
1980 A.D.
Thomas Light and Albert Wily graduate MIT, both receiving degrees in robotics and AI systems. Wily graduates as Valedictorian of his class; Light becomes Salutatorian.
1988 A.D.
Dr. Light has become an independent roboticist, supplying industrial and domestic robots to companies and individuals alike. Using the funds to construct a larger laboratory for himself, which he soon integrated into his home outside Westchester, New York, he begins working on prototype designs for more advanced robot AI. After hitting a hurtle, he consults Dr. Wily, who has been contracting his services out to the U.S. Government, with limited success; though he's managed to sell a few of his designs, the government generally views them as too aggressive for practical use. Wily has become slightly embittered by this, but gladly accepts his associate's request for assistance.
1995 A.D.
Though both Drs. Light and Wily have continued their prior business practices, they've made enormous progress in terms of their AI designs. Dr. Light begins to integrate the new designs into his latest batch of robots, crediting Dr. Wily for his help. Though Wily accepts Light's gratitude, several failed contract negotiations over the past seven years have started to make him resentful of his counterpart.
2000 A.D.
Dr. Light asks permission from Dr. Wily to make some of their programming methods public for use by other roboticists. Dr. Wily agrees, though his more arrogant side fumes over the decision.
2001 A.D.
Having successfully finished their most recent AI experiment late in the year, Light and Wily begin design and construction of a single robot to test their findings with, of human design; they designate this design a "human replica android." Dr. Wily becomes aggravated as his robotics business flounders, overshadowed by Dr. Light's. Light offers to make Wily a full partner in his own business; Wily declines.
2002 A.D.
Construction of the prototype human replica android is completed by mid-June. Though their first two attempts at activation fail due to the robot's uncontrollably aggressive personality, the third attempt is a success. The robot is designated Blues, though Dr. Wily appropriately nicknames him 'Protoman.' Dr. Light attributes Blues' initial problems to a flaw in the guidance system, which Wily was in charge of programming. Though angered by this accusation, Wily says nothing of it. Later in the year, the International Robotics Commission is formed, as are the Laws of Robotics, which are quickly made known to roboticists worldwide.
2003 A.D.
The doctors are comissioned to build two robots--a male and a female--for a private businessman, desiring someone to present as his son and daughter. Dr. Light willingly accepts, and though he and Dr. Wily are currently in the process of building two more human replica androids with the same specifications as Blues, Dr. Light sees this as an opportunity to work on a new experimental type of AI system that he and Dr. Wily had been developing in their spare time. This circuitry is referred to as 'free-will circuitry;' its intent is to emulate the human thought process, thus creating robots that require no programming and mature like a human child (though theoretically faster). The doctors agree to split the project in half; Dr. Light takes up constructing the male robot, while Dr. Wily builds the female one. The robots are designated X and Zero, respectively.
2004 A.D.
Dr. Wily has finally been embittered to the point where his resent for Light has consumed him. While Dr. Light works on finishing the second and third HRAs, Dr. Wily leaves, taking many of their collective designs, Blues, and the half-finished Zero with him. Several weeks after his associate's unfortunate disappearance, Dr. Light finishes the second and third HRAs, naming them Rock and Roll in respect to Blues. Dr. Light is forced to cancel the job for the businessman that hired him to create X and Zero, though he keeps the unfinished X and continues work on him.
2005 A.D.
Early in the year, Dr. Light creates six more robots with Blues' specifications--though none are technically HRAs--to be contracted out for industrial use. Days after their creation however, Dr. Wily and a reprogrammed-and-heavilly-armed Blues break into Dr. Light's lab in the middle of the night and steal the six new robots, as well as Rock and Roll. Wily quickly reprograms the six industrial androids to use as weapons, though Rock manages to free himself and escape with Roll before Wily can do them any harm. Dr. Light, fearing what Wily would do with the six other robots, studies the modifications Wily made to Blues and subsequently integrates them into Rock; Rock is thereafter called 'MegaMan,' a reference to Wily's nickname for Blues. Before too much longer, Wily starts sending out Dr. Light's robots to terrorize New York City, presumably in an attempt to discredit him. Though reluctant to fight his 'brothers,' MegaMan uses his new-found combat capabilities to dispatch them; Dr. Wily unfortunately escapes.
2008 A.D.
Wily still hasn't given up his quest for revenge against Dr. Light, though it's escalated into more of a bid for world domination by this point, as Dr. Wily slips further and further into madness. In his fourth attempt, he kidnaps the daughter of renowned Russian roboticist, Dr. Cossack, and uses her as blackmail, forcing Cossack to build a set of robots to attack Dr. Light with. MegaMan quickly dispatches the robots, and upon confronting Dr. Cossack, finds out that Wily is the mastermind behind the attack. After learning this, MegaMan helps Cossack rescue his daughter, thusly foiling Wily's plans. Wily unfortunately escapes again. Blues, however, is recovered by MegaMan and taken back to Dr. Light's lab to have his original programming restored.
2011 A.D.
Wily is finally captured and imprisoned by MegaMan; however, he had the foresight to create a set of robots that would activate and seek him out if not contacted by him for six months. While trying to stop these robots, MegaMan is confronted by a HRA calling himself Forte. Though Forte claims to have been trying to stop Wily from escaping, MegaMan and Dr. Light learn later, after he destroys Light's lab, that Forte is in fact one of Wily's failsafe robots, based on Blues' design. MegaMan defeats Forte in combat and attempts to kill Dr. Wily after reaching him, but shuts down due to behavioral fail-safe programming installed by Dr. Light. Wily escapes.
2015 A.D.
Enraged at Blues' capture, Forte's disobedience, and his betrayal by one of his most powerful robots, Dr. Wily begins altering the still-incompleted Zero into a battle machine which he hopes will be able to destroy MegaMan and put a stop to Dr. Light's meddling. At the same time, Dr. Light is nearing X's completion, though he's altered the robot's design significantly by adding light-weight battle armor and a heavy Buster cannon.
2017 A.D.
Late in the year, Dr. Light finally completes X. Unfortunately for him, Dr. Wily has also completed Zero by this time. He proceeds to send her to Westchester, where she murders anyone who gets in her path as she makes her way to Dr. Light's lab. MegaMan tries valiantly to stop her, but ultimately fails, ending up torn into several pieces and deactivated. Dr. Light, left with little choice in the matter, instructs Blues to leave the lab with Roll and keep her safe while he stays behind to seal X in a capsule designed to automatically test his neural circuitry's reliability in his absence. The automated test is slow, however, requiring approximately thirty years to complete. Dr. Light is aware that he'll never live to see X's activation, but he manages to create an AI simulation of himself and loads it into the capsule's computer before Zero mercilessly kills him.
Upon her return to Skull Fortress, Zero relays a cryptic message from Dr. Light regarding X; Wily immediately sends her back, but as she arrives she's confronted by Blues and Kagemaru, a cyborg created by Japanese roboticist Nobuhiro Takagi. The fight is one-sided, until Kagemaru manages to drive her away with a single attack; both are severely damaged by the fight. Wily spends the next several hours installing a computer virus in Zero's neural matrix that will drive X insane on contact and turn him into a killing machine. He doesn't get a chance to complete Zero's repairs, however, before Zero takes it upon herself to remove an intruder from the lab, which turns out to be Kagemaru. While she's distracted, Blues proceeds to sneak into the lab and kill Dr. Wily before destroying the fortress' support structure, burying Zero.