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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
**''Galactica's'' last [[Viper Mark VII]] squadron is destroyed
**A Colonial battle near Virgon ends with the total loss of the remaining Colonial Fleet
**Battlestar ''[[Pegasus (RDM)|Pegasus]]'' luckily escapes the destruction of the [[Scorpian Fleet Shipyards]] ([[Pegasus (episode)|Pegasus]])
**''Galactica'' engages [[Cylon Raider]]s 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==
<blockquote>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.</blockquote>
==="[[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]]'' crew members 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 and shoots Commander Adama at point-blank range
==Season 2==
<blockquote>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.</blockquote>
==="[[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]])
**[[Gaius Baltar]] shoots [[Crashdown]] 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 and attempts to commandeer supplies by force
**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)|Resistance]])
*'''Day 54:'''
**Commander Adama awakens
**Roslin escapes from ''Galactica'' ([[Resistance (episode)|Resistance]])
*'''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 [[Farm]]
** Cally Henderson is thrown into the brig for thirty days ([[The Farm]])
*'''Day 62:'''
**Kara Thrace is rescued by the Caprica Resistance
**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 aboard the ''[[Astral Queen]]''
**Roslin orders Valerii thrown into the brig
**Commander Adama promotes Captain [[George Birch]] to be the new ''Galactica'' [[CAG]]
*'''Day 64:'''
**Roslin's expedition begins search on Kobol for the [[Tomb of Athena]]
**[[Elosha]] dies
**Adama decides to reunite the Fleet and begins preparations for searching Kobol for Roslin's party
===[[Home, Part II]]===
*'''Day 65:'''
**Commander Adama's party finds and joins with Roslin's party
** [[Tomb of Athena]] is found and data gathered
**Roslin reestablished as lawful President, Fleet reunified
===[[Final Cut]]===
*'''Day 75:''' [[D'anna Biers]] produces a documentary aboard ''Galactica'' on the crew
===[[Flight of the Phoenix]]===
<blockquote>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]]. However, In "[[The Farm]]," Commander Adama gives Cally Henderson a 30 day sentence on Day 61, the same day he resumes command of the Fleet. It is likely that Henderson's release marks day 91. Precise date stamping is problematic regarding most other events outlined in the episode.</blockquote>
*'''Day 91:'''
**[[Cally Henderson]] is released from the brig
===Between Days 91 and 175===
*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]]===
<blockquote>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 as there is no information to discern a date.</blockquote>
*''Galactica'' encounters the battlestar ''[[Pegasus (RDM)|Pegasus]]''
*Admiral [[Helena Cain]] assumes fleet command
*'''Day ~175:'''
**[[Galen Tyrol|Tyrol]] accidentally kills ''Pegasus'' Lieutenant [[Alastair 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
**President Roslin promotes William Adama to Admiral
===[[Epiphanies]]===
*'''Day 189:'''
**''President Roslin is near death''
**A [[Demand Peace|Cylon peace movement]] arises in [[The Fleet (RDM)|the Fleet]]
**The Cylon fetus is spared
**Cylon fetal stem cells used to cure President Roslin
**Baltar gives his nuclear warhead to the [[Demand Peace]] movement
===[[Black Market]]===
:''No timeline markers are available for this episode.''
*Commander [[Jack 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]]===
<blockquote>The originally aired episode contained an error in the form of a second time stamp title card which said "ten weeks ago" refereing to Boomer's death and resurrection, which placed the events of the previous episode, "[[Resistance (episode)|Resistance]]," ten weeks prior. This was corrected to "ten weeks later" for the DVD release and subsequent airings, dating Boomer's death ten weeks after "Zero Hour", the attack on the Colonies. However, even this date may be incorrect for Boomer was killed on approximately day 53, which is just over 7.5 weeks from Zero Hour, not ten. While these inconsistencies within the episode makes the time of events problematic, given what was established before with the downloading process i.e. if not automatic it happens within a few hours at most, and even taking into account the flawed dates, [[Caprica Six]] and [[Sharon Valerii|Boomer]] where resurrected well before the birth of [[Hera Agathon]].</blockquote>
*'''Day 1 (Flashback Zero Hour: Caprica Six is killed in a nuclear blast wave ([[Miniseries]])):'''
**Caprica-Six is [[Resurrection (RDM)|resurrected]]<ref name="downloaded">As alluded to by the future [[Sharon Agathon]] in "[[Scattered]]" after [[Kara Thrace]] killed a [[Number Six]] unit in a fight in the [[Delphi Museum of the Colonies]] on Caprica. She relates that the dead Six is downloading right now and probably reporting their position: "Her consciousness is being downloaded into another body right now. And when she wakes up, she'll tell them  exactly where we are." From this we can infer that the process from death to resurrection is usually very short, measured in minutes if not seconds normally, hours at most if there are mass deaths, such as the parking garage explosion in "Downloaded" after Caprica Six killed the [[Number Three]]: "Boomer: How long till she downloads and tells them what happened? - Caprica Six: We had a lot of people in the cafe. At least 36 hours till they get to her. Long enough." These facts considered, it is a virtual certainty that Caprica Six resurrected on the same day of the attack and even more so in the case of Boomer. There likely were no deaths of other Cylons at the time of Boomer's death unlike when the Colonies were attacked and some Cylon agents deliberately stayed behind knowing they will resurrect in anycase.</ref>
*'''Day 53 (Flashback: Cally Henderson kills Sharon "Boomer" Valerii ([[Resistance (episode)|Resistance]])):'''
**Boomer is resurrected<ref name="downloaded"/>
*'''Precise dates to be determined:'''<ref>While the dates in this episode are contradictory, given that the second title card is most likely wrong even after the "correction", the [[Number Three]] unit's comment regarding Starbuck that "She was o­n Caprica a couple of weeks ago. She escaped with the help of another Sharon." could be one placement of events on Caprica in the parking garage a couple of weeks after Starbuck's escape from Caprica on day 62, making the parking garage scenes, if it could be assumed that a "couple of weeks" to be two weeks, to be roughly at day 75 and contemporary with "[[Final Cut]]". Another comment by the Three Unit earlier in the episode also provides a time frame. As they sit in the café on Caprica, just before the explosion, Caprica Six states (falsely) that Boomer asked her to help her move out of her apartment. The Three responds: "You know what? Which is what we've been asking her for weeks. I was kind of hoping that you'd see the light after talking to our friend here." "Weeks", not months or days but weeks, and that could be from two to four weeks. However, at four weeks or more than that, it would be most likely be couched in the term of a month. Boomer very likely went home to her apartment right after being resurrected on day 53 to be somewhere familiar. This time frame fits with Three's comment of Starbuck escaping a couple of weeks prior. Three's café statement would place the scene within weeks of Boomer's ressurection, aproximately three weeks earlier, again making the scenes roughly contemporary with "Final Cut". Alternatively, one could consider Number Three's comments errors, but the only thing that contradicts Three's  café and garage comments is the second title card that has been proven to be mistaken once, and very likely twice.</ref>
**A [[Number Three]] "D'anna Biers" unit tasked Caprica-Six to help Boomer adjust to her Cylon nature.
**Caprica-Six and Boomer resolve to persuade the Cylons to adopt a new approach in dealing with the Colonials.
*'''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 occurred on Day 270.</ref>
**President Roslin, in secret from Admiral Adama, has Hera's death faked and the child hidden as an adoption by [[Maya]].
===[[Lay Down Your Burdens, Part I]]===
<blockquote>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.</blockquote>
*'''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 revealed as 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, assuming settlement began on Day 300:
:''The flashback sequences from "[[Unfinished Business]]"  occurs 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 military service 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


''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 421:'''
**Admiral Adama and Laura Roslin find time together on New Caprica to [[New Caprican loco weed|smoke]], drink and relax briefly
**Kara Thrace and Lee Adama have sexual intercourse
**Kara Thrace marries Samuel Anders, as a consequence Lee Adama and Kara Thrace avoid speaking to each other
**Commander Adama proposes to Dualla


*'''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>
*'''Between c. Day 421 and c. Day 660:'''
*'''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)}}.
** Lee Adama and Anastasia Dualla marry and remain on ''Pegasus''
*'''69 years BCH:'''
**[[Sharon Agathon]] and Karl Agathon marry and remain on ''Galactica''
**[[Saul Tigh]] supposedly born (defined by deleted scene in "[[Valley of Darkness]]" concerning the ''[[Brenik]]''). This is actually a fabrication by [[John Cavil]].
** 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


===First Cylon War===
*'''c. Day 660, 360th day since settlement; assuming settlement began on day 300:'''
:''See [[Timeline - Caprica (RDM)]]''
**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 arrive in orbit and occupy New Caprica
**''Galactica'' and ''Pegasus'' escape with the remains of the Fleet to parts unknown


*'''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.
=="[[Battlestar Galactica: The Resistance]]"==
*'''ca. 58 BCH:'''
**[[William Adama]] born in [[Qualai]], {{RDM|Caprica}} {{TRS|Hero}}. He is named for his deceased older brother {{CAP|Apotheosis}}.
*{{inlineref|52 BCH|52 years BCH}}:'''
**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===
*'''Between Day 660 and Day 794:'''
*'''37 BCH:''' William Adama enlists as merchant marine and serves aboard inter-colony freighters ("Scattered," Adama's dossier).
**[[Nicholas Tyrol]] is born
*'''37 to ca. 30 BCH:'''
**[[Kara Thrace]] is kidnapped and forced into a marriage-type arrangement with [[Leoben Conoy]], whom she kills at any opportunity
** 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.
**A resistance movement is formed and led by [[Saul Tigh]], [[Galen Tyrol]] and later [[Samuel Anders]]
**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.
** Tyrol and Tigh have been organizing a budding resistance movement
**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.
**New Capricans are searched for hidden weapons
*'''ca. 30 BCH:'''
**The Cylons form the [[New Caprica Police]]
**Cavil murders model [[Number Seven]], Daniel, out of jealousy by poisoning the amniotic fluid in which the Seven copies were maturing. 
*Duck refuses to work with the resistance, choosing to spend more time with [[Nora]]
**The Final Five are murdered by Cavil and their consciousnesses are [[boxing|boxed]].
*After some debate, the resistance leaders choose to hide weapons in the [[Temple|Temple of Artemis]]
**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.
*During the night, Tigh, Tyrol, Jammer, and Barolay disguise the weapons in the temple's altar
**[[Saul Tigh]] is resurrected and introduced to the colonies as a military officer with false history of fighting in the war.
**Cally Tyrol and Nora are at the temple
** [[Ellen Tigh]] is resurrected and introduced into Colonial society sometime thereafter.
**The Cylons attack the temple, killing Nora
*'''ca. 28 BCH:'''  
**Duck is physically sickened by the news of Nora's death
** [[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]].
**Tigh, Barolay, and Jammer discuss the effects of the attack, which has brought about positive effects for the resistance
** 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>
**The general population has started to side with the resistance and 1,000 people protested outside ''[[Colonial One]]'' over the attack on the temple
*'''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>
**Since the attack, recruitment has become easier, with 150 Colonials signing up
*'''ca. 26 BCH:''' [[Lee Adama]] born. <ref name = "leezak"/>
*Nicholas Tyrol has his [[dedication ceremony]]
*'''ca. 24 BCH:''' [[Zak Adama]] born. <ref name = "leezak"/>
**Tyrol and Tigh discuss the arrest of Jammer by the Cylons
*'''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).
**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
*'''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:'''
==Season 3==
**Last significant [[FTL]] jump recorded in ''Galactica'''s logs (Miniseries).
 
**[[Tom Zarek]] imprisoned for blowing up a government building on [[Sagittaron]] {{TRS|Bastille Day}}.
*'''Prior to the Season 3 premiere, after ''The Resistance'':'''
*'''17 BCH:''' William Adama assigned to the battlestar ''[[Atlantia (RDM)|Atlantia]]'', where he makes his 1000th Viper landing (Adama's dossier, "[[Act of Contrition]]").
**[[Saul Tigh]] is captured by the Cylons and detained. One of his eyes is literally ripped out by the Cylons
*'''13 years BCH:''' William Adama assigned as executive officer to the new battlestar ''[[Columbia (RDM)|Columbia]]'' (Adama's dossier).
**Jammer and Duck enlist with the [[New Caprica Police]]
*'''11 years BCH:''' [[Laura Roslin]] begins her career in politics {{TRS|Litmus}}.
 
*'''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>
===[[Occupation]]===
*'''9 years BCH:''' William Adama promoted to commander and assigned as commander of the battlestar ''[[Valkyrie]]'' (Adama's dossier, "Hero").
 
*'''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]]).
*'''c. Day 794 (494th day since settlement, 134th day of occupation):'''
*{{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>
**Colonel Tigh is released from the detention center
*'''5 years BCH:'''
 
**[[Laura Roslin]]'s last breast exam prior to her cancer diagnosis {{TRS|Act of Contrition}}.
*'''c. Day 795:'''
**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>
**[[Duck]] suicide-bombs a NCP ceremony
*'''4 years BCH:'''
**Felix Gaeta secretly provides the jamming frequencies to allow wireless communication to breech Cylon interference
**[[Kara Thrace]] graduates from the Colonial Fleet Academy {{TRS|Maelstrom}}.
**The resistance establishes communication with [[Margaret Edmondson|Racetrack]]'s Raptor
**[[Socrata Thrace]] dies of stomach cancer (Maelstrom).
 
*'''3 years BCH:''' [[Felix Gaeta]] assigned to ''Galactica'' (Miniseries).
*'''Sometime before the episode, "Precipice:"'''
*{{inlineref|2 BCH|2 years BCH}}:
**Laura Roslin is arrested by the Cylons
**[[Caprica-Six]] begins residence on Caprica {{TRS|Downloaded}}, first encounters Dr. [[Gaius Baltar]] (Miniseries).
 
**[[Sharon Valerii]] begins service aboard ''Galactica'' {{TRS|The Farm}}.
===[[Precipice]]===
**Zak Adama dies in a flight school accident (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]]
**Lt. [[Kara Thrace]] is re-assigned from flight school to ''Galactica'' {{TRS|Act of Contrition}}.
 
*'''1 Year BCH:'''
*'''c. Day 796:'''
**Last time William and Carolanne Adama speak (Miniseries).
**Leoben Conoy introduces [[Kacey]] to Kara Thrace
**Carolanne Adama gets engaged (Miniseries).
**Another suicide bomber damages the power substation
**[[Anastasia Dualla]] last visits her home {{TRS|Final Cut}}.
**The Cylons force Baltar to sign an execution order
*'''Between 5 and 1 Year BCH:'''
**Ellen Tigh steals a map marking the location for a secret rendezvous with ''Galactica's'' rescue coordination party
**''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.''
**Roslin and others on the execution order are arrested and later driven to the [[Pergamus Flats]]
**[[Laura Roslin]]'s father and sisters are killed by a drunk driver.
**Sharon Agathon's coordination party lands, makes contact with Anders' party, and are soon attacked by Cylon forces
**[[Kara Thrace]] and [[Lee Adama]] first meet.
**Shots ring out at the group execution site, where Jammer frees Cally Tyrol before the shooting begins
**[[Caprica-Six]] finds [[Julius Baltar]] a new home in a retirement center which encourages horticultural activities.
 
**[[William Adama]] ponders retirement at a security firm but rejects the job in disgust when forced to take a polygraph test.
===[[Exodus, Part I]]===
***[[Saul Tigh|Saul]] and [[Ellen Tigh]] celebrate his (and their own) supposed retirement.
 
**[[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.
*'''c. Day 796:'''
**[[Laura Roslin]] joins [[Richard Adar]]'s presidential campaign.
**Tyrol's group ambush the firing squad and save Laura Roslin, Tom Zarek and many others
**[[Gaius Baltar]] promises [[Caprica-Six]] full access to the Colonial Defense Mainframe if she helps him work on the [[Command Navigation Program]].
**Sharon Agathon's marines save Agathon and the resistance group
 
*'''c. Day 797:'''
**Number Three visits an [[Dodona Selloi|oracle]]
**The Cavil mortally wounded at Tyrol's ambush returns to ''[[Colonial One]]''
**Sharon Agathon infiltrates a Cylon facility and obtains the Colonial ships' [[launch key]]s
**Ellen Tigh is exposed as a traitor
**Admiral Adama initiates the New Caprica rescue
 
===[[Exodus, Part II]]===
 
*'''c. Day 798:'''
**Ellen Tigh is poisoned by her husband for her treason
**The [[Battle of New Caprica]] begins; the Fleet is reunited and New Caprica is abandoned
**[[Pegasus (RDM)|Pegasus]] is destroyed during the battle
**[[Maya]] dies
**[[Hera Agathon]] is found by the Cylons, who also abandon New Caprica
 
===[[Collaborators]]===
 
*'''c. Day 800 (Day 3 of the Second Exodus):'''
**James "Jammer" Lyman, and 12 others before him are executed by [[The Circle]]
**Gaius Baltar awakens aboard a Cylon basestar for the first time three days after fleeing New Caprica
**New President Tom Zarek names Roslin as his Vice President, and later resigns to return Roslin to power
**Felix Gaeta is tried and convicted by The Circle but is spared when incontrovertible proof of his innocence emerges just in time.
**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 beacon]]
** 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 his 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, find the probe, and realize 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; the [[Battle of NCD2539]] begins
**Admiral Adama soon aborts the mission
** Aboard a 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 about Novacek and possible culpability for the [[fall of the Twelve Colonies]]
 
*'''c. Day 936:'''
**Saul Tigh tells Novachek about Adama's action in his failed mission
**Novacek attacks Adama and tries to kill him but is stopped by Tigh


== 1 ACH ==
*'''c. Day 937:'''
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:
**Number Three begins a series of suicides to experience visions about [[Final five|five figures in white robes]]
**Adama submits his resignation to Roslin but she refuses to accept it


=== Return of the [[Miniseries|Cylons]] ===
*'''c. Day 938:'''
*{{inlineref|0 BCH|Zero Hour}}:
**Novacek is sent off to a berthing and counseling on another ship
**The Cylon fleet gathers at a staging area close to [[The Colony]] {{TRS|The Plan}}.
**Tigh and Adama begin to reconcile
**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 ===
==="[[Unfinished Business]]" Present day events===
:''See [[Timeline - Season 1 (RDM)]]''


=== Season 2 ===
*'''c. Day 950:'''
:''See [[Timeline - Season 2 (RDM)]]''
<blockquote>This section details the "current day" events aboard ''Galactica''. Prior events recalled in the episode are documented in the timeline at Day 420.</blockquote>
**''Galactica's'' crew work out their aggressions in a boxing tournament
**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 (after the events of '''The Passage'''):'''
:''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 of six heads to the planet
**Admiral Adama, in response to the Cylon incursion, prepares to destroy the planet's continent
===[[Rapture]]===
:''No timeline markers are available for this episode.''
*This episode commences immediately after the final scenes in '''The Eye of Jupiter'''.
**Five of the six [[Heavy Raider]]s heading toward the algae planet turn back.
**Admiral Adama, in response to most of the Raiders turning back, stands down from the threatened nuclear strike in an unspoken compromise.
**[[Gaius Baltar|Baltar]], [[D'Anna Biers]] and a [[Cavil]] land on the planet in the sixth Heavy Raider.
**Athena persuades her husband [[Helo]] to shoot her. She downloads into the Cylon fleet to reclaim [[Hera]]. Boomer threatens to kill Hera. [[Caprica Six]] kills [[Boomer]] and escapes with Hera and Athena to Galactica. Caprica Six is taken prisoner.
**[[Dualla]] makes contact with [[Starbuck]]. They repair the [[Raptor]] and both return to Galactica.
**Lee Adama and Samuel Anders fail to prevent Baltar, D'Anna and Cavil from entering the [[Temple of Five]].
**Tyrol fails to destroy the temple.
**The star goes nova.
**D'Anna has a vision in which she sees the [[Final Five]] and dies.
**Tyrol captures Baltar and returns to the ''Galactica'' with him.
**The nova destroys the algae planet. ''Galactica'' jumps and rejoins the fleet.
**The entire Three line is [[boxing|boxed]], including D'Anna.


===[[Taking a Break From All Your Worries]]===
== 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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