS|Colonial Day}}.<ref>From Ronald D. Moore's [http://blog.scifi.com/battlestar/archives/2005/04/index.html#a000025 scifi.com blog post] of April 11, 2005: "Colonial Day occurs every year and it is the anniversary of the founding of the "federal" system of government which was a relatively recent event. Before that time, the Colonies functioned more or less on their own, possibly with various attempts at alliances or even complete Colonial government over the centuries since the exodus from Kobol, none of which were successful. When the first Cylons were created, individual Colonies still warred against one another and it wasn't until the Cylon rebellion that the 12 Colonies finally came together in a permanent way. Presumably, the Articles of Colonization were not made up out of whole cloth, however, and there may well be principles and ideas of justice that date back to the original colonists."</ref>
*'''51 years BCH:''' Colonial ship ''[[Brenik]]'' is lost after a boarding action by [[Cylon Centurion Model 0005|Cylon Centurions]] ([[Valley of Darkness]], deleted scene).
*'''ca. 50 years BCH:''' Battlestar ''[[Galactica (TRS)|Galactica]]'' enters service.
*'''42 years BCH:'''
** William Adama begins his service in the Colonial Fleet as a [[Raptor]] pilot aboard ''[[Galactica (TRS)|Galactica]]'' with co-pilot and ECO [[Coker Fasjovik]], 10 years into the Cylon War ("Hero," ''[[Blood and Chrome]]''). He is later promoted to Lieutenant and is assigned his first Viper, a [[Mark III]], and a special task force comprised of top pilots for dangerous missions.
** Battlestar ''[[Archeron]]'' destroyed by Cylon forces in [[Sector 12]]. All hands lost {{TRS|Blood and Chrome}}.
** Battlestar ''[[Osiris]]'' destroyed over [[Djerba]] in suicide maneuver against lone Cylon Baseship. All hands lost. Fate of Lt. [[Jim Kirby]] (AWOL) unknown.
** [[Becca Kelly]] succeeds in her mission on Djerba, and is later killed by the Cylons. [[Ghost Fleet Offensive]] successful, decimating Cylon military holdings in five sectors.
** Mechanical Cylons begin experiments constructing humanoid forms of Cylon.
*'''42-41 years BCH''': [[Coker Fasjovik]] presumably musters out of Fleet after termination of second mandatory tour.
*'''40 years BCH:'''
**Experiments on "humanoid" Cylons culminate in the creation of the [[First Hybrid]] and subsequent [[Hybrid]]s, but no fully humanoid forms.
**The Final Five arrive in the Twelve Colonies in the waning days of the war.
**The Five meet the local Cylons and negotiate an end to the war.  They will give the Cylons biological bodies complete with resurrection technology if the Cylons agree to end the war.
**[[Operation Raptor Talon]] conducted by the Colonial Fleet, where William Adama flies his first official Viper mission. Battlestar ''[[Columbia (RDM)|Columbia]]'' destroyed {{TRS|Razor Flashbacks}}.
**Armistice ends the [[Cylon War]]. Cylons exile themselves from the Twelve Colonies {{TRS|Miniseries}}. The First Hybrid and his [[Cylon Centurion Model 0005#Guardians|Guardians]] part company with the other Cylons.
**William Adama musters out of the Colonial Fleet ("[[Scattered]]," [[Sources:Adama's Dossier|Adama's dossier]]).


===Inter-War Period===
*Tyrol and Tigh discuss the arrest of Jammer by the Cylons
*'''37 BCH:''' William Adama enlists as merchant marine and serves aboard inter-colony freighters ("Scattered," Adama's dossier).
*Jammer is imprisoned in a Cylon detention center and is visited by a [[Number Five]], who offers Jammer a key card and an implied invitation into the NCP
*'''37 to ca. 30 BCH:'''
 
** The Cylons establish a secret base known as [[The Colony]], built around and connected with the original ship of the Final Five. This is the place where research and development equipment belonging to the Final Five is stored.
==Season 3==
**The Final Five create [[John Cavil]], the first of the new humanoid Cylons that are their "children," and designate him model Number One. They raise him for some time.
 
**John matures and assists the Final Five in the creation of seven other humanoid Cylon models.  A resurrection system is built for the new models based on technology left over from the Thirteenth Tribe.
*'''Prior to the Season 3 premiere:'''
*'''ca. 30 BCH:'''
**[[Saul Tigh]] is captured by the Cylons and detained. One of his eyes is literally ripped out by the Cylons
**Cavil murders model [[Number Seven]], Daniel, out of jealousy by poisoning the amniotic fluid in which the Seven copies were maturing. 
**Jammer and Duck enlist with the [[New Caprica Police]]
**The Final Five are murdered by Cavil and their consciousnesses are [[boxing|boxed]].
 
**Cavil erases all knowledge of the Final Five and the missing model Number Seven from his fellow humanoid Cylon models and specifically programs them not to think about either.
===[[Occupation]]===
**[[Saul Tigh]] is resurrected and introduced to the colonies as a military officer with false history of fighting in the war.
 
** [[Ellen Tigh]] is resurrected and introduced into Colonial society sometime thereafter.
*'''c. Day 794 (494th day since settlement, 134th day of occupation):''' Colonel Tigh is released from the detention center
*'''ca. 28 BCH:'''  
 
** [[Galen Tyrol]] supposedly born.<ref>At the time of the Cylon attack, Tyrol has "ten years experience" {{TRS|Miniseries}}, and has "served on battlestars since I was 18" {{TRS|Resistance (episode)}}. This puts his birth in approximately 28 BCH, allowing for a few years leeway with the first comment.</ref> This is actually a fabrication by [[John Cavil]].
*'''c. Day 795:'''
** First meeting between William Adama and Saul Tigh ("Scattered," "[[Torn]]"). <ref>The podcast for "[[Scattered]]" places their meeting "twenty years ago". In "[[Torn]]," Adama states that he has known Tigh for 30 years. Furthermore, [[Sources:Adama's Dossier|Adama's dossier]] places his reinstatement into the Colonial Fleet at 23 BCH. ''Battlestar Wiki'' choses to use the more consistent dates.</ref>
**[[Duck]] suicide-bombs a NCP ceremony
*'''ca. 27 BCH:''' William and [[Carolanne Adama]] meet and marry. <ref name = "leezak">This date is assumed as follows: Zak died 2 BCH. Since he graduated from some kind of military academy, he would be at least 22 years old, following real world models. On a [[:Image:Youngadamafamily.jpg|photograph]] of William Adama with his sons, Lee seems to be about two years older than Zak. Adama and his wife probably met not long before Lee's birth.</ref>
**Felix Gaeta secretly provides the jamming frequencies
*'''ca. 26 BCH:''' [[Lee Adama]] born. <ref name = "leezak"/>
**The resistance establishes communication with [[Margaret Edmondson|Racetrack]]'s Raptor
*'''ca. 24 BCH:''' [[Zak Adama]] born. <ref name = "leezak"/>
 
*'''23 years BCH:''' William Adama reinstated in the Colonial Fleet at the rank of Captain and is assigned to the battlestar ''[[Universal]]'' <ref>[[:Image:William Adama's Reinstatement Letter.jpg|This information comes from a prop used in the episode "Scattered".]]</ref> ("Scattered" deleted scene, Adama's dossier).
*'''Sometime before the episode, "Precipice:"''' Laura Roslin is arrested by the Cylons
*'''21 years BCH:''' Saul Tigh reinstated in the Colonial Fleet at the rank of Captain by now-Major Adama (Scattered). <ref>The time between Adama's and Tigh's reinstatement is not specified on screen. The February/March issue of ''Battlestar Galactica: The Official Magazine'' gives it as two years: "''Adama reenlisted with the service and Tigh spent two years drinking before Adama pulled strings to get him back into service.''"</ref> <ref>In actually, this is Saul Tigh's ''entrance'' into the Colonial Fleet, not his return, as he did not serve in the Cylon War and all documents of his service and retirement were forged by John Cavil.</ref>
 
*'''20 years BCH:'''
===[[Precipice]]===
**Last significant [[FTL]] jump recorded in ''Galactica'''s logs (Miniseries).
*'''c. Day 795:''' The [[New Caprica Police|NCP]] raid the tents of and capture numerous suspected [[New Caprica Resistance|resistance]] members, including [[Cally Tyrol]]
**[[Tom Zarek]] imprisoned for blowing up a government building on [[Sagittaron]] {{TRS|Bastille Day}}.
*'''c. Day 796:'''
*'''17 BCH:''' William Adama assigned to the battlestar ''[[Atlantia (RDM)|Atlantia]]'', where he makes his 1000th Viper landing (Adama's dossier, "[[Act of Contrition]]").
**Leoben Conoy introduces [[Kacey]] to Kara Thrace
*'''13 years BCH:''' William Adama assigned as executive officer to the new battlestar ''[[Columbia (RDM)|Columbia]]'' (Adama's dossier).
**Another suicide bomber damages the power substation
*'''11 years BCH:''' [[Laura Roslin]] begins her career in politics {{TRS|Litmus}}.
**The Cylon conference forces Baltar to sign an execution order
*'''ca. 10 years BCH:''' Galen Tyrol enlists in the Colonial Fleet as a non-commissioned officer.<ref>At the time of the Cylon attack, Tyrol has "ten years experience" {{TRS|Miniseries}}. It is likely that Tyrol (and the two other remaining members of the Final Five, Samuel Anders and Tory Foster), was introduced into Colonial society at or around this point by [[John Cavil]] as part of his plan for revenge on his creators, human and Cylon alike {{TRS|No Exit}}.</ref>
**Ellen Tigh steals a map marking the location for a secret rendezvous with ''Galactica's'' rescue coordination party, led by Sharon Agathon
*'''9 years BCH:''' William Adama promoted to commander and assigned as commander of the battlestar ''[[Valkyrie]]'' (Adama's dossier, "Hero").
**Roslin and others on the execution order are arrested and later driven to the [[Pergamus Flats]]
*'''7 years BCH:''' Saul and [[Ellen Tigh]] meet and marry again, unaware that it is the second time ("[[Kobol's Last Gleaming, Part I]]," [[List of Deleted Scenes (RDM)#Kobol's Last Gleaming, Part I|deleted scene]]).
**Sharon Agathon's group lands, makes contact with Anders' party, and are soon attacked by Cylon forces
*{{inlineref|6 BCH|6 years BCH}}: William Adama leads an aborted covert intelligence mission aboard ''Valkyrie''. [[Daniel Novacek]] is shot down and captured by the Cylons. Adama and Tigh are subsequently assigned to ''Galactica'' (Adama's dossier, "Hero"). <ref name="hero">While dialogue from "[[Hero]]" places these events at 1 BCH, this contradicts previously established dates about the time Adama and others served on ''Galactica''. See [[Hero#Analysis]] for a detailed explanation why ''Battlestar Wiki'' chooses to treat this as a continuity error and change the date.</ref>
**Shots ring out at the group execution site, where Jammer frees Cally Tyrol before the shooting begins
*'''5 years BCH:'''
 
**[[Laura Roslin]]'s last breast exam prior to her cancer diagnosis {{TRS|Act of Contrition}}.
===[[Exodus, Part I]]===
**Galen Tyrol assigned to ''Galactica'' {{TRS|Litmus}}. <ref>Since Adama states that Tyrol has been under his commander for "over five years," this might also be one year earlier.</ref>
*'''c. Day 796:'''
*'''4 years BCH:'''
**Tyrol's group ambush the firing squad and save Laura Roslin, Tom Zarek and many others
**[[Kara Thrace]] graduates from the Colonial Fleet Academy {{TRS|Maelstrom}}.
**Sharon Agathon's marines save Agathon and the resistance group
**[[Socrata Thrace]] dies of stomach cancer (Maelstrom).
 
*'''3 years BCH:''' [[Felix Gaeta]] assigned to ''Galactica'' (Miniseries).
*'''c. Day 797:'''
*{{inlineref|2 BCH|2 years BCH}}:
**Number Three visits an [[Dodona Selloi|oracle]]  
**[[Caprica-Six]] begins residence on Caprica {{TRS|Downloaded}}, first encounters Dr. [[Gaius Baltar]] (Miniseries).
**The Cavil killed by Tyrol's ambush returns to ''[[Colonial One]]''
**[[Sharon Valerii]] begins service aboard ''Galactica'' {{TRS|The Farm}}.
**Sharon Agathon infiltrates into the facility and obtains the Colonial ships' [[launch key]]s
**Zak Adama dies in a flight school accident (Miniseries).
**Ellen Tigh is exposed as a traitor
**Lt. [[Kara Thrace]] is re-assigned from flight school to ''Galactica'' {{TRS|Act of Contrition}}.
**Admiral Adama initiates the New Caprica rescue
*'''1 Year BCH:'''  
 
**Last time William and Carolanne Adama speak (Miniseries).
===[[Exodus, Part II]]===
**Carolanne Adama gets engaged (Miniseries).
*'''c. Day 798:'''
**[[Anastasia Dualla]] last visits her home {{TRS|Final Cut}}.
**Ellen Tigh is poisoned for her traitorous acts by her husband
*'''Between 5 and 1 Year BCH:'''
**The [[Battle of New Caprica]] begins; the Fleet is reunited and New Caprica is abandoned
**''The following events are all seen in "[[Daybreak, Part I]]" and "[[Daybreak, Part II|Part II]]" but are not dated.  However, they fall within this approximate time frame.''
**''Pegasus'' is sacrificed in the battle
**[[Laura Roslin]]'s father and sisters are killed by a drunk driver.
**[[Hera Agathon]] is found by the Cylons, who also abandon New Caprica
**[[Kara Thrace]] and [[Lee Adama]] first meet.
 
**[[Caprica-Six]] finds [[Julius Baltar]] a new home in a retirement center which encourages horticultural activities.
===[[Collaborators]]===
**[[William Adama]] ponders retirement at a security firm but rejects the job in disgust when forced to take a polygraph test.
*'''c. Day 800 (Day 3 of the Second Exodus)'''
***[[Saul Tigh|Saul]] and [[Ellen Tigh]] celebrate his (and their own) supposed retirement.
**James "Jammer" Lyman, and 12 others before him are executed by [[The Circle]] for being Cylon collaborators
**[[Sharon Valerii]] nearly washes out of the Colonial Fleet, but is given a second chance by Commander Adama.  She promises to pay him back for his kindness.
**Gaius Baltar awakens aboard a Cylon basestar for the first time after fleeing New Caprica
**[[Laura Roslin]] joins [[Richard Adar]]'s presidential campaign.
**New President Tom Zarek names Roslin as his Vice President, and will resign to return Roslin to power
**[[Gaius Baltar]] promises [[Caprica-Six]] full access to the Colonial Defense Mainframe if she helps him work on the [[Command Navigation Program]].
**Felix Gaeta is tried and convicted by The Circle 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 Adama is demoted back to Major<ref>This establishes that the rank of Major is the highest rank a Colonial soldier may have when not in command of a ship.</ref>  and resumes his former position as ''Galactica'''s [[CAG]]
** Helo serves as [[XO]] on ''Galactica''
 
===[[Torn]]===
*'''c. Day 850:'''
** Felix Gaeta reveals Baltar's research on the road to [[Earth]] to President Roslin and Admiral Adama
** 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"
** A Cylon basestar sent to investigate the [[Lion's Head Nebula]] is infected by a virus from an [[Lion's Head beacon|ancient probe]]
** Kara Thrace and Saul Tigh sow dissent between the survivors of New Caprica and the crew that stayed behind on ''Galactica''; Admiral Adama puts a stop to it
** Athena and Racetrack find the Lion's Head Nebula and the dying basestar
** Baltar returns to the basestar after his reconnaissance of the dying basestar, leaving out information on the probe, but his omission is uncovered
 
===[[A Measure of Salvation]]===
*'''c. Day 851:'''
** A Colonial boarding party 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
**The medical 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
**Helo sabotages the mission in secret
** Aboard the basestar, Baltar is interrogated and tortured by Three and Caprica-Six
 
===[[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
**''Galactica'' rescues [[Daniel Novacek]] a prisoner-of-war of the Cylons for over two years
** Adama confesses to his son that he was responsible for shooting Novacek down and was possibly responsible for attack on the Colonies because of the mission
 
*'''c. Day 936:'''
**Saul Tigh tells Novachek that Adama was responsible for shooting him down
**Novacek confronts Adama and tries to kill him but Tigh intercedes
 
*'''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 [[Final five|five figures in white robes]]
**Adama submits his resignation to Roslin but she refuses to accept it and insists he attend the his ceremony
 
*'''c. Day 938'''
**Novacek is sent off to a berthing and counselling on another ship
**Tigh and Adama begin to reconcile


== 1 ACH ==
1 ACH (After Colonial Holocaust) denotes a period of 365 days, the epoch of which is the [[Fall of the Twelve Colonies]]. The events of this time period correspond to the majority of Season 1 and Season 2, in addition to:


=== Return of the [[Miniseries|Cylons]] ===
==="[[Unfinished Business]]," Present Day===
*{{inlineref|0 BCH|Zero Hour}}:
**The Cylon fleet gathers at a staging area close to [[The Colony]] {{TRS|The Plan}}.
**John Cavil makes his final preparations for the impending assault and visits a sealed-off resurrection chamber housing deactivated copies of the [[Final Five]] {{TRS|The Plan}}.
**The [[Armistice Station]] is destroyed by [[Cylons (RDM)|Cylon]] forces, appear, and show themselves, (albeit in a more advanced form, as well as a humanoid version) for the first time in 40 years {{TRS|Miniseries, Night 1}}.
**[[Laura Roslin]] is diagnosed with inoperable breast cancer {{TRS|Miniseries, Night 1}}.
**''[[Galactica (TRS)|Galactica]]'' is decommissioned {{TRS|The Plan|Miniseries, Night 1}}.
**''[[Pegasus (RDM)|Pegasus]]'' undergoes refit while [[Kendra Shaw]] is assigned to the ship from the [[Ministry of Defense]] {{TRS|Razor}}.
**A Cavil meets with [[Caprica-Six]], who gives him the access codes to the Colonial Defence Mainframe {{TRS|The Plan|Miniseries, Night 1}}.
**The Cylon strike force simultaneously jumps into orbit around all the Twelve Colonies and commences an all-out attack {{TRS|The Plan}}, using strategic nuclear bombardment {{TRS|Miniseries, Night 1}}.
**[[Picon (RDM)|Picon]] [[Fleet Headquarters]] is destroyed {{TRS|Miniseries, Night 1}}.
**[[Ellen Tigh]] is placed aboard Raptor from the medical ship ''[[Rising Star]]'' by [[John Cavil]] shortly before it escapes the destruction of Picon {{TRS|The Plan|Tigh Me Up, Tigh Me Down|No Exit}}.
**''Galactica''{{'|s}} last [[Viper Mark VII]] squadron is destroyed {{TRS|Miniseries, Night 1}}.
**A battle near [[Virgon (RDM)|Virgon]] ends with the total loss of the remaining Colonial Fleet including the flagship ''[[Atlantia (RDM)|Atlantia]]'' {{TRS|Miniseries, Night 1}}.
**The [[Mercury class battlestar|battlestar]] ''[[Pegasus (RDM)|Pegasus]]'' luckily escapes the destruction of the [[Scorpion Fleet Shipyards]] {{TRS|The Plan|Razor|Pegasus}}.
**The Cylons begin landing ground forces on the Colonies {{TRS|The Plan|33}}.
**''Galactica'' engages [[Cylon Raider (RDM)|Cylon Raider]]s and survives with moderate damage and 85 dead {{TRS|Miniseries, Night 1}}.
**Last transmission from the Colonies received by Laura Roslin aboard ''[[Colonial Heavy 798]]'' from a [[Jack|fellow secretary]] {{TRS|Miniseries, Night 1}}.
**[[Case Orange]] contingency mechanism assigns Roslin the office of the President of the Twelve Colonies {{TRS|Miniseries, Night 1}}.
**Roslin gathers stranded civilian and military ships in the vicinity of {{RDM|Caprica}} {{TRS|Miniseries, Night 1}}.
**Commander [[William Adama|Adama]] assumes overall Fleet command and orders regroup at [[Ragnar Anchorage]] {{TRS|Miniseries, Night 1}}.
**Roslin's fleet survives two Cylon attacks and meets at Ragnar {{TRS|Miniseries, Night 2}}.
**''Galactica'' changes from battle stance to civilian protection, and escorts the civilian fleet from Ragnar towards the [[Prolmar Sector]] {{TRS|Miniseries, Night 2}}.
**The Twelve Colonies of Kobol lie in irradiated ruins.  Their military has been utterly defeated and their infrastructure has been crushed.  The result of the engagement is a complete victory for the Cylon forces {{TRS|Miniseries, Night 2|The Plan}}.
**The Cylon occupation of the Colonies begins {{TRS|33|Downloaded|The Plan}}.


=== Season 1 ===
*'''c. Day 950'''
:''See [[Timeline - Season 1 (RDM)]]''
:''This section details the "current day" events aboard ''Galactica'' in the episode "[[Unfinished Business]]." Prior events recalled in the episode are documented in the timeline at Day 420.''


=== Season 2 ===
**The ''Galactica'' crew work out their aggressions in the boxing tournament
:''See [[Timeline - Season 2 (RDM)]]''
**Admiral Adama resolves to begin treating his crew less like family and more like soldiers
**Kara Thrace and Lee Adama fight each other in the ring and reconcile


== 2 ACH to 3 ACH ==
===[[The Passage]]===
The "one year time jump" depicted at the end of the {{TRS|Lay Down Your Burdens, Part II|prose=yes}} occurs during 2 ACH, beginning with the Cylon invasion of [[New Caprica]] as a result of [[Gina Inviere]]'s ''[[Cloud 9]]'' explosion, forcing the subsequent retreat of the last two [[Battlestar (RDM)|battlestars]], [[Galactica (TRS)|''Galactica'']] and [[Pegasus (RDM)|''Pegasus'']].
:''No timeline markers are available for this episode.''


=== Season 3 ===
*The Fleet's food supply is contaminated
:''See [[Timeline - Season 3 (RDM)]]''
*Saul Tigh returns as Executive Officer on ''Galactica''
* Sharon Agathon returns from a recon mission through a dangerous star cluster with data on a [[algae planet|planet loaded with edible algae]]
*''Galactica's'' Raptors successfully escort the Fleet in packs through the disorienting, radiation-laden star cluster, with some ship losses and casualties
*[[Louanne Katraine]] dies


== 3 ACH to 4 ACH ==
===[[The Eye of Jupiter]]===
:''No timeline markers are available for this episode.''


=== Season 4 ===
*'''Resupply mission day 14-15:'''
:''See [[Timeline - Season 4 (RDM)]]''
*The Colonials are preparing to leave the algae planet
**Tyrol finds the [[Temple of Five]]
**A Cylon fleet arrives and attempts to negotiate for the [[Eye of Jupiter]], but both sides are deadlocked; Adama threatens destruction of the Eye if the Cylons attempt to land
**President Roslin's role in hiding [[Hera Agathon]] is revealed to Admiral Adama and Hera's parents
**A secret Cylon Centurion landing party begins offensive operations
**Starbuck is shot down by the Cylon's missile battery on the planet
**A Heavy Raider group heads to the planet
**Admiral Adama, in response to the Cylon incursion, prepares to destroy the planet's continent


== References ==
== References ==
{{reflist}}
<div style="font-size:85%"><references/></div>




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[[Category:Colonial History]]
[[Category:Colonial History]]
[[Category:RDM]]
[[Category:RDM]]
[[de:Zeitlinie]]
[[fr:Chronologie (RDM)]]

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