Console Doom timeline

This article contains the various timelines created by various developers of Doom games. Including iD software, Midway, and Bethesda software and others.

Classic Doom (Original Doom Games)
(Includes Ultimate Doom, Doom II, No Rest for the Living, Final Doom, and Doom 64.)

''Note: Doom does not have clear dates for when events take place. It is implied to take place during early 21st century in a couple of early sources (tie-in novels and SNES manual, and possibly a few other sources), and there are only a few references to amount of time between games. Only the SNES manual gives a 'clear dates' for the start of Doom 1. Otherwise there really isn't much of a timeline to actually list.''


 * 2018 - The military, UAC's biggest supplier, has used the remote facilities on Phobos and Deimos to conduct various secret projects, including research on inter-dimensional space travel.
 * 2019 - The Marine assaults a superior officer, and is transferred to Mars, home of the Union Aerospace Corporation.
 * 2021 - July 1 - DOOMNL 01-D19305-1C is published.
 * 2022
 * March 15 - Mars receives a message from Phobos base stating that the base is under attack and requesting backup.
 * A few hours later, the marines land and try to stop the invasion. The Marine is ordered to stay behind and protect the perimeter. The marine forces are wiped out or turned into monsters. Planetary authorities send the final Marine the new DOOMNL 01-D19505-1D replacing earlier manual (now including briefing for the Marine, and images from the invasion captured by remote video cameras. The video data was computer analyzed by the UAC and the results are provided "here and only here"). The Marine leaves the escape pod vowing to destroy the invasion force.
 * Doom begins
 * Doom II begins
 * No Rest for the Living begins.
 * The Plutonia Experiment begins.
 * 2023 (or at least a year after Plutonia Experiment )
 * TNT: Evilution begins.
 * The fatigued marine is decommissioned, and the military DOOM Episodes are classified. The UAC's bases are sealed, and quarantined by radioactive bombardment.
 * Years Later
 * Doom 64 begins. The Doom Marine is re-commissioned to stop a new threat, from a deepspace installation he once fought the Demons at.

Doom 3
(Doom 3, Resurrection of Evil, The Lost Mission, Doom Resurrection)


 * 1996 - The first Quakecon Games is held.
 * 2095
 * October 29 - Construction of Phase One, Alpha Labs begins on Mars.
 * 2104 - The explorations of the caverns in 2104 led to the discovery of ancient artifact codenamed U1, the Soul Cube, along with stone tablets written by the ancient Martian civilization.
 * 2115 - Martian Civilization was first discovered.
 * 2118 - Steve Jenson is born.
 * 2120 - Construction on Mars City begins.
 * 2130
 * July 17 - The Alpha Labs are completed.
 * 2141 -
 * January 15 - Alpha Labs Introduction video is made.
 * K. Tang is transferred to Mars.
 * 2139 - Project Mercury, built in Delta Labs, becomes operational.
 * 2142
 * Mach-2 Chain Gun Briefing video is produced.
 * 2144
 * January 1 - Research on a partial Imp remains.
 * February 5 - Hell Knight (partial) research.
 * July 28 - Series 3 Plasma Gun information video is released.
 * November 2 - A Living Dead is recovered and researched.
 * 2145
 * March 5 - Mars Research Facility One wecome video is released by Human Resources.
 * March 11 - Marine Command Briefing video is created for incoming transfers.
 * April 5 - UAC engineer Samuel Harding completed repairs on the Monorail.
 * April 15 - Hydrocon PR video is produced. Molecular Fuel Storage Compactor PR vide is produced.
 * June - 21:00 hours UMT. Experiment in the Delta Labs triggers an unknown event, resulting in the systematic invasion of the entire facility. Marine forces are deployed to hot spots around the facility, with many teams encountering heavy resistance. Bravo Team was ambushed in EnPro facility while searching for survivors. There was only one survivor of the team.
 * July 12 - A Imp is recovered and researched.
 * August 6 - Simon Garlick is assigned to Expedition 14A-2. Heather Elaine Earl Besch
 * August 8
 * Simon Garlick "misplaced" the rest of Expedition 14A-2 after entering into Hell.
 * Archaeologist Richard Davis discover a compelling discovery from the Site 3 ruins that the original inhabitants of Mars evacuated to Earth.
 * August 10 - Simon Garlick discovers that his team are killed and mutilated by demons. Richard Davis reports his findings on Site 3 to Malcolm Betruger.
 * August 21 - Ancient Civilization video is produced. AM3 Series Portable Power Plant video is produced.
 * September 5 - Charles Hollies, director general of the EAP, announces that all environment processors be brought offline in the general area of Site 2.
 * September 8 - Pierce Rogers
 * September 14 - Andrew Chin records a complaint regarding to UAC Security harassing his research staff in the Alpha Labs.
 * September 19 - Frank Cerano thinks on Malcolm Betruger's ideas for sustaining teleportation portals.
 * September 23
 * The UAC Board unanimously approved a resolution for a full operations review of the Mars Research Facility at the bequest of Elliot Swann.
 * Charlie Haskell reports progress in Chamber 3 in the Delta Labs.
 * September 24 - James Holiday, a transport controller, reports recent transport issues concerning better ways to provide protection for Site 3 artifacts.
 * September 25 - Tony Bates, tired to go through the code for the door systems Central Processing, issue a backdoor code into the systems.
 * September 27 - Revenant research
 * October 1
 * Nick Sadowayj, a HAZMAT specialist, conclude that the Martian atmosphere is wreaking havoc on the exhaust valve seals in the standard Number 5 disposal drums.
 * A order of DragGonFeets action figures is accidentally shipped to the Exis Labs. The action figures are accidentally broke by Joel Stangl.
 * October 2
 * Malcolm Betruger writes to William Banks that cargo bearing religious artifacts arriving from earth are to be directly sent to the Delta Labs.
 * Elizabeth McNeil writes to Elliot Swann that she is very pleased of his request to investigate the UAC on Mars and her subsequent reassignment from Mars to Earth.
 * October 3
 * Malcolm Betruger attempt to sway Elliot Swann from conducting a full operations review on Mars City.
 * Bernice Tooley writes to Harold Munch about a employee toying with a Grabber gun in Exis Central Operations.
 * October 4 - Harold Munch writes to Bernice Tooley on having caught technicians toying with the extra chainsaws in Communications Transfer.
 * October 5
 * William Banks reports the recent power grid changes have caused many non-critical systems to malfunction, all of which is due to Malcolm Betruger's 'optimizations' to the energy stores in and around the facility.
 * Maintenance Safety Video is produced, Specimen Stasis Museum video is produced, Soul Cube video is produced. Tablets video is produced.
 * October 6
 * Central Security Authority writes to Karl Cullen concerning a automated security turret gun will be installed at the main entrance to Delta Lab due to the increased sensitive nature of the experiments and security problems.
 * Dmitry Lebedev received the latest shipment of the MK7 space suits.
 * October 7 - Ben Wolfe reports of "unauthorized transmissions" uncovered in the off-site redundant logs.
 * October 8 - Chase Higgins spends 20 minutes calming his co-worker Morgan, who sworn to have seen a huge bloody eyeball stare at him through the glass shielding in the Particle Exchanger.
 * October 9
 * Chase Higgins writes to Nasir Adil about the strange occurrences surrounding the Particle Exchanger.
 * October 10 - BFG 9000 Briefing video is produced.
 * October 11 - Martianbuddy.com
 * October 12 - Chief Engineer Allen Rhodes reports significant progress in Energy Processing Sector One.
 * October 13 - The first violent incident at the Exis surface tunnel. One of the construction workers, Bill Sanders, was offloading a shipment of steel supports when a procurement manager stopped him. In the heated conversation that followed, Sanders grabbed a nearby pickaxe and lunged at the manager. Luckily the argument beforehand generated a sizable crowd, and when Sanders attacked the manager, a number of men were able to subdue him.
 * October 15
 * Frank Cinders describe his first experience of surviving through Hell.
 * Tony Bates resume his investigation into case A-10982.
 * October 16 - Armor Corp, First Platoon and First Science Team are completely wiped out on their second excursion into Hell. Han Lee is in charge of writing up their reports and sending this information back to their next of kin on Earth.
 * October 17 - Pierce Rogers
 * October 18
 * Frank Delahue reports the constant and increasing load from the Delta Complex that is causing havoc on Energy Processing.
 * Robert Cody reports in his audio log that working in the caverns underneath Delta are too dangerous and regards to hearing "howlers".
 * Steve Bryant writes to Dmitry Lebedev regarding to the tight security in the Exis Labs.
 * October 19
 * Grant Baston record on a alarming number of reports of unexplainable incidents in the Mars City Underground.
 * Larry Bullman notes that he is coming closer to decipher the glyphs on the Soul Cube and confirming the possibility that the artifact is a weapon.
 * October 20
 * William Banks reports on a alarming number of missing personnel.
 * Phil Wilson witnessed the third test through the teleporter in three weeks.
 * Han Lee report in his audio log that another group of researchers were sent to Hell two days ago and they failed to return at their scheduled time.
 * October 22 - Andy Cavazos report to construction supervisor Travis Folsom about a series of very unusual seismic activity (which should not exist on Mars) that collapsed a number of foundation piers at Exis Research.
 * October 23 - Gary Ross sends a reminder to Delta Security that the new Automated Defense System, at the Delta Labs entrance, is fully operational.
 * October 24
 * Eric Nelson writes a report to Bernice Tooley on the delays complicating Exis Labs. Reclamation problems continue to plague the main processor in Energy Processing. Jack Smith makes his report on the number of accidents in Alpha Labs.
 * Henry Nelson makes a request that a security team make a thorough check of the EFR area after reports of ghostly voices are heard in the area.
 * October 25 - Mathew Morton suggest to Steve Hammer of locking up the weapon lockers after the violent suicide of Private Swensen.
 * October 26 - Henry Nelson writes to Michael Abrams concerning on the reports of strange noises heard in the Alpha Labs that are frightening his staff and request a security detachment to do a sweep of the area in Alpha Sector 4.
 * October 27
 * Chris Vargas changed the security code of his display cabinet per accordance to Central Security.
 * Andrew Chin announce preparation for Football Sunday.
 * October 29 - Peter Raleigh report that there has been no success to treat the Mars personnel of their dementia and finding no evidence for its cause.
 * October 30 - Staff Sergeant Bill Tyson announce of new troops that will be arriving to Mars and doubling security. Anthony Garza, Paul Simons
 * October 31 - Halloween is celebrated on Mars City.
 * November 1
 * Start of Safety Awareness month.
 * Mark Lamia files a complaint on the incompetency of his staff in the Alpha Labs.
 * November 2 - Allen Rhodes, Travis Folsom, Steve Jenson medical report.
 * November 3
 * Theresa Chasar reports that the ammo storage in the Mach-3 Plasma Gun has far exceeded her and her research team's expectations.
 * Nasir Adil reports of increasing level of random and unexplained violence in the Exis Labs.
 * November 4 - Jeffery Moen
 * November 5 - Chris Vargas reports on the initial testing on the primary alignment module indicated excessive stress fracturing. Vargas immediately discontinued the tests until the module is repaired.
 * November 6
 * Jenny Lin broke into a supply cabinet containing emergency weaponry supplied to the local security teams. For reasons unknown she then became hostile and killed two security officers. Another security officer was injured while bravely putting himself in harms way. Technician Lin was also killed.
 * November 8 - Bradley Martin prepares a message to the Service Sub-Level Staff regarding to the Jenny Lin incident.
 * November 9
 * Dr. Marcus Caseon sends his audio reports to Earth regarding to an assault on his life by a disturbed patient.
 * Bradley Martin announce to the Service Sub-Level Staff that a full investigation of the Jenny Lin incident is currently under way.
 * November 10
 * Maintenance technician Adam Berneche hears strange whispering that are nowhere to be found.
 * Robert Thompson complains about a potential cover up in the Jenny Lin incident.
 * November 11 - Scott Johnson, a pump specialist, writes to a fellow employee about a unknown creature that was reportedly seen in Sector 2 of the Recycling Plant.
 * November 12
 * David Robbins of Industrial Complex writes to Marcus Stanton regarding to a shipment error of several crates of chainsaws.
 * Nasir Adil received word from Central Authority about the upcoming visit of Counselor Elliot Swann. He also notes that due to the violent assaults in the Exis Labs the civilian staff have grown wary of one another. Furthermore, weapons are turning up missing in the security checkpoints.
 * November 13
 * Administrator Leslie Waters writes to Phil Anders that all storage cabinets are given limit access to senior level staff in order prevent a Jenny Lin incident.
 * Elliot Swann writes to Nasir Adil and heed his concerns on the Exis Labs.
 * November 14
 * Ian McCormick file a report on his studies on the Soul Cube in which he discover its use as a weapon "to repel whatever type of creatures" that invaded ancient Mars.
 * Ray Gerhardt notifies Duncan Mathews that he is leaving Mars and UAC. Robert Finch, Data-File AR-U1
 * November 15
 * The Doom Marine arrives on Mars on Transport 4409 at 6:18 MC, he was transferred as punishment for assaulting a superior officer for ordering his soldiers to fire upon civilians, and to replace another soldier. He and his body cast were shipped to Pearl Harbor, while the Marine were transferred to Mars, home of the Union Aerospace Corporation.
 * DarkStar is scheduled to return to Earth destination Burns Flat, OK at 18:55 MST.
 * Engineering manager Frank Delahue writes to Daniel Young that he is considering on a promotion for him and replace a engineer in Reclamation.
 * Duncan Mathews request weapon and armor from UAC Security due to his concerns on the strange incidents in Mars City.
 * Ian McCormick records in his video disk on human teleportation experiments.
 * Richard Meyers (Teleportaiton Experiments video)
 * Allen Rhodes and his team barricade themselves in a control room in Sector One.
 * +6 hours post invasion, Bravo Team is ambushed, Bravo Marine (ID# 6703x-02) is the only survivor.
 * November 16 - Elliot Swann, Ron Ridge, Valuable Sacrificial Pointers
 * November 20 - The Recon Zulu marine team found only one survivor, a Marine Corporal. Important UAC personnel such the company's lawyer and counselor Elliot Swann and his bodyguard Jack Campbell, who arrived hours before the outbreak to make an assessment of the whole Mars operation and enact damage control if necessary, were found dead. Master Sergeant Thomas Kelly and other Delta Labs scientists were also found dead. The marine team had no information regarding the fate of Dr. Malcolm Betruger, the chief scientist of Delta Labs who - unknown to them - had become the demon Maledict.
 * November 21 - Ionized Plasma Levitator Briefing video is produced.
 * November 22
 * Expected arrival of T4315 at 06:00 MST  from Lunar 1.
 * November 26
 * Expected arrival of F36 at 14:30 MST.
 * November 29
 * Expected arrival of T4500 at 06:00 MST.
 * December 6
 * Expected arrival of T4800 at 06:00 MST.
 * December 12 - Sturton docked vacation time of anyone caught playing too much Super Turbo Turkey Puncher 3.
 * December 27
 * DarkStar scheduled to make it to earth 13:00 CST.
 * 2146
 * May 1 - An orbital probe detects a faint unidentified signal broadcast from the abandoned Site 1 Complex.
 * August 6 - Mars mission Goals & Safety video is produced.
 * August 8 - The UAC announces the renewal of its Mars research program. Dr. Elizabeth McNeil is chosen to lead the primary assessment team.
 * September 12 - Elizabeth McNeil welcomes personnel to the Site 1 Expedition.
 * November 27: UAC Lead Technology Officer releases the Ionized Plasma Levitator Briefing video.
 * 2147
 * Central Senate projected to cut deficit in half by this year.
 * January 6 - Bernard Fresko, Roberts
 * January 8 - Bernard Fresko
 * January 10 - Bernard Fresko
 * January 12 - Bernard Fresko
 * March 10 - Ron Gibbons, Nathan Reynolds, Ronn Jolson, Viktor Kharkov
 * March 11 - Preston Glenn, Kleinberg, Mac Smith, James Owens, Chance Glasco, Nicolas Haag
 * March 12 - Ryan Okeefe, Ian, Preston Glenn, Stocker, David Edens
 * March 13 - Marcus Tanner, Viktor Kharkov, Gregory Martin, Elizabeth McNeil, Preston Glenn, Fred Grossman, James Owens, Elizbeth McNeil, Keith Noordzy, David Edens, Nicolas Haag, Kelly Garland
 * March 14 - Marcus Tanner, Jack Martin, Sean Weston, Gregory Martin, Stewart Jackson, Viktor Kharkov, Steven Crane, Elizabeth McNeil, Ron Gibbons, Evans, Sean Gibson, Sparks, James Carnagey, Fred Grosman, Keith Noordzy, Ronn Jolson, Dr. Cloud, Patrick Hook, Mitchell.
 * March 15 - Sean Weston, Gregory Martin, Viktor Kharkov, Stewart Jackson, Jake Hernandez, Steven Crane, Leo Avery, James Carnagey, Elizabeth McNeil, Sparks
 * March 16 - Stewart Jackson, Steven Crane
 * March 17, 2147
 * Resurrection of Evil begins.
 * Jake Hernandez

Doom RPG
(Doom RPG, Doom RPG II, Doom II RPG Comic, Wolfenstein RPG, UAC Website )

''Note: Doom RPG only has a few given dates most of them are taken or based on dates from Doom 3 including a tie in UAC website made for it and inspired by Doom 3 Novels (the website also introduces more information about Doom 3 related characters such as Ian Kelliher and his father both from the novels). The exact date for when Doom RPG begins is not given, but appears to be set in late 2145 (the UAC website itself is under 'lockdown' from the events from the games Doom RPG/Doom 3). In addition there are some tie-in connections between Doom II RPG and Doom Resurrection (another Doom 3 spinoff game), but the date for that game can be found in the Doom 3 section above. Furthermore the Doom RPG website seems to indicate that Doom 1-3 also appears in this timeline as well, and the first Doom RPG shares the same character. There is also some crossover between Lost Mission and Doom RPG II.''
 * 20th century (c. 1940s) - Wolfenstein RPG
 * 1993 - The date that the original Doom was released, its setting and scenario is strangely similar to events that will happen in the future at least a hundred years later.
 * 2015 - Union Aerospace Corporation is founded by Thomas Kelliher on Earth.
 * 2025 - UAC makes its name in the famous Joint Mars Expeditions.
 * 2112 - First structure of the first permanent Martian settlement is built, in what is known as Sector 4 (it is the oldest human colony on the planet).
 * 2114
 * Dr. Jensen received his Ph.D from Union States Institute of Technology, Northeast (USITNE).
 * October 10 - Birth of Ted Brown II.
 * 2122 - Dr. Kelvin begins working for the UAC.
 * 2138 - Dr. Jensen begins working for UAC's Advanced Research Department.
 * 2142 - Dr Jensen begins working on Mars.
 * 2143
 * Dr. Geurard joins the teleportation research team.
 * December 22 Chainsaw scheduled for refurbishment the following year. Zachary wishes everyone Happy Holidays.
 * 2144 - Union Aerospace Corporation introduces their new website.
 * January 1 - Chainsaw is repaired.
 * January 8 Director Castle orders everyone not to tend to anything in the Atrium 02 until they find out what has killed everything.
 * January 12 - Xanax captures specimens following primary portal grid powerup. He successfully suspends them in stasis for further study.
 * January 13 - Zanax at the Lunar Outpost receives confirmation from Dr. Geurard on Mars that he has encountered similar fauna in his research.
 * January 16
 * M. Burns asks Chris to see what can be done about a unit. He couldn't touch the Echo Sierras until his new parts arrived from Earth.
 * J. Klein sees pressure anomalies in the coolant tanks at Cichus, caused by recent power spikes.
 * January 21 - Zachary looks for inconsistent behavior in computers at Tychus after reports.
 * February 4 - Zachary can't calibrate flow meters until Mixom tech gets down and serves a tank.
 * February 5 - Zanax at Keplar Site finds that the creatures are highly resistant to pain and injury, which has made specimen acquisition troublesome. It has been difficult acquiring them without killing them.
 * February 6 - Zanax research continues. He discovers from field reports that the creatures exhibit varying tolerance for different types of weapon attacks. He indicated that further research would be needed to discover most efficient way of subduing the creatures.
 * February 7
 * Third repair work order put in for the elevator in Keplar Site. It still hadn't been fixed.
 * Xanax Zanax on the Lunar outpost classifies specimen as an "imp" or possibly a "Gwocklego" according to his assistant.
 * February 8 - Zanax discovers that imp is particularly resistant to stasis suspension, but system is stable, but that that researchers should be careful when handling..
 * February 12 - J.Klein sees intermittent heavy loads on the power griad, but isn't able to find the source yet.
 * February 26 - Scientists in the Greenhouse at Keplar Site on the moon manage breakthroughs.
 * February 27 - Cargo personnel begin reporting that their Manifest Database is having issues. A new power supply is ordered to see if it will fix the problem.
 * March 3 - R. Zachary installs new systems on the UAC Lunar Outpost, and Rhoomba 5000.
 * March 10 - Upgrades completed by Zachary. Everything checks out ok. He made his reports to tech 009 (Chris Sukut).
 * March 17 - Strange things begin happening to machines on the Lunar Outpost.
 * March 24 - Air, water and septic life supports still functioning but odd data reports. C. Sukut calls in a specialist. Zachary has gone missing.
 * October 10 - David Kramer forgets to send a birthday present to Ted Brown II.
 * 2145
 * Union Aerospace Corporation updates their website again.
 * Dr. Nadira joins the Mars Outpost.
 * October - Caldex is hired to work on the Lunar Outpost..
 * October 10 - Ted Brown II receives a birthday gift from Kramer, its hidden in secret room.
 * Date Unknown - The Doom Marine (known as B.J. Blazkowicz (Doom RPG)) investigates strange reports going on at the Mars Outpost. The UAC marines are involved in the Mars Incident when demons take over the base. He defeats the diaboloical Dr. Kronos and his Cyberdemon creation in a showdown with the legions of Hell. At least according to UAC propaganda, there were known survivors from the incident (it is not clear where the Marine ended up).
 * Most of the UAC website is temporarily secured. The Earth Assemblies Secretary of Security has classified some content pending its investigation into the UAC's involvment in recent events on Mars.
 * 2146
 * November 20 - Stan Blazkowicz, O'Riley, and Major Morgan travel to Tycho Station on the Moon, teleports to UAC Administration Headquarters on Earth, and through Hell, and saves the universe from demons, at one point even defeating the Harbinger, another Cyberdemon his ancestor had defeated centuries before.

Doom 2016
​''Note: Most of these dates are also listed with the designation "MTC". This is a reference to "Coordinated Mars Time". '' Some additional dates appears in Art of Doom, some of these dates appear to be from earlier concepts and in some cases shifted about in the final game see below.
 * 21st Century
 * Early; Water is discovered on Mars. Very little happens in way of colonization, except exploration over the next century.
 * Late; Advanced Rocket Launcher is developed.
 * 2019 - Samuel Hayden is born.
 * 2095 - The Argent Fracture is discovered. Argent plasma was discovered in a trench on Mars by an expedition from the SS Amundsen.
 * 2096 - The Union Aerospace Corporation established an outpost on Mars to extract Argent plasma from the Argent Fracture.
 * 2122
 * March 10 - A statue of the Praetor Suit was excavated (Artifact U9) from Site 3.
 * 2124
 * November 16 - Two Ancient Sentinel statues were excavated (Artifact J46) from Site 1.
 * 2127 - The Argent Tower is completed.
 * 6 Months Later - Samuel Hayden transfers his mind over to a cyborg to continue his existence, after his body breaks down due to Stage 4 Cancer.
 * 2136 - The Advanced Research Complex is completed.
 * 2143 - During one of the first teleporter explorations, the Corrax tablets are retrieved from Hell in a UAC Automated Survey.
 * 2145
 * 128 - The first Project Lazarus Manned Expedition is sent to Hell. The expedition ends with complete loss of human life, but achieved its mission. The sarcophagus of the Doom Marine is recovered from Kadingir Sanctum.
 * 2146
 * Industrial accident related deaths in the Foundry dropped significantly thanks to new UAC safety protocols where employees exposed to dangerous materials are sent to the Lazarus Labs.
 * 351
 * The first Project Lazarus Tethering Operation is conducted.
 * Pinkies are discovered for the first time.
 * The "vade mecum" compendium is recovered from the Umbral Plains containing information on the Aranea Imperatrix.
 * 2147
 * 016 - The second Project Lazarus Tethering Operation is conducted. The expedition ends in an confrontation with the Hell Guard.
 * 2148
 * 177 - The second Project Lazarus Manned Expedition is sent to the Great Steppe. The expedition ends with similar losses. The petrified remains of a Baalgar demon is recovered.
 * 2149
 * c. February - The Argent Facility - UAC base had its last accident.
 * October - Doom 2016 Begins.
 * December - Indentured servants on the offworld Tei Tenga Mining Station were replaced with robotic workers, optimal output expected to return to normal by this date.

Ages

 * First age
 * Second age
 * Third age
 * Fourth age

Doom 3 novels
''Note: The Doom 3 novels and Doom 3 game have very different dates for when the events of the story take place. The novels place the outbreaks earlier in the year during March 2145, where as it was November in the game. Other details throughout are very different than in the game as well (including number of individuals who landed on Dropship, the number of survivors, as well as characters who do not appear in the game, and the final outcome of the Marine). However it is notable that at least some of the original material from the novels had influence on Doom RPG's extended lore (some of that information can be seen in its own section above).''
 * 2-1,000,000 B.C. - Ancient Martian civilization is built.
 * 400,000 B.C. - Height of the Martian civilization.
 * 90,000-10,000 - Ancient languages develop on Earth, some may have originated from Mars.
 * 1944 - Global warming begins changing the Earth until it is unrecognizable in 2144.
 * 1962 - A sci-fi movie "To Serve Man" about the 1950's is made.
 * 2078 - Destruction of the old Pentagon. A new building is designed to replace it in Wyoming.
 * 2095 - Great medical breakthroughs are developed over the next half century.
 * 2126 - Military Council Ruling is enacted.
 * 2135
 * 2144
 * April 27 - Dr. Kellyn McDonald's folder is checked and opened by Betruger, and then closed and locked.
 * February 5 - Kellyn McDonald
 * March 11
 * ​March 13
 * ​March 14

Art of Doom (2016)
Note: The book also mentions "AE" designation along with the "MTC" designation but there is no explanation (it is used for the 1366 date, and just talks about it being in UAC's archives).
 * c. 149 - First recorded trans-dimensional encounters with demons and humans apparently on Earth.
 * 1366
 * 88 - First time demonic races were documented by humans (this may also be associated with Argent D'nur).
 * 2049 - Plans for the colonization of Mars begins. UAC, Mixom and I/O Logistics lay down the foundation of a new civilization on Mars.
 * 2100
 * 000 - Early tethering operations firsthand discover possibility of species-demon hierarchy.
 * 2115 - A region known as the Well is discovered on Mars.
 * 2117 - Argent facility construction.
 * 2127 - Argent facility is completed on Mars. Samuel Hayden dies.
 * 2136 - Advanced Weaponry Division is completed.
 * 2143 - UAC automated survey.
 * 2144 - Early manned UAC Expedition to Hell.
 * 2145 -
 * 2146 -
 * 118 - Twins demon is discovered.
 * 351 - Pinkies discovered.
 * 385
 * 2147
 * 016 - They recover a hell warden.
 * 2148
 * 139 - Doomed UAC Trans-Dimensional Expedition most of the explorers were set upon by Barons of Hell.

Doom (2005 film/novel)
Note: Most of the specific dates only appear in the film version, but a few additional dates including characters ages can be interpreted from the novel version from films dates.
 * 1986 - Todd Carmack was born.
 * 2026 - Archaeologists working in the Nevada desert at Papoose Lake discover the Ark portal to a ancient city on Mars. Grimm's parents were among the first scientists to travel to Olduvai on Mars.
 * 2027 - The Kid is born.
 * 2036 - Last time John Reaper saw his sister, before she travelled to study on Mars.
 * 2046 - Research has gleamed no results. Film/Novel begins.

Quake series

 * The Arena Eternal is an extradimensional structure created by the Vadrigar and populated with the greatest warriors in all of time and space. The Doom Marine, and other survivors of Phobos invasion: Crash, and Phobos were brought there from their eras to fight.
 * Ranger is brought in from his own era to fight as well.
 * 21st Century - The Global Defense Force, or GDF, is a supranational paramilitary organization, formed in the mid-21st Century from a large pool of national military organizations and relief agencies, to combat increasingly severe weather events, other natural disasters and terrorist campaigns, as well as to keep the peace in historically unstable regions such as the Middle East. It was created shortly before the Strogg invasion of Earth. The GDF is a fencible military, as opposed to the Space Marine Corps which is expeditionary.
 * The Strogg invaded Earth in the mid-21st Century in search of biological components. The Strogg invaded the Earth in the middle of its 21st Century period, taking its inhabitants completely by surprise. Their large invasion fleet arrived in orbit over the world seemingly out of nowhere, and its ground forces quickly proved themselves a dire threat to the existence of Mankind. By the mid-21st century humanity is fighting for its survival against the hostile alien threat seeking to end the Strogg once and for all by invading their homeworld.
 * Doom 3 references to Quake: Quake-43, Quakecon Games and Hunter (character).
 * The "Armstrong" was an Orbital Space Station in low orbit around the Earth. During the Strogg invasion of Earth, it was used by the U.A.C. to study and store creatures and weapons developed on Mars. When the Strogg invaded Earth, the station had been turned into an Orbital Defense Platform, but it was ultimately taken down by the Strogg. During this incident, Kane found an old U.A.C. weapon which he used to survive. He turned out to be the only survivor of this attack, but United Nations kept him quiet about this incident, leading to rumors that the weapon wasn't all he had found.
 * Doom imagery appears in Quake III Arena. The image of a Lost Soul on the lower side of Anarki's board. Another typical Doom image (Demonic head in a pentagram) can be seen on the back of Biker's jacket. There are also several images of the Icon of Sin appearing as wall decorations on some of the maps.
 * BFG 10K (the next model after BFG 9K) appears in Quake II and Quake II Arena.

Doom Bible
(Includes all events described or mentioned in the Doom Bible document by Tom Hall) The Doom Bible may of be some interest to individuals looking into the history of Doom's development. While the unused storyline doesn't have any dates to make a specific timeline (other than characters ages) there is at least a detailed list of events.


 * Doom Bible