- 1603年3月24日后的某个时候，日本德川幕府下的织田家武士Toshiro Kago被母船泽塔绑架。
- 7月16日: 室女2号飞船的登月舱英勇11号（英文：Valiant 11）载着U.S.S.A.宇航员理查德·韦德上校，马克·加里斯上校和迈克尔·哈根上校降落于月球表面。这三名宇航员是最早的在地球之外的天体上行走的人类。
- 山岭军事基地的使命改变。由于多余弹药储存过久，已不适用于军事目的，它现在负责这些弹药的非军事化工作。该计划由工业作业指挥部（the Industrial Operations Command (I.O.C.)）与环境保护局（Environmental Protection Agency (E.P.A.)）共同监督执行，以便更绿色、更清洁地销毁过期军火。此任务一直持续至2050年。
- West Tek成立
- 普罗米修斯煤矿，波塞冬能源公司的一个部门，在犹他中部开了一处新的煤矿。煤矿附近建立起了一个叫“鹰岩”的小镇。Prometheus Coal, a division of Poseidon Energy, opens a coal mine in central Utah. A small village opens up nearby. It is called Eagle Rock
- The Tibbets Prison is commandeered by the United States government in association with Vault-Tec and Poseidon Oil to tie into their Project Safehouse. On April 5, 2040, the Secretary of the Army makes the decision to build a new Disciplinary Barracks, with a capacity for 456 inmates. A cost ceiling of $363 million in allocated construction dollars is set. The target budget year for funding this project is fiscal year 2041. Construction begins in the Fall of 2042, with completion projected for the Fall of the year 2045.
- Doctor Morrison Rand was abducted by aliens when he was leaving the campus of Banfield College in Humboldt, Oregon some time after 10:00 p.m., on August 16, 2041.
- 7月: discussions with Vault-Tec to determine space and functional requirements for the new Tibbets facility.
- 9月3日: the Combined Arms Center Commander is given a decision brief of the USDB project, and selects one of three design options for further development. He also requests the Corps of Engineers to research an alternate location for the placement of this facility, since the geological evaluation of the site adjacent to the Trustee Unit revealed unsuitable subsurface conditions. Discussions involving the possible movement of the prison and relocation projects are also discussed, leading to the eventual three-rail system.
- The Great Passion Fruit Famine hits America. People actually notice the taste difference in Nuka-Cola when the flavor was changed.
- The X277 Viper Magnetic Rail Cannon developed for the U.S. Military by West-Tek is deemed too costly to produce on a mass scale and abandoned.
- Seeking to protect business interests and their oil supply, the United States begins to exert increasing pressure on Mexico, citing the political instability and pollution stemming from Mexico as a threat to the United States. Various economic sanctions serve to destabilize Mexico, and the United States military enters Mexico to keep the oil refineries running and making sure oil and fuel continue to make their way north across the border at Mexico's expense. 
- The N99 10mm Pistol becomes standard issue military sidearm following the phase out of the N80.
- A television documentary into the withered husk of the Texas oil fields brings the oil shortage into the American households, and reveals how deep the energy crisis runs. 
- 4月：The Resource Wars begin. Many smaller nations go bankrupt, and Europe, dependent on oil imports from the Middle East, responds to the Middle East's rising oil prices with military action. The long drawn-out war between the European Commonwealth and the Middle East begins. 
- 5月-7月：The United Nations, already suffering, begins to collapse. In a series of heated debates, many nations withdraw from the organization as the U.N. tries to keep the peace. 
- 7月27日：联合国正式解散。 
- 进行最后一次载人登月任务。 
- The widely known Nuka-Cola’s Dazzling Blue bottle color was adopted as standard after market research programs indicated that the blue color was the favorite in 86 people out of a hundred polled. 
- The socially transmitted "New Plague" arises, killing tens of thousands. The United States closes its borders and the first-ever national quarantine is declared. The source of the plague is unknown, but rumors persist that it is a genetically engineered weapon.
- ZAX 1.0 goes on-line, developed by Vault-Tec. Initially a prototype of some of the systems designed to govern the vaults, it is given to the government to help the Department of Energy collect resource data. Within a year, it is taken by the military for plague and tactical research; one version, ZAX 1.2 is constructed for West Tek (below).
- 12月: Like an exclamation mark on the end of a very bad year, a terrorist nuclear weapon destroys Tel Aviv.
- In light of the Euro-Middle Eastern conflict and the plague scare, the United States officially sets Project Safehouse in motion. The project, financed by junk bonds, is designed to create shelters, called Vaults, for the populace in the event of a nuclear war or deadly plague. Construction begins late in 2054 and proceeds rapidly due to advances in construction technology. 
- The West Tek Research Facility starts working on a new virus to kill the New Plague. Their viral research and close ties to the federal government eventually lead to them being chosen for the Pan-Immunity Virion Project twenty years later as well as Power Infantry Armor and laser research
- ZAX 1.2 is brought in to regulate conditions in West Tek. It is not part of the Vault-Tec preservation software, so it does not have any orders to protect humanity after the bombs fall. In the meantime, it calmly calculates data and plays chess with the scientists. Many scientists claim that ZAX is a "big ol' cheater" and draws the game out too much for a computer of his considerable abilities. 
- The Anchorage Front Line is established, as the United States increases its military presence in Alaska to protect its oil interests. The Anchorage Front Line causes tensions in the United States and Canada, as the United States attempts to pressure Canada into allowing American military units to guard the Alaskan pipeline. 
- The first artificial intelligence is born. Limited by memory constraints, its expansion is rapidly halted. The discovery paves the way for future A.I. research in laboratories throughout the United States. 
- Traffic on the streets of the world stops moving. Fuel becomes too precious to waste on automobiles, so alternatives are explored - electric and fusion cars begin to be manufactured, but factories can only make limited amounts while conserving fuel. The U.S. economy teeters on bankruptcy. Pressure on fusion research increases. 
- The Euro-Middle Eastern War ends as the oil fields in the Middle East run dry. There is no longer a goal in the conflict, and both sides are reduced almost to ruin. 
- Many Mormon congregations come together to purchase places in Vault 70, located in Salt Lake City, Utah.
- August: The construction of most Vaults completed, except for Vault 13, whose construction finally gets off the ground...heralding a development cycle that seems plagued with problems. Drills begin in the other cities with completed Vaults, but the increasing frequency of the drills has a "cry wolf" effect, and the turnouts for drills trickle off as the years go on.
- Dr. Willem Clark, a top nuclear physicist in his day, is put in charge of all scientific endeavors at the Reservation. Colonel Green, a career soldier in the U.S. army, is put in charge of security.
- 6月: Due to enormous demands for electricity from a 17+ million population, a nuclear reactor in New York City goes supercritical during the summer of this year, almost causing a meltdown. The near meltdown brings into effect power rationing, and the term "Hot Summer" is used to refer to the New York incident. 
- 8月: Increasing need for mobility in the United States mechanized cavalry leads the military to focus the efforts on creating a man-based tank - essentially, a two-legged walking armored unit: Power Armor. 
- 2065 - 2067: Power Armor research grows and several prototypes are developed, many of which prove to be unworkable in the field. These prototypes pave the way for future advances in military, construction, and fusion technology. 
- The Reservation is given orders to research and produce nuclear missiles that can be fired from an orbiting space platform.
- 春季：As the oil resources dry up across the globe, China's fossil fuel dependency causes an energy crisis in the nation. China, bordering on collapse, becomes more aggressive in its trade talks with the United States. Unwilling to export oil to China, talks between the United States and China break down. 
- 夏季：Adding further insult to the Sino-American relations, the first crude fusion cell is unveiled, one of the results of the Power Armor project. Devices designed for the fusion cell begin to be manufactured. Incorporating fusion power into the general U.S. infrastructure begins, but the process is too slow to supply power to the regions that need it. Nearly eleven years later, few sections of the United States were supplied with fusion power. 
- 冬季：In the winter of 2066, China invades Alaska. The Anchorage Front Line becomes a true battleground.
- 冬季: As a sign of increasing tension between the two countries, Canada proves reluctant to allow American troops on Canadian soil or allow American planes to fly over Canadian airspace. American and Canadian tensions rise, but Canada eventually backs down, and U.S. troops pass through Canada. This sets the stage for the Canadian annexation in 2076
- The U.S. Navy Missile Cruiser U.S.S. Ebon Atoll is accidentally sunk by the U.S. Navy Submarine U.S.S. Interference during the Anchorage Campaign. The Interference mistook the Ebon Atoll for an enemy vessel and shot it with a nuclear torpedo killing all on board. It is one of the worst U.S. Navy disasters since World War II. 
- Resource rationing in Denver causes riots. Midwest U.S.A. and Mexico start having food shortages and can't supply Denver with the food it needs. Food riots occur. National Guard called in.
- With more important things to spend their money on, Poseidon Energy closes the inefficient and dangerous Eagle Rock mine complex and sells it to the U.S. government.
- The first suit of T-45d Power Armor is deployed in Alaska. While lacking the full mobility of future versions, this Power Armor is incredibly effective against Chinese tanks and infantry. Its ability to carry heavy ordnance becomes key in various localized conflicts, and it has the power to destroy entire towns without endangering the wearer. China rushes to create its own versions, but they are many years behind the United States. 
- Senator Todd Peterson decides to build a secret bunker to house himself and his family should war break out. Senator Peterson is a wealthy man in his own right, but lacks the funds necessary for such a project. Through secret dealings with Poseidon Oil and a covert branch of the government known as the Enclave, the final funding for the project is attained. A construction site is chosen in southern Colorado and work begins.
- Canada begins to feel the pressure from the United States military as the U.S. draws upon Canadian resources for the war effort. Vast stretches of timberland are destroyed, and other resources in Canada are stretched to the breaking point. Many Americans refer to Canada as Little America, and Canadian protests are unheard.
- March: Vault 13 is finally completed - it is the last of the Vaults on the West Coast, and drills begin. Due to its late completion, the "cry wolf" effect that hurt the other Vaults is not as pronounced.
- December: Construction of Vault 106 and Vault 108 ends. Vault 108 was in construction for 8 years due to work stoppage.
- The first of the Chryslus Motors fusion-driven cars are developed. Reassuringly big and American, the limited models carry a hefty price tag but are sold out within days. Many Chryslus plants have long since been converted into making military ordnance. 
- The United States' increasing demand for Canadian resources causes protests and riots in several Canadian cities. An attempted sabotage of the Alaskan pipeline is all the military needs as an excuse to finalise its annexation of Canada, which had already begun in 2067.
- Completed B.O.M.B. missiles are sent to different space centers around the U.S. so they can be carried into space and installed into the B.O.M.B. satellites. The process is slow, but it is being carried out fairly regularly.
- August: The Ballistic Orbital Missile Base, or B.O.M.B.-001, is completed and partially functional (for security and maintenance bots) using a temporary onboard generator. The only thing the base needs are the manually inputted final launch instructions and codes, and the main power reactor.
- September 15: As China becomes increasingly aggressive with their use of biological weapons, the United States government felt that a countermeasure was needed. The Pan-Immunity Virion Project (PVP) is officially formed and plans are made to begin experiments at the WestTek research facility in Southern California.
- Negotiations between the U.S. and other world powers come to a dramatic end, with the President walking out of oil talks with the other world powers. After a much heated debate, the President stormed out of the meeting and declared that the last known supply of petroleum will be used exclusively by the U.S. and the U.S. will not sell or trade any oil to outside parties.
- Contrary to their claims of seeking only to retake Alaska from the Reds, American Power Armor units, infantry, and mechanized divisions are deployed to China, but they become bogged down on the mainland, putting a further drain on American resources and supply lines.
- Government decision makers order the dumping of radioactive waste into Eagle Rock's lower mines. Enclave politics help secure a contract for Poseidon Energy to develop and use their AGRICOLA mining robots in the operation of the dumping ground. Not surprisingly, the AGRICOLA lab turns out to be a pretty good bunker as well.
- July: The new Bloomfield Space Center completes construction. The facility’s first task is to complete the space rocket Hermes-13 to fly to B.O.M.B.-001 (originally slated for a Mars mission before new orders arrived). The mission: have the crew deliver and install the base’s main power reactor, manually enter final launch instructions, manual check for safety nets and protocols, and do a manual inspection of the station.
- The Sierra Army Depot A.I. (Skynet) becomes self-aware.
- RobCo Industries copyrights the Unified Operating System. This system is used for operating the Robco terminals. The copyright is renewed for each of the next two years.
- March 21: PVP experiments continue at West Tek with batch 10-011, in the wake of successful tests of the virus on single-celled organisms. Experiments on plant cells are postponed. The pan-immunity virion is renamed FEV - the Forced Evolutionary Virus.
- May 9: FEV experiments continue at West Tek with batch 10-011, in the wake of successful tests on flatworms, the flatworms exhibit increase size and heightened resistance to viral contagions. Experiments with insects have less success, and further experimentation on insects is postponed by Major Barnett.
- June 30: FEV experiments continue at West Tek with batch 10-011, with white mice as subjects. Increased size, muscle density, and intelligence are noted.
- November 9: FEV experimentation (batch 10-011) on rabbits is concluded. Increased size, intelligence, and (this time) aggressiveness is noted. Apparently, it was hard to determine whether the flatworms in the previous experiments were angrier and more violent than normal. Frankly, the researchers cannot be blamed for this.
- REPCONN Aerospace被罗科工业公司收购。
- January 3: A military team under the command of Colonel Spindel is sent to the West Tek research facility to monitor the experiments in the interest of national security. Captain Roger Maxson (the grandfather of John Maxson, the High Elder of the Brotherhood of Steel in 2161) is among the team personnel.
- January 12: Splicing in several new gene sequences into their test virus, dogs are injected with batch 11-101a at West Tek. Although increased strength was noted, increased intelligence was not. Using batch 11-011, experiments are conducted on raccoons. Same results are noted, but the attempted escape of several infected raccoons causes Major Barnett to terminate the escape...and the test subjects. Two pairs of raccoons, however, are unaccounted for.
- January: The United States annexation of Canada is complete. Canadian protesters and rioters are shot on sight, and the Alaskan Pipeline swarms with American military units. Pictures of atrocities make their way to the United States, causing further unrest and protests.
- April 15: Once all secondary tests and studies are done on the test subjects, all dogs from the batch 11-101a FEV tests at West Tek are terminated...from a safe distance.
- 六月：动力装甲的原型机完成，产生了T-51b型动力装甲。这是战前动力装甲技术发展的巅峰，This is the pinnacle of Power Armor technology before the Great War. Many of these units are sent to China, and they begin to carve a swath through the Chinese forces. The Chinese resources are strained to the breaking point, and the supply lines from the nations China has annexed begin to break down.
- August: Food and energy riots begin in major cities throughout the United States. Military units begin to be deployed in cities within the United States to contain rioters, and many temporary jails are constructed. A state of emergency is declared, and martial law soon follows.
- August: Hermes-13 & 14 space rockets are completed and await final funding and the orders to launch.
- October: Production of B.O.M.B. nuclear missiles is put on hold due to budget cuts. The reservation is put on reserve.
- October: Due to the seriousness of world events and the threat of nuclear war, Hermes rockets' launch is postponed while funds are routed to vault technology. Launch is rescheduled for 2077.
- October 4: At West Tek, fifteen chimpanzees are infected with batch 11-111. The most successful test to date, growth and immunities in the chimpanzees surpass all other subjects to date. The military practically drools over the results. Plans are made in secret to begin testing in small quarantine towns in North America, and the Mariposa Military Base construction is sped up in anticipation of moving the West Tek project to a location under military supervision.
- November: Enclave personnel seize control of Bloomfield Space Center and begin researching and developing a way to convert Hermes-13 into a personnel transport to transport important individuals off-planet.
- December: Fifteenth edition of Coping With Mr. Virus! is published by Vault-Tec.
- New Plague hits Denver. Rioters burned down large parts of the city in their fear of contamination and anger at their treatment. Many panicked and fled the city by car, clogging the freeways when they ran out of gas and trapping everyone behind them.
- Gas prices sky rocket with the regular gas price being $1450.99 per gallon and $8500.99 per gallon for premium.
- January 7: Major Barnett orders transfer of all FEV research to the newly-constructed Mariposa Military Base, despite objections by the research team.
- February: FEV Research is leaked to the world through an unknown source. Protests in many major cities and governments around the world, as well as accusations that the U.S. was responsible for the New Plague. FEV is seen as the threat it is, and serves only to fuel tensions. The governments of the world fear what the U.S. is up to. Speculating anything from trying to make a breed of super soldier, to trying to make Hitler's master race, they begin to panic.
- Prepared for a nuclear or biological attack from China, the President and the Enclave retreats to remote sections around the globe and make contingency plans for continuing the war.
- Sometime prior to August 15, General Constantine Chase, the hero of the Anchorage Reclamation, begins testing a virtual reality simulation of the Reclamation at the VSS Facility in Washington, D.C.
- September 6: Technicians at the VSS Facility notice General Chase is making radical, unrealistic changes to the Anchorage simulation. They believe Chase is becoming obsessed with the simulation and is gradually going insane, but refrain from confronting him out of fear that they will lose their jobs to military contractors.
- October 10: Captain Roger Maxson and his men discover that the scientists at Mariposa have been using "military volunteers" (military prisoners who didn't have their brains scooped for use in Brain Bots) as test subjects in their experiments. Morale in the base breaks down, and in light of the mental breakdown of Colonel Robert Spindel stationed at the base, Maxson's men turn to him for leadership.
- October 15: Colonel Spindel commits suicide. All scientists are executed.
- October 20: Captain Roger Maxson, now in control of Mariposa, declares himself to be in full desertion from the army (via radio)...and nothing happens.
- October 21: Maxson orders all families stationed outside the base moved inside the Mariposa facility.
- October 23: A pre Halloween costume show was going to be on later that day, called Freddy's Fear House of Scarlets. The preparations were made that morning.
- 美国东部标准时间09:13：综合作战核探测系统（英文：Integrated Operational Nuclear Detection System，简称IONDS）侦测到四枚疑似弹道导弹发射，美军进入二级战备状态（DEFCON 2）。
- 美国东部标准时间09:17：北美防空司令部（英文：North American Aerospace Defense Command，简称NORAD）核实了IONDS的报告，美军进入一级战备状态，轰炸机开始集结并紧急起飞。
- October 23: The West Tek research facility is hit by warheads, breaking open the FEV tanks on levels four and five and releasing it into the atmosphere. Mutated by radiation, it loses its mutagenic abilities, but it later complicates things for the Master
- October 23: All Enclave personnel leave Bloomfield to either take cover or maintain "hot spots." Sub-reactor is turned off. Bloomfield, B.O.M.B.-001, and Hermes-13 & 14 are completely forgotten.
- October 25: Two days later at Mariposa, a scout in Power Armor (Platner) is sent out to get specific readings on the atmosphere. He reports no significant radiation in the area surrounding the facility.
- October 27: After burying the scientists in the wastes outside of Mariposa, the soldiers seal the military base, then head out into the desert, taking supplies and weapon schematics with them. Captain Maxson leads his men and families to the government bunker at Lost Hills. (This event was called the "Exodus," and the surviving soldiers went on to eventually form the Brotherhood of Steel.).
- Note: Although Maxson's points in his holodisk indicated that civilian personnel (presumably families of the scientists or other civilians not associated with the military) were to remain at the base, whether they did or not is unknown.
- October 30: A week after the initial blast, a black rain begins to fall. The source of the black rain was the massive amounts of radioactive particle debris (mainly soot) from the nuclear firestorm a week earlier. Plants and animals both go rapidly into extinction.
- November: Captain Maxson, his men, and their families, arrive at the Lost Hills bunker a few weeks later, suffering many casualties along the way, including Maxson's wife (but not his teenage son). The Lost Hills bunker becomes the HQ of the Brotherhood of Steel the Vault Dweller finds in Fallout 1.
- The first effects of radiation are seen in the survivors. Widespread mutations occur with animals and humans alike. Those that survive the effects of the mutations are permanently changed. New species are created almost overnight.
- After four years of being trapped in the AGRICOLA lab, one of the two Poseidon scientists dies of natural illness.
- Five years after the Great War, some aspects of the world begin to calm down. Radiation and poison levels are still too high for normal human survival.
- Summer: The city of Necropolis founded by the ghoul survivors of Vault 12 (and the US citizens that fled to Bakersfield when the bombs fell).
- Spring: Set takes control of Necropolis, wrestling control from the original Overseer. The Vault 12 Overseer, not willing to take a dirtnap, is driven north and history loses sight of him.
- After most of the initial survivors in the Reservation succumb to radiation, those "fortunate" enough to not die have turned into ghouls. And after spending ten years underground, they finally come back to the surface. Twelve ghouls, including Dr. Willem Clark, volunteer to search the wastes in the hopes of finding other survivors.
- Of the twelve volunteers to explore the wastes, only one comes back to the Reservation; Dr. Willem Clark. However, he has brought back a few dozen fellow ghouls to seek shelter at the reservation.
- After explaining the hardships and prejudices placed against ghouls by smooth skin humans, the ghouls of the Reservation proclaim Dr. Willem Clark as their leader. Willem further solidifies his place as leader by explaining his plans to one day make the ghouls the rightful and true heirs to the Promised Earth and that becoming a ghoul was the next, logical step in the evolutionary process.
- Dr. Richard Moreau is exiled from Vault City for murder. The circumstances surrounding the murder are unknown, but he changes his last name to Grey and heads south.
- The Hub is founded by a man named Angus, who sets up camp around a filthy oasis in the desert, and he proceeds to begin trading with other settlements.
- Harold rises to the level of a caravan boss in the Hub. His caravans suffer occasional attacks in the wastes, but Harold's caravan outfit survives and prospers... until the mutant attacks begin to pick up a few years later.
- A man named Jonathan Faust leads his group of about 200 people from the overcrowded Vault 15 into the wastes of the outside. Eventually they become a raider band known as the Vipers.
- The Vault City Overseer retires and the Council of Citizens is established. The Council appoints the initial First Citizen.
- May 22: Increasing mutant attacks on Harold's caravans cause Harold to get so upset he finances one of the first adventuring parties of Fallout to try and find out where the mutants are coming from. Consulting with a scientist and doctor at the Hub, a man by the name of Grey, the two of them decide to join forces.
- June 23: Richard Grey's Expedition [including Harold] finds the Mariposa Military Base and the Expedition is scattered and defeated by mutants at the base. Grey is knocked into one of the vats of FEV by a robotic arm, and Harold is knocked unconscious, only to awaken later out in the wasteland.
- June 27: Harold, already mutating, is found by traders and taken back to the Hub. His former caravan partners and employees, horrified by his condition, abandon him and he is soon left.
- July: Richard Grey, now horribly mutated by the virus, crawls from the Vats covered with FEV and in terrible pain. Barely able to think or perceive his surroundings, he crawls into the Vat control room and begins his audio log. He fades in and out of consciousness, sometimes for days or weeks at a time.
- July-November: Richard Grey begins to acclimate to his condition, and begins his first tests of animals by exposing them to FEV. These experiments and his growing awareness lay the foundation for his plans for the Unity and the master race. He takes the name, "the Master.".
- November: The first human victim wanders into Mariposa, and Grey consumes him.
- December: Grey continues his experiments on wanderers that enter Mariposa... with no success. The creations are flawed (due to the radiation counts in their bodies), making them big but incredibly stupid, and Grey consumes them rather than letting them live.
- January: The Master discovers the problem with the influence of radiation on his mutations, and he begins to choose his subjects more carefully. The first classic super mutants are born. He begins his plans to build an army.
- 2103-2130: Throughout this period, the Master begins slowly gathering test subjects, willing or unwilling, from local human stock. The Great Winter of 2130 and the scarcity of human subjects make building his army difficult.
- The Vipers' attempt to raid the Hub is stopped almost solely by Angus. Angus' defense causes the Vipers to retreat north
- Winter: Angus is murdered. Hub is thrown into chaos.
- A band of merchants seizes the water tower in the Hub. They demand anyone wanting water must pay a toll. The Great Merchant Wars begin.
- 2126-2128: The Great Merchant Wars are fought, the Water Merchants seal up the town, but are outnumbered.
- A man named Roy Greene (Justin Greene's grandfather) makes the peace in the Hub and negotiates a settlement. The Hub's Central Council is formed, composed of two representatives from each of the Hub caravan companies. A long period of indecisiveness and meetings maintain the status quo in the Hub.
- The Great Winter occurs.
- 2131-2135: The Master begins ordering his super mutants to gather human stock from caravans. For many years, the caravan disappearances are blamed on monsters in the desert, and even when the abductions begin to occur on Hub caravans, the deathclaws are blamed. The super mutant army grows.
- A faction within the Brotherhood of Steel led by Sergeant Dennis Allen gains strength, and they urge the Elders to let them explore the southeast Glow for artifacts. The Elders refuse, so Allen and his divisionist group splits away from the Brotherhood of Steel, taking some technology and weapons with them.
- Led by Sergeant Dennis Allen, a small team of the Brotherhood of Steel head to the West Tek research facility in search of technological artifacts. They arrive there twenty days later, and are promptly chewed apart by the West Tek's unforgiving automated defense systems. Wounded, Allen begins to suffer radiation poisoning from a leak in his suit. Before he dies, he logs what happened to the expedition into a holodisk then goes to join the Brotherhood in the sky.
- Elder Roger Maxson dies of cancer, and his son, already an accomplished soldier, takes up the role of "General" (Elder) within the Brotherhood of Steel. John Maxson becomes a member of the Paladins, showing tremendous promise as a soldier.
- The Jackals lose a major battle against rival raider clan The Khans, survivors are forced further east.
- The Master begins to mass-produce super mutants. Only about one in six or one in five attempts are successful, and of these successes, only half seem to last to go on to be part of his growing army, called the Unity.
- Vault Dweller born.
- This will vary according to your player character's age in Fallout 1.
- Winter: Raiders begin to form in the region as food supplies run low. The Khans and the Vipers begin terrorizing local settlements.
- Around the early 2150s the Vipers recover from their defeat by Angus at the Hub, replenish their ranks from captured slaves and caravan drivers, and begin to establish a power base in the badlands to the North of the Hub (and south of the Lost Hills Bunker). Driven by a religious frenzy (and the need to provide for their much larger numbers of soldiers and disciples), they begin raiding more frequently than before, attracting the attention of the Brotherhood of Steel.
- As their influence slowly spreads throughout the wastes, the Master finds humans, doomsday cultists, and rather than dip them in the vats, he demands their obedience as spies - their leader is a man named Morpheus, an ex-member of the gang called the Rippers, and he pledges his followers to the Master. Morpheus and his cultists form the future core of the Children of the Cathedral.
- The Brotherhood sends out a few squads of scouts to track the Vipers down - it is more of a training exercise conducted by John Maxson's father, as the Brotherhood is convinced that small detachment of troops in Power Armor would be sufficient to deal with a group of raiders, no matter how large. One Brotherhood squad, lead by Maxson, finds the Vipers. Expecting the raiders to break and run, Maxson doesn't take into account the religious ferocity of the Vipers (or their poisoned weapons), and when a single arrow nicks him with his helmet off, he dies within hours. John Maxson takes up the role of Elder, and Rhombus becomes the new head of the Paladins.
- The Paladins, now led by Rhombus, begin a full scale campaign against the Vipers, tracking them down and wiping out almost all of their members within the span of a month. Some of the Vipers are able to flee north and east into the mountain range.
- Note: According to Chris Avellone's Fallout Bible #6, the Vipers were never heard from again. It was added there possibly because they don't appear in the final game, but it is inconsistent with Fallout 1, where the Vipers are mentioned by several characters (Ian, Aradesh, Killian) as still being around. The surviving Vipers must have therefore been still active in California until at least 2161.
- 2155-2156: After capturing a caravan of vault dwellers, the Master learns the location of the Boneyard Vault, the future site of the Cathedral. He conquers the inhabitants and sets up operations there, and the human cultists begin to use the Vault as their powerbase. Within the Vault, the Master begins to send out patrols to Vault locations in search of these other Vaults.
- The Master sees advantages in establishing a benevolent "religion" (the Children of the Cathedral), and using them as spies in settlements throughout the wastes. Missionaries from the Children of the Cathedral spread slowly across the wasteland, acting as eyes and ears for Morpheus and the Master.
- The Master learns the location of the Bakersfield Vault, Vault 12, and sends a detachment of super mutants there to seize the vault. Many ghouls are snapped like twigs in the attack, and Set finally parleys with the super mutants, telling them that the ghouls are the Vault survivors the super mutants are looking for. The super mutants, angered at failing to find an intact Vault, set up a small garrison at the watershed to watch the inhabitants and ensure Set's... cooperation in the war to come.
- Zimmerman hires a band of mercenaries known as the Regulators to help protect Adytum from the deathclaw and the odd random attack by raiders
- October: A Brotherhood of Steel patrol comes across a dead super mutant in the badlands. They take the corpse back to the Scribes, and Head Scribe Vree begins her examinations of the super mutant.
- Harold appears in the Hub's Oldtown.
- January 4: Vault Dweller visits Scrapheap
- January 5: Someone starts stealing water from the magazine in Vault 13.
- January 17: Vault Dweller reaches the Hub and negotiates with the Water Merchants to deliver water to Vault 13, buying the Vault some time.
- February: Vault Dweller recovers the water chip in Necropolis. Ian is killed by a super mutant and reduced to a cinder, ending his tendency to shoot the Vault Dweller in the back with SMG bursts.
- February 23: Children of the Cathedral send their doctor to Junktown
- March: Super Mutant army attacks Necropolis, killing many of the town's inhabitants.
- March: Vault Dweller defeats the Master.
- April 20: Vault Dweller destroys the Mariposa Military Base. Dogmeat, being colourblind, doesn't recognise a forcefield and charges into it, dying defending his master.
- Tandi unanimously elected President of NCR by the NCR council. As expected, she proceeds to do a fantastic job.
- Fallout Tactics begins. A Midwestern Brotherhood of Steel squad is sent to free the village of Brahmin Wood of raiders.
- Allistair Tenpenny is born in England.
- Enclave works on various new technologies, including Power Armor variations. None of these are much of an improvement over the conventional old Power Armor, and some are actually worse.
- The Midwestern Brotherhood destroys the Calculator, Vault 0's mad AI, defeating his robotic army (estimated end of Fallout Tactics ).
- After years of trying the “natural" way, the ghouls discovered they were indeed sterile. Dr. Willem Clark and Dr. Sebastian begin to devise a plan to create a viable way for ghouls to procreate.
- January 16: After writing his memoirs, Vault Dweller vanishes from Arroyo and is presumed dead. The Vault Dweller leaves the Vault Suit behind, folded on the bed. Some say the Vault Dweller was taken by the sky spirits, others say that the Vault Dweller felt it was time to move on and leave the Elders to guide Arroyo to its destiny.
- Note: Fallout: Brotherhood of Steel takes place some time after this date.
- February 2: The One-Moon (Month) Cycle of mourning for the Vault Dweller ends, and activity in Arroyo begins to return to normal.
- February 2: Final training of the Vault Dweller's daughter for the role of village elder begins. She undergoes a great deal of physical training and tutoring in various sciences, mathematics, and, of course, weapon skills.
- January 31: Vault Dweller's daughter takes her mystic test, a key ingredient of which is several pots worth of hallucinogenic plants from Hakunin's garden. She runs the gauntlet in the Temple of Trials, using her charm to pass most of the tests after her handgun jams (and is ruined) on the first level. She offers numerous criticisms of the test, resulting in many revisions.
- Note: The broken handgun is the one you see on her table in the opening movie of Fallout 2.
- February 2: Vault Dweller's daughter ascends to role of Village Elder. She rules with a steady hand, and her wisdom is greatly respected.
- August 1: Congressman Dick Richardson rises to power within the Enclave, aided by pressure from his father, President Richardson.
- Under Presidential Order, Enclave scientists begin to work on an upgraded version of Power Armor. Many prototypes are developed and tested.
- March 5: Congressman Richard "Dick" Richardson is elected president for the first term of five, through aid and political pressure by his father (the previous President Richardson).
- October: Enclave scientists develop a reliable version of the Mark II Power Armor. The prototype results (and accidents... and explosions... and deaths) are classified by order of the new President Richardson for the sake of morale.
- Vic visits Vault City. Nine months later, Valerie is born.
- The Reservation begins to purchase human slaves from the various tribes around the region. The ghouls trade what weapons they make in their underground smithies for healthy humans. The healthiest are used for the ghoul procreation experiments, while the rest work until they die from exhaustion and disease.
- 3月23日，避难所居民的孙子——获选者出生，获选者父亲的名字没有在部落记录中出现，原因不明，有可能是因为什么事情让部落长老颜面无光，才将记录删除。March 23: The "Chosen One", grandson of the Vault Dweller, is born. The Chosen One's father is not recorded in the tribal records. The reason for this is unknown, but the Elder may have simply been embarrassed.
- Mister Burke is born. Date unknown.
- Valerie is born.
- Mr. Moriarty arrives in America from Ireland. That year his son Colin Moriarty is born
- July: After years of research and experimentation, Dr. Sebastian successfully creates a Born Ghoul through procreation in the Reservation. The human host, like all the ones preceding him, dies during childbirth (evidently hosts can be male or female).
- August: The first successful Born Ghoul. Due to the radioactive chemistry of the ghouls, the first Born Ghoul rapidly grows into adulthood within a month. The Born Ghoul is named Measles due to his large, swollen glands in his jaw. Only three other Born Ghouls will be birthed between this year and 2253. The procreation experiment only has a 2% success rate.
- The ghouls of Capital Wasteland are driven underground by hostile mutants and humans, forming the Underworld.
- Melchior's son is born.
- Jeremy Maxson, the Brotherhood of Steel High Elder, decides that it was time to expand BOS operations into the east. He sends an expeditionary force composed of five paladins to confirm the location of Peterson's bunker. The expedition leader, Andrea Brixley, discovers the bunker, disables its security, and opens it for habitation. For over a decade she and her fellow paladins explore the east and forge relationships with many of the tribes that inhabit the area.
- The Enclave experiments on deathclaws, attempting to create special fighting units for waging war in hostile environments.
- While there had already been a small number of ghouls in the area soon to become the town of Gecko, the population swells and the town of Gecko is formed. The new influx of ghouls bring scavenged technology and know-how, and the power plant in Gecko becomes operational later that year. Vault City looks upon their new neighbors with growing concern.
- July 20: Enclave scouts discover the remains of the Mariposa Military Base and find it partially destroyed (by the Vault Dweller at the end of Fallout 1).
- July-August: Enclave scientists and chemical corps scour the remains of Mariposa, while assault squads comb the desert for slaves they can use to excavate the military base and get to the FEV Vats. One of the squads includes soldier Frank Horrigan, 25 at the time, recently removed from duty on the President's Secret Service detail to take some R&R time in the wastes after some undocumented psychotic blunder or another.
- August: Melchior is captured by an Enclave patrol and becomes part of the slave excavation force at Mariposa.
- September: Enclave construction crews and super mutant slaves begin excavations. They uncover the FEV, and mutations begin to occur in the human workers. Frank Horrigan comes into contact with the FEV and is sent to the Enclave labs for study.
- October: Melchior begins to mutate... but keeps his intelligence and cunning in the wake of the transformation, making him pretty smart for a super mutant. Realizing that the Enclave will kill the super mutants after they get the FEV data, he begins to use his magician talents to hide away weapons for the mutants to defend themselves when the Enclave decides to dispense with them.
- 2236-2238: Horrigan gradually mutates from exposure to FEV, gaining the physique and slow, stupid, single-mindedness of a super mutant. He is kept heavily sedated, operated on, and studied. He is conscious for only brief periods at a time, then quickly sedated after the bloodshed is over.
- January: The Enclave, having obtained the FEV data, abandons the Military Base site after more mutations occur, causing 2nd Generation Super Mutants to arise - the Enclave leaves a single squad behind to wipe out the super mutants, but the mutants, using armaments they have cached in the base during excavation, reduce the squad to ashes after suffering heavy casualties. The remaining 1st and 2nd Generation super mutant slaves decide to remain in the Base, and the group forms a new community.
- The remnants of the Naval Research Institute clear the Mirelurks off the wreck of a beached aircraft carrier that later becomes Rivet City.
- Harold arrives in Gecko, and (with a lot of shaking of his head) he does his best to help the ghouls with the running of the Nuclear Power Plant.
- NCR explorers discover Eagle Rock and quickly realize that it is a source of energy and some water -- albeit a dangerous source. Within the year, NCR miners are there, and more come shortly thereafter. Many of them are dregs/outcasts from other communities. The town of Burham Springs is established by Trent Burham, a wealthy NCR mine merchant.
- January 23: Tests begin to run dry on Frank Horrigan. It is suggested that he be used as a field operative and be used in tests in the wasteland against local populations.
- March 27: Frank Horrigan is manufactured for his new role. A new version of Power Armor is built to accommodate his mass, and he is sealed inside. After a few horrifically successful field tests, Horrigan becomes the Enclave's solution to numerous sticky problems.
- April 25: Inaugural meeting of the Rivet City Council, consisting of Horace Pinkerton, Annette Holmes and Brad Danvers takes place. The city officially gains its name.
- Junktown has become a member of the New California Republic as part of the state Shady.
- 1月：The first samples of Jet begin to arrive in Redding, courtesy of the Mordino family.
- 2月：Vault City rejects offers of an alliance with both the Bishop family of New Reno and NCR.
- 2月：A survey party from Vault 101 led by Anne Palmer scouts the area of Springvale and Megaton.
- 3月：Raider attacks on caravans to Vault City begin.
- 7月25日早上08:24：《辐射2》 开始，获选者进入试炼神殿开始了神秘的测试。
- Herbert Dashwood meets Argyle and steals his girlfriend. They are best friends ever since.
- Colin Moriarty's father is killed by a raider, and Colin inherits his wealth, including Moriarty's Saloon in Megaton
- 5月15日：英克雷将一个编码数列发送至13号避难所，激活其中央电脑，中央电脑随即宣布离开避难所的时机已到。Martin Frobisher gathers the Vault dwellers together for the Fallout 2 intro movie.
- 秋季： 《辐射2》结束，获选者开动破损油轮进入英克雷，毁灭波希登油井平台，杀死美国总统，破坏了英克雷统治世界的计划。.
- Nuclear Nellie, a howitzer style gun capable of firing a nuclear shell, is made functional at the Reservation. A "dirty" shell is created to use on Willem’s enemies. However, since the heavy lift cable is broken, there is no way to bring the gun from its underground lair.
- Jeremy Maxson renames Peterson's bunker after his famous ancestor, Roger Maxson. He then sends a full compliment of troops for occupation. Andrea Brixley is promoted to Elder, given the rank of General, and placed in charge. The remainder of her exploratory team is given the title of Elder as well. It was not long afterward that the war with the New California Republic is announced.
- Myron dies less than a year after the defeat of the Enclave, stabbed by a Jet addict while drinking in the Den. His discovery of Jet was quickly forgotten, and now there is no one who remembers his name.
- The Wright Family turns from criminal activity to legitimate pursuits. Several schools and churches were established in New Reno, along with a law enforcement body that crippled the influence of the families.
- Note: This is one of the possible endings of Fallout 2 and it is not known yet if it will come true or not.
- NCR halts production on the railroad lines. The need for coal diminishes and the powder gangs rise up.
- Graham, Calhoun and Sallow are captured by the Blackfoot tribe for ransom. The young Sallow uses his knowledge to train the tribals in the art of warfare, impressing them enough to become their leader.
- Sarah Lyons is born in the Brotherhood of Steel Lost Hills bunker in California.
- Reilly is born somewhere in the Capital Wasteland.
- Van Buren (not confirmed as canon)NCR 5th Engineering Division blows up Burham Mines, causing incredible fires to break out all over the area, even in veins of coal encased in rock. Many die. Many become gehennas. NCR abandons Burham Springs.
- Van Buren (not confirmed as canon) After coming out of a strange and powerful fever, Jeremiah Rigdon claims that an angel appeared to him in a vision, calling him to be the living prophet of god.
- Hannibal Hamlin becomes a slave at the age of 14.
- Van Buren (not confirmed as canon) Twelve daring people, including Phil, Sparky, and Frank LaFrancis, drift into Burham Springs to start salvaging. Two years after the end of this influx, all are dead except Phil, Sparky, and Frank.
- Van Buren (not confirmed as canon) Back in the West, "the 370 Raid" occurs. Foreman Porter's group try to rob the NCR Storehouse and Bank to seize the payroll to pay his men. They were caught by NCR and ended up "blowing" the vault and totally ruining the future ability to settle the payment problems in the area (exact circumstances are unknown, Porter's group didn't actually steal the money, but it's gone nonetheless). Captured, sold out by Spineless Stan Lowery (a man in the 370 team who didn't participate in the raid because he was afraid they'd be killed trying). Porter still feels guilty about his role in the collapse of the eastern part of NCR, since his actions blew any chance of the economy stabilizing. Porter and his gang arrested and imprisoned in Black Canyon. 
- Van Buren (not confirmed as canon) Almost half of the residents of New Canaan leave because they believe Jeremiah Rigdon is not the true living prophet. They leave with Bishop Mordecai.
- Van Buren (not confirmed as canon) Sulik's sister Kurisu becomes leader of Blackfoot tribe.
- A lucrative slave trade is established at the Reservation with Caesar’s Legions and the Blackfoot tribe. 
- Members from Porter's team escape many times, though there's nowhere to run and they are caught or surrender. At least one escape was planned by NCR Lt. Gov Dodge (Dodge hoped that Porter will loop back to pick up the money from the blown vault, but the escape he arranged only resulted in the 308th getting free, not the 370th, and since Porter didn't steal the vault money anyway he wouldn't know where to find it). 
Summer: The Blue Destiny Brothel, Herbert Dashwood's favourite whorehouse, shuts down when the girls die from a Cholera outbreak.
- Caesar declares himself the son of Mars, Roman god of war.
- Van Buren (not confirmed as canon) The Blackfoots try to take out Phil, Sparky and Frank at Burham Springs twice. Between those attacks, the Vipers attempt the same. Both groups fail.
- Van Buren (not confirmed as canon) Porter's gang (the 370th) and the 308th put on work-release to Denver. The work-release also made more room in the prison for some more dangerous prisoners, as the place was getting overcrowded. The prisoners travel with hobos, dodge tribals, lose about half their numbers (from clashes with slavers, tribals, radscorpions, and other monsters). 
- Harmon Jurley becomes leader of the Paradise Falls slavers.
- Herbert Dashwood is voted "honorary ghoul" at Underworld.
- Van Buren (not confirmed as canon) Belle is born 
- Van Buren (not confirmed as canon) Porter's gang reaches Denver. Goals: Once there, they were to see about scavenging as many building supplies as possible, establishing a track outpost, and pave the way for NCR occupation. They make camp. 
- Dogs overrun the old salvager camp. 
- Van Buren (not confirmed as canon) May 10: Jillian McKinley is apprehended by ULYSSES' robots. The Rusty Hooks lose their best and only mechanic/weapons smith. Sid is "volunteered" to take her place.
- Bloomseer Poplar arrives at the Oasis.
- Stockholm the guard above the Megaton entrance was born this year.
- 15-year-old Scott Wollinski is sold to a caravan merchant by his father, who hopes for a better life for his son. Wollinski would travel with the caravans for few years, working as an indentured servant, until buying his freedom and settling down in Canterbury Commons.
- Van Buren (not confirmed as canon) June 15: Kyle "the Hook" and his Rusty Hooks discover Bloomfield Space Center and declare it their home.
- Van Buren (not confirmed as canon) June 30: Sid figures out how to fire up the sub-reactor. Bloomfield has power once more, but sub-reactor is only operating at 45% efficiency.
- 38 NCR citizens are massacred by Mojave raiders. President Joanna Tibbett is voted out of office by the NCR congress after a "timid" reaction to the massacre, and is replaced by Wendell Peterson.
- President Peterson dispatches three battalions of NCR infantry into the Mojave Wasteland.
- Moira Brown is born in Canterbury Commons.
- Van Buren (not confirmed as canon) October 23: The Prisoner wakes up in the Big Empty .
- Van Buren begins.
- Glowing ghouls start wandering in from Boulder to Denver .
- Subgroup in Denver discovers the Box and plan to seize it for themselves. .
- In response some comments from Hardin, Bombay Jack flips out and goes off on his own, seizing a nearby claim and guarding it with explosives. 
- Van Buren (not confirmed as canon) The Prisoner arrives in Denver.
- Van Buren (not confirmed as canon) October 23: The Prisoner escapes from Tibbets Prison, dooming the world and creating a holocaust of epic proportions.
- Van Buren (not confirmed as canon) October 23: Sentry robots at Bloomfield become semi-active – not moving, but the optical lenses and sensors turn on and start surveying for escaped prisoners from the Big MT. The robots ignore the Rusty Hooks.
- Van Buren (not confirmed as canon) October: Dr. Presper and his NCR followers find security overrides for the turrets and security bots at Bloomfield, as well as the space rockets' launch codes. They invade Kyle's beloved Bloomfield – Kyle and his men do not resist Dr. Presper and his technically more advanced brigade – and launch themselves into space to dock with B.O.M.B.-001. Four NCR soldiers stay behind with the remaining rocket to prevent anyone from launching the second rocket. The Rusty Hooks keep clear of the launch pad and form an "understanding" with the NCR guards.
- Fallout 2 is programmed to ultimately end 13 game years after gameplay starts, so hurry up with that GECK.
- A Brotherhood of Steel squad led by Owyn Lyons is sent to Washington, DC on the East Coast to search for technology and investigate reports of super mutant activity.
- Caesar establishes the first capital of his Legion in the ruins of Flagstaff, Arizona.
- On the way to the Capital Wasteland, The Brotherhood expeditionary force attacks the raider town called The Pitt and razes it to the ground. These events are later known as The Scourge.
- The Brotherhood of Steel expeditionary force under Owyn Lyons arrives in the Capital Wasteland.
- The Capital Wasteland Brotherhood of Steel establishes the Citadel as their main base of operation in the ruins of The Pentagon.
- Silver is born. (Unknown day)
- The child of the Chosen One and either Angela Bishop or Leslie Anne Bishop, aged only thirteen, seizes control of the Bishop Family and leads them to victory over the remaining New Reno families.
- Note: This is one of the possible endings of Fallout 2 and it is not known yet if it will come true or not.
- Allistair Tenpenny hires Tara Fields, Jeff Strayer, Dave, Dukov and Crowley to raid Fort Constantine.
- 7月13日：《辐射3》开始: Lone Wanderer在Jefferson Memorial出生，父亲为James，母亲为Catherine。
- Project Purity被放弃。.
- Amata Almodovar在101号避难所出生。
- Lone Wanderer之父James受到监督者 Alphonse Almodovar的雇用，成为了101号避难所的医师。
- Lone Wanderer在101号避难所度过了1周岁的生日。
- A generator in the Citadel overloads, creating errors in the artificial intelligence routines of the medical robot called Sawbones, giving him intelligence beyond his programming and a disliking for his human masters.
- Amata Almodovar's mother dies from unknown causes.
- Bannon到达铆钉城并帮助城市成为了废都的一个贸易中心。 （或者按照他自己的说法是这样）。
- A 7-year-old girl from Little Lamplight kills a mole rat with a knife as big as her arm, and is named after the weapon. She is considered to be a bona fide celebrity ever since.
- Arthur Maxson is born to parents Jonathan and Jessica。
- Harden Simms出生。
- The Great Khans arrive in the Mojave Wasteland.
- Regulators first appeared in the Capital Wasteland around this time.
- Stanley Armstrong, a Vault 101 technician, loses a copy of Dean's Electronics.
- April to July James, the father of the Lone Wanderer, repairs a BB gun that Jonas Palmer found on the Vault 101 Reactor Level.
- July 12 Stanley Armstrong with Andy's help repairs the Vault 101's water purifier.
- July 13 The Lone Wanderer celebrates his/her tenth birthday in the Cafeteria. He/she receives a Series A Pip-Boy 3000, a Kid's Baseball Cap, A Birthday Poem, a Grognak the Barbarian comic, a sweetroll, and a BB gun.
- July 14 The Lone Wanderer is given his/her first work assignment.
- Pacification of the Mojave: NCR forces under General Kimball destroy the tribes in the Bullhead City area.
- A slave called Hannibal Hamlin escapes from his master。
- Daisy Roe, the sister of Ernest "Uncle" Roe and wife of Louis Pacion is killed in a raider attack on her caravan.
- The Ranger Unification Treaty is signed between the NCR and the Desert Rangers. It is around this time that the NCR moves into the New Vegas area.
- 38 NCR citizens are massacred by Mojave raiders. President Joanna Tibbett is voted out of office by the NCR congress after a "timid" reaction to the massacre, and is replaced by Wendell Peterson.
- President Peterson dispatches three battalions of NCR infantry into the Mojave Wasteland.
- Pacification of the Mojave: NCR forces under General Kimball destroy the tribes in the area surrounding Bullhead City, seizing it for NCR control.
- Three Dog和Margaret共同建立了银河新闻广播电台。
- The New California Republic establishes the Mojave Outpost.
- Johnson Nash and Ruby Nash move to Primm as agents for the Mojave Express.
- Nova moves to Megaton
- Reilly创建了Reilly's Rangers。
- Corporal Sterling of the NCR Rangers is captured and tortured by Caesar's Legion legionnaires. He manages to escape by rolling into the Colorado River down an embankment and is rescued by fellow Rangers.
- Aaron Kimball retires from the military and runs for the office of one of the Hub's governors.
- Wendell Peterson is voted out of office and Kimball is sworn in as the new NCR president, just two months after starting his political career.
- NCR scouts reach Hoover Dam, causing Mr. House to recruit three tribes and recondition them into the Three Families. By the time the NCR reaches the ruins of Las Vegas, they are able to return home with tales of a city of lights in the middle of the desert. Not long after, tourist money starts rolling into the newly-christened New Vegas.
- The NCR reluctantly sign the New Vegas treaty. NCR are allowed to control the Hoover Dam and to set up headquarters at Camp McCarran, while recognizing Mr. House and the three families as the rightful owners of the Strip. 5% of the energy from the dam is transferred to the Strip while the rest goes back to California.
- Hoover Dam restarts and the Strip blazes with light. The first trickle of privileged, curious NCR citizens visits the Strip. The strip opens for business.
- MacCready becomes the mayor of Little Lamplight.
- Hannibal Hamlin finds Lincoln's Head and establishes the Temple of the Union anti-slavery group..
- Stanley Armstrong, a Maintenance Department technician for Vault 101, is diagnosed as suffering from overwork and a lack of sleep by the vault physician James who prescribes aspirin for the ailment.
- Freddie Gomez, a teenager living in Vault 101, is diagnosed as suffering from Vault Depressive Syndrome by the vault physician James who prescribes the anti-anxiety medication Chlorpromazine.
- Amata Almodovar, a teenager living in Vault 101, is examined by the vault physican James with her father, Alphonse Almodovar, present.
- July 27 to August 2 New parts are delivered to Susie Mack's family, a family living in Vault 101, for their malfunctioning heater.
- July 27 to August 2 Jonas Palmer, a clinic technician in Vault 101, gives aspirin to Stanley Armstrong for his headaches.
- August 3 Jonas Palmer performs additional tests on Stanley Armstrong.
- August 3 The Lone Wanderer passes the GOAT.
- August 4 to August 10 The Vault 101 students are expected to have completed their reading assignments in the Big Book of Science.
- Camp McCarran, NCR's headquarters in the Mojave Wasteland, is established. Conflict with the Mojave Chapter of the Brotherhood of Steel begins.
- The NCR government ceases to officially support the Followers of the Apocalypse, and establishes its own Office of Science and Industry.
- Legion scouts report the NCR has occupied and restarted Hoover Dam, restoring electrical power to the Strip. Caesar begins planning war against the NCR.
- 2275-2276: Legion forces gradually assemble east of the Colorado river. The NCR becomes aware of the threat when scouting parties fail to return from expeditions east.
- Benny kills Bingo, and takes over The Chairmen. The Chairmen then start renovating The Tops.
- Maggie's parents die in a raider attack and is rescued by the caravan guard Billy Creel.
- Henry Casdin and several members of the Brotherhood of Steel leave the Citadel and form the Brotherhood Outcasts.
- The Mojave Wasteland Brotherhood of Steel, led by Elder Elijah, are dealt a crushing blow in the loss of HELIOS One to the NCR in Operation: Sunburst.
- October 2: William Brandice moves his family to Grayditch, after leaving Navarro, deserting from the Enclave army.
- November 15: The scientist doctor Weston Lesko moves into Grayditch, moving in with the Wilks family. He soon moves into a shack nearby.
- 8月17日，09:04：James从101号避难所失踪，他的儿子/女儿Lone Wanderer随之来到地表去寻找他。
- Lone Wanderer激活了净水计划，改进型FEV病毒也将由其选择其命运。在其后的断钢中，英克雷的残余在其最后的基地亚当斯空军基地以及Mobile Base Crawler被摧毁后彻底消亡。英克雷成为了无正式组织和领导的散兵团体。 （注：这一事件也可能在2278年或更晚发生，取决于Lone Wanderer花费多少时间用于探索。）
- 根据计划，13号避难所应在这一年开放，但由于需要更换净水芯片，导致13号避难所监督者被迫打开大门，派出Vault Dweller踏上命运的旅程。因此在这个时候，这个避难所的居住者早已被英克雷抓捕过，并且已经得到了自由。
- Harold appears in the Capital Wasteland. He was discovered by several people who began to worship him as a god, and a small and exclusive cult known as the Treeminders began to form in secrecy. Bob began to blossom and many plants grew in this area, which became green with life, a stark contrast to the outer wasteland.
- Caesar's Legion moves into the Mojave, setting up their base of operations at Fortification Hill.
- The Courier delivers a mysterious package containing ICBM launch codes for the local missile base to Hopeville. After dropping it off and leaving, several nuclear detonations begin to occur underground destroying Hopeville and Ashton and several NCR supply lines and land routes by sinking them into the earth. In the aftermath, the land that encompassed Hopeville and Ashton becomes known as the Divide among local tribes and the NCR.
- The First Battle of Hoover Dam takes place. Caesar's Legion forces under the command of Joshua Graham attempt to take the Hoover Dam from the NCR. Although initially successful, the NCR lures the Legion into a trap and sends them reeling. Most of Boulder City is reduced to rubble in the battle. Legate Graham, deemed responsible for the defeat by Caesar, is coated in pitch, lit on fire, and tossed into the Grand Canyon to set an example for others.
- A band of raiders attempt an assault on Megaton but fail when their leader Boppo is shot and killed by the town sheriff, Lucas Simms.
- The Brotherhood Outcasts seek assistance when trying to recover valuable pieces of technology from the Virtual Strategic Solutions facility in the Capital Wasteland. The Lone Wanderer arrives and may assist them by taking part of the Anchorage Reclamation simulation.
- A slave by the name of Wernher travels to the Capital Wasteland from The Pitt by way of a rusty handcart, seeking the help of someone to free his people from their slaver oppressors and encounters the Lone Wanderer, who decides the fate of the slaves and changes the destiny of The Pitt forever.
- Marcus, having gathered a group of other Mariposa super mutants and Nightkins around him, settles down in and around the Black Mountain radio complex, hoping to create a safe-heaven for super mutants.
- Fallout 3 ends - The Lone Wanderer activates Project Purity, either with or without the modified Forced Evolutionary Virus of the Enclave and the Capital Wasteland was changed forever.
- Raven Rock and Adams Air Force Base are destroyed, and the Citadel may also be destroyed (depending on the Lone Wanderer's actions). The Capital Wasteland Brotherhood of Steel begins to distribute aqua pura to a thirsty Capital Wasteland.
- A steamship, the Duchess Gambit, travels down the River Potomac and docks to the southeast of Alexandria Arms in the Capital Wasteland. The ferryman offers wastelanders a chance to travel to Point Lookout. The Lone Wanderer embarks on a journey to seek out pre-War treasures, but instead discovers a feud between two parties from before the War.
- The Earth is saved by the Lone Wanderer from an alien threat when they are captured in the northern Capital Wasteland by an alien mothership named Zeta, taking the control of the ship with an atypical group of survivors from Earth's past, and destroying another alien mothership which was near Zeta.
- Tabitha gathers a group of Mariposa super mutants and establishes the State of Utobitha at the Black Mountain radio complex.
- The NCR massacre dozens of Great Khans at Bitter Springs, in an event known as the Bitter Springs massacre, casting a bad light on the NCR and their presence in the Mojave.
- Following the abduction and killing of four soldiers, NCR troops assault the Great Khans' settlement at Red Rock Canyon and massacre several dozen men, women, and children. This event goes unreported in NCR press.
- New Canaan is destroyed by the White Legs in an attempt to gain enough favor with Caesar's Legion to be assimilated. The surviving residents of New Canaan are scattered across Utah.
- Benny, Jessup, McMurphy, Chance and several other Great Khans travel out into the Mojave Wasteland to ambush the Courier carrying the Platinum Chip.
- September: The prisoners of New California Republic Correctional Facility, under the command of Samuel Cooke and Eddie, over throw the NCR security at the New California Republic correctional facility and begin raiding the surrounding area as the Powder Gangers.
- October 11: Fallout: New Vegas intro - The Courier is ambushed and shot in the head by Benny, left for dead in a shallow, unmarked grave in Goodsprings Cemetery. Victor finds the body and retrieves it, and the Courier makes a miraculous recovery in the care of Doc Mitchell.
- October 19, 08:00: Fallout: New Vegas begins - The Courier regains consciousness and leaves Mitchell's house in Goodsprings for search of revenge against Benny.
- The Courier follows an old radio message broadcasting about the gala in the Sierra Madre, leading them to an abandoned Brotherhood of Steel bunker. Here, they are captured by Dog and taken to the Sierra Madre. In the Sierra Madre, they have to obey Elijah with a group of survivors, but the Courier takes over from Elijah and manages to escape from the Sierra Madre to return into the Mojave Wasteland.
- An expedition of the Happy Trails Caravan Company lead by Jed Masterson for New Canaan by passing into Zion Canyon is about to start and the Courier takes part. In Zion Canyon, all members of the expedition except the Courier are killed. The Courier walks out of the history of the tribes of Zion and shifting the fragile balance of power.
- A strange satellite crashes in the Mojave Drive-in. The Courier arrives and inspects the satellite during the night, which triggers the unique teleporter onboard the satellite and transports them to Big MT. In Big MT, the Courier becomes a cyborg after a science experiment went awry; their brain, heart and spine have been replaced with advanced technologies. The Courier encounters the Think Tank, some of former Big MT executives, asking for the Courier's aid to save them from Mobius. The Courier and Mobius confront and the Courier gets at least their heart and spine back in their body.
- Ulysses meets the Courier in the Divide and a battle takes place. The two couriers fight beneath an ancient flag at the edge of the world, each carrying a message for the other.
- 《辐射：新维加斯》结束 - In the Second Battle of Hoover Dam, the Courier who had cheated death in the cemetery outside Goodsprings cheated death once again, and the Mojave Wasteland is forever changed.
- 10月23日：《辐射4》正式开始 - 唯一幸存者在大战结束210年后苏醒，他离开111号避难所并踏入废土，试图寻找自己的儿子尚恩。
- The leader of the Bishop family of New Reno and the son of the Chosen One dies quietly in his sleep having never known his real father.
- Note: This is one of the possible endings of Fallout 2 and it is not known yet if it is canon
- ↑ MrBrotch.txt . 第1行
- ↑ 辐射4：避难所居民求生指南 . 第464-465页
- ↑ 眺望角载入画面
- ↑ 康科德道路牌
- ↑ 谷仓墓地铭牌
- ↑ 保罗·里维尔故居铭牌
- ↑ 《辐射4》载入画面：钻石城的报社《公共事件报》，名字取自波士顿于1690年第一份发行的报纸。
- ↑ 辐射4：避难所居民求生指南 . 第330-331页
- ↑ Alien Captive Recorded Log 1 in Mothership Zeta
- ↑ 老街角书店铭牌
- ↑ 辐射4：避难所居民求生指南 . 第463页
- ↑ Agatha's dialogue - 第220行： "It was fabricated way back in 1714 by a famous Italian craftsman named Antonio Stradivari."
- ↑ 老北教堂铭牌
- ↑ 辐射4：避难所居民求生手册 . 第452页
- ↑ 《蚱蜢的食粮》
- ↑ 16.0 16.1 16.2 16.3 钻石城内悬挂的宣传标语
- ↑ 17.0 17.1 17.2 Sierra Mission Statement holodisk in Fallout 2
- ↑ 18.00 18.01 18.02 18.03 18.04 18.05 18.06 18.07 18.08 18.09 18.10 18.11 18.12 18.13 18.14 18.15 Reservation design document for Van Buren
- ↑ 19.0 19.1 19.2 19.3 19.4 19.5 19.6 19.7 Museum of Technology in Fallout 3
- ↑ The Valiant 12 flag displayed in the Museum of Technology uses this flag design. The division of the United States into 13 commonwealths was first envisioned by Leonard Boyarsky during the development of the first Fallout.
- ↑ Hubris Comics Press Release in Fallout 3
- ↑ Museum of Technology Computer in Fallout 3 says almost 15 years after 2020, which is interpreted as 14 years here.
- ↑ 23.00 23.01 23.02 23.03 23.04 23.05 23.06 23.07 23.08 23.09 23.10 Burham Springs design document for Van Buren
- ↑ 24.0 24.1 巧手先生设计文件
- ↑ 25.0 25.1 25.2 Tibbets Prison design document for Van Buren
- ↑ 26.0 26.1 26.2 26.3 Sierra Petrovita's dialogue in Fallout 3
- ↑ 27.000 27.001 27.002 27.003 27.004 27.005 27.006 27.007 27.008 27.009 27.010 27.011 27.012 27.013 27.014 27.015 27.016 27.017 27.018 27.019 27.020 27.021 27.022 27.023 27.024 27.025 27.026 27.027 27.028 27.029 27.030 27.031 27.032 27.033 27.034 27.035 27.036 27.037 27.038 27.039 27.040 27.041 27.042 27.043 27.044 27.045 27.046 27.047 27.048 27.049 27.050 27.051 27.052 27.053 27.054 27.055 27.056 27.057 27.058 27.059 27.060 27.061 27.062 27.063 27.064 27.065 27.066 27.067 27.068 27.069 27.070 27.071 27.072 27.073 27.074 27.075 27.076 27.077 27.078 27.079 27.080 27.081 27.082 27.083 27.084 27.085 27.086 27.087 27.088 27.089 27.090 27.091 27.092 27.093 27.094 27.095 27.096 27.097 27.098 27.099 27.100 27.101 27.102 27.103 27.104 27.105 27.106 27.107 27.108 27.109 27.110 27.111 27.112 27.113 27.114 27.115 27.116 27.117 《辐射圣经0》
- ↑ Greta's dialogue in Fallout 3
- ↑ This information comes from Chris Avellone's Fallout Bible timeline. According to the Sierra Depot GNN Transcript holodisk, which Avellone discards as non-canon, as it was supposedly modified by the Sierra Army Depot soldiers, the UN still existed in 2074
- ↑ Capitol Post article in Fallout 3
- ↑ 31.0 31.1 Vault 13: A GURPS Post-Nuclear Adventure timeline
- ↑ The event is mentioned by ZAX in Fallout, while the date is only mentioned in the Fallout Bible timeline
- ↑ 33.0 33.1 Mentioned in a conversation with ZAX in Fallout
- ↑ 34.0 34.1 Tour bot dialogue file from Van Buren
- ↑ Mentioned in the Fallout intro, the date given only in the Fallout Bible timeline.
- ↑ 36.00 36.01 36.02 36.03 36.04 36.05 36.06 36.07 36.08 36.09 36.10 Vault-Tec computer in Fallout 3
- ↑ 37.0 37.1 37.2 New Canaan design document for Van Buren
- ↑ 38.0 38.1 38.2 38.3 《辐射》说明手册。
- ↑ M.A.R.Go.T.'s dialogue in Fallout 3 add-on Broken Steel
- ↑ 40.0 40.1 40.2 40.3 Briefly mentioned in the Fallout Intro with no date. Date is mentioned only in the Fallout Bible timeline
- ↑ This date for the Chinese invasion of Alaska comes from Chris Avellone's Fallout Bible timeline. According to the Sierra Depot GNN Transcript holodisk, which Avellone discards as non-canon, as it was supposedly modified by the Sierra Army Depot soldiers, this happened on October 10, 2077
- ↑ 42.0 42.1 42.2 42.3 42.4 42.5 42.6 42.7 42.8 42.9 Denver design document for Van Buren
- ↑ It is originally said to be the last one, but later ones are seen in Fallout 3
- ↑ Loading screen from Fallout 3
- ↑ 45.00 45.01 45.02 45.03 45.04 45.05 45.06 45.07 45.08 45.09 45.10 Bloomfield Space Center design document for Van Buren
- ↑ FEV Research holodisk in Fallout
- ↑ This information comes from Chris Avellone's Fallout Bible timeline. According to the Sierra Depot GNN Transcript holodisk, which Avellone discards as non-canon, this happened on October 22, 2077
- ↑ Mentioned in the terminals in Fallout 3
- ↑ 49.0 49.1 49.2 49.3 49.4 49.5 49.6 FEV Experiment Disk in Fallout
- ↑ 50.0 50.1 50.2 50.3 50.4 50.5 50.6 50.7 50.8 《辐射》中Maxson上尉的全息卡带日记。
- ↑ 《辐射》中的12号避难所及其居民
- ↑ The West Tek facility is seen as The Glow in Fallout
- ↑ Maxson Log holodisk in Fallout
- ↑ Year: 2078
- ↑ 111号避难所终端日志
- ↑ 56.00 56.01 56.02 56.03 56.04 56.05 56.06 56.07 56.08 56.09 56.10 56.11 56.12 56.13 56.14 56.15 《〈辐射3〉官方游戏攻略》
- ↑ 57.0 57.1 57.2 57.3 57.4 Viper design document by Scott Campbell, from Fallout Bible #6
- ↑ Mentioned in a conversation with Lynette in Fallout 2
- ↑ Mentioned in a conversation with Gabriel, leader of the Gun Runners in Fallout 1
- ↑ Fallout Tactics
- ↑ 61.0 61.1 Hoover Dam design document for Van Buren
- ↑ Mentioned in a conversation with Valerie
- ↑ Vcmainwk.msg
- ↑ Winthrop's dialogues in Fallout 3
- ↑ 65.0 65.1 Pinkerton's dialogue in Fallout 3
- ↑ Rivet City Council Minutes, April 25, 2239 note in Fallout 3
- ↑ Mentioned in a conversation with First Citizen Lynette in Fallout 2
- ↑ Report from first survey party note in Fallout 3
- ↑ Herbert Dashwood's dialogue in Fallout 3
- ↑ Fallout 2 ending
- ↑ Fallout 2 ending
- ↑ 引用错误：无效
- ↑ 73.0 73.1 Hannibal Hamlin's dialogue in Fallout 3
- ↑ Blackfoot Tribe design document/1 Timeline
- ↑ 引用错误：无效
- ↑ Bloomseer Poplar's dialogue in Fallout 3
- ↑ 引用错误：无效
- ↑ 引用错误：无效
- ↑ Scribe Rothchild's dialogue in Fallout 3
- ↑ Paladin Kodiak's dialogue in Fallout 3
- ↑ Scribe Jameson's dialogue in Fallout 3
- ↑ Madison Li's dialogue in Fallout 3
- ↑ Sawbones's dialogue in Fallout 3
- ↑ This date is from the Prima Official Game Guide with the assumption that Amata and the Lone Wanderer are of the same age.
- ↑ Bannon's dialogue in Fallout 3
- ↑ Fallout: New Vegas Mojave Outpost monument plaque
- ↑ 87.0 87.1 87.2 The dates provided in the Guide do not correspond with actual in-game statements (and there are other chronological errors present, eg. the war with the Brotherhood in the Mojave is dated at 2256). For example, Corporal Sterling clearly states that he was one of the first Rangers sent east, before the Army came. Dates have been adjusted to match.
- ↑ Fallout: New Vegas, Corporal Sterling
- ↑ Mayor MacCready's dialogue in Fallout 3
- ↑ Dialogue with Owyn Lyons and Henry Casdin in Fallout 3
- ↑ 91.0 91.1 W. Brandice's terminal entries
- ↑ Springvale raider mining log#Journal Entry #001
- ↑ Point Lookout is released after Broken Steel, and the Fallout official site confirmed that Mothership Zeta was the final adventure of the Lone Wanderer, and so that the order of add-on released is the chronological order of Fallout 3 history.
- ↑ Fallout official site: "The Vault Dweller's final and most fantastical adventure".
- ↑ 95.0 95.1 J.E. Sawyer in Fallout: New Vegas previews
- ↑ Michelle Kerr: "We came here about a month ago, when Primm went to hell on account of the prison break north of there. Found a bin to call home and set up shop."