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Marvel Cinematic Universe

Information-silk Official Reality Number
Information-silk Aliases
The Avengers Universe, Marvel Media Universe, Earth-I, Earth-20080502, MCU
Information-silk Status
First appearance

Iron Man
(May 2, 2008)



Earth-199999 has all the features of our reality: the same countries, same personalities, and many of the same historical events. However, it also contains many fictional additions that have reshaped the world historically and developmentally. Super-advanced technology, and the interference of non-human races, sets the stage for a science fiction environment. A multi-national policing agency in the form of S.H.I.E.L.D. has been included as a result of these things. A select few people have appeared who are more than human, setting the stage for a world with superheroes and villains.

Super Heroes and Villains

The tradition of using costumed identities to fight (or commit) evil had long existed in this world, first by Captain America in the 1940s and then by Iron Man in modern times. Earth-199999's major heroes (the ones who get involved in most of the important events) are Iron Man, Thor, the Hulk, S.H.I.E.L.D.'s director Nick Fury, Black Widow and Captain America. The Avengers are major players. Although they are a recent addition to this universe, they have so far included most of Earth-199999's major heroes as members.

Of course, as one would expect in a universe with superheroes, there would inevitably have to be crime and evil, and this universe is by far no exception. Loki, the Abomination, Aldrich Killian and the Red Skull are among them.


The Dark Ages

Asgardians came to Earth, visiting the peoples of Northern Europe and teaching them language and culture, and protecting them from Frost Giants. Early Norse cultures learned much from these visits, although in time the Asgardians would withdraw and their memory would fall into legend.[1]

20th Century

The 1940's were a tumultuous time. Depression years and racial disharmony in Europe sparked a Second World War that pressed various factions into a technology race. While Nazi forces occupied much of Central Europe, a detachment calling themselves Hydra were making gains in unconventional warfare. Their leader Johann Schmidt actually managed to procure a Tesseract, and in studying this device Hydra scientists were able to devise new and deadly weapons for their war effort.

In America, Abraham Erskine and Howard Stark were poised on verge breakthroughs that would set the stage for the world of the modern "superhero". Erskine had developed a "Super-Soldier" serum that was to transform a soldier from an ordinary man into something altogether stronger, faster, and more resilient. As a result of this experimental process, Steven Rogers became the world's first superhero, "Captain America", but not without cost. Erskine was assassinated and most of the remaining samples of the serum were destroyed before the project could be pushed into widespread use. Captain America led the fight against Hydra and Johann Schmidt, the Red Skull. In the end, Hydra and Schmidt were defeated, but the lives of Captain America and his partner Bucky Barnes were lost in the process.[2] The war was won, not with super soldiers, but with many countless lives and simple, bloody warfare.[3]

Howard Stark, who had assisted with Erskine's program went on to develop numerous advances in technology. Learning from the recovered Tesseract, he went on to develop prototype arc reactors, powerful sources of energy in their own right. He eventually died in a car accident, leaving his business empire to his young son, Tony, and Stark Industries grew into a world renowned supplier of weapons technology.[4]

21st Century

The dawn of the superhero age might have looked like a brief spark to those who grew up reading the exploits of Captain America, but it was soon to flare into a far brighter flame. The secrets of Erskine's formula had baffled scientists for decades until Dr. Bruce Banner explored a new direction and bombarded himself with gamma radiation to prove his theories. His experiment was successful in augmenting the human form, but the extent of the mutation was far beyond anything anyone could have anticipated. Banner was transformed into a raging green beast that was later dubbed the "Hulk". His identity nor existence was never revealed to the public as Banner went on the run to learn how to control and subsequently cure the monster within him.[5]

In response to threats posed by such things as the Hulk and the Tesseract, governments of the world formed the World Security Council, which in turn channeled resources into a world-spanning security agency they named, Strategic Homeland Intervention Enforcement Logistics Division (S.H.I.E.L.D.).

The young Tony Stark had spent the years since his father's death learning the role of businessman and further developing his father's company. An inventive genius himself, he was personally responsible for many of the innovations that made Stark Industries a world leader in weapons technology. On a trip to Afghanistan his convoy was ambushed, and he was held captive and forced to develop weapons for terrorists. He escaped from his captors by building a battlesuit for himself rather than the missile they wanted, but the whole incident had a profound effect on him. He turned his company away from the path of violence, while constructing a series of high-tech battlesuits that he wore into battle himself. Tony's vigilante actions had the effect of ushering in a new superhero age, and taking a leaf from the press he began publicly referring to his heroic persona as "Iron Man".[4]

After half a decade in hiding, Banner finally reappeared on the military's radar. Now living a somewhat peaceful life in South America, Banner had been searching for a cure all this time. After another Hulk out, Banner was forced to return home to continue to find a cure with former girlfriend Betty Ross.

S.H.I.E.L.D. soon took an interest in Iron Man's activities. They approached Stark on several occasions and reviewed him for potential inclusion into a select group of individuals, but ultimately withdrew from seeking his personal involvement due to his erratic nature. Instead they turned their attentions to exploring weapons technologies. Their mandate was to protect the world from such powerful threats as the Hulk and to this end they began to grow from a clandestine police agency into a powerful military force.[6]

S.H.I.E.L.D. kept a close eye on multiple threats at once, Tony Stark's adventures as Iron Man, atmospheric disturbances in New Mexico, and Banner's return to the United States.[7] Soon, the Hulk was made known to the public due to brief battles with the military and another huge monster. Banner wasn't hailed as a hero like Tony Stark was, instead Banner was forced to go into hiding again, learning how to control the Hulk rather than cure it.

The Asgardians, thought to be nothing more than a myth after centuries of absence, returned once again to the world when the heir to the throne of Asgard, Thor found himself banished until he could prove himself worthy to rule Asgard. While his initial appearance went unnoticed to all but a few scientists, his hammer Mjolnir caused quite a stir after it impacted in Puente Antiguo, New Mexico, and also drew the attention of S.H.I.E.L.D. Thor's brother, Loki, in an effort to kill Thor so that the throne would be his, sent the Destroyer after him. Thor's banishment was lifted when he proved himself worthy during the fight with the Destroyer. He did eventually reclaim his birthright and announced that S.H.I.E.L.D. could thereafter count him as an ally.[1]

Alliances would be needed again soon enough. Loki returned to earth with a vengeance, and made a surprise appearance and stole the Tesseract away from S.H.I.E.L.D. In a desperate bid to counter this threat, S.H.I.E.L.D. reactivated an old plan to assemble a group of extraordinary individuals. They called on Tony Stark and Bruce Banner for their scientific expertise. Captain America, reawakened after decades of being frozen in Arctic ice, was called upon to be a super soldier once more. Thor, and S.H.I.E.L.D. agents Romanoff and Barton stepped in to round out the new team. Calling themselves the Avengers, they were able to defeat Loki and repel the Chitauri invasion.[3]

In the wake of the Battle of New York, the world had become a changed place. Some feared the prospect of threats from beyond the known world, but the next threat of significance was a series of terrorist bombings around the globe, supposedly perpetrated by a villain known as the Mandarin. Authorities searched in vain for the culprit behind it, and were confounded by the series of hijacked television broadcasts that followed. The Iron Patriot was put in-charge to find the Mandarin, but it was Tony Stark to who revealed the Mandarin's true identity and his plan. Together, Iron Man and Iron Patriot put a stop to the terrorist attacks, but all of Iron Man's many suits of armors were seemingly destroyed.[8]

After easing the tension between the Nine Realms, Thor finally settled down for a time of peace. However, peace did not come, because the Aether, a relic from a time long gone, resurfaced, and along with it, came the Dark Elves, led by the evil Malekith. It took the combined efforts of Thor and many of his friends to prevent reality itself from being plunged back into darkness.[9]

Readjusting to the modern world, Captain America, now an agent of S.H.I.E.L.D., was thrown back into a war against Hydra, when he, Black Widow, and Nick Fury learned that Hydra had been growing within S.H.I.E.L.D. Without anyone to trust, Captain America went to his newfound friend Sam Wilson for aid to put a stop to Hydra's plan to eradicate all their potential threats. During the battle, Captain America had to face his believed-to-be-dead partner, Bucky Barnes, who had now assumed the identity of the Winter Soldier. In the end, Captain America and allies defeated Hydra, but S.H.I.E.L.D. went down along with it.[10]


The Avengers


S.H.I.E.L.D. Academy

Stark Industries

U.S. Military


Howling Commandos

The Ten Rings

Culver University

Hammer Advanced Weapons Systems


Warriors Three




Project Centipede

World Security Council



The Rising Tide

Dark Elves

Norse Paganist Hate Group

Seagate Prison

Other Characters


The following characters only appear in tie-in materials, making their existence semi-canonical


Extra-dimensional Locations

Nine Realms


The Marvel Cinematic Universe contains a wide array of material in a number of formats, including:

Official designation revealed in Official Handbook of the Marvel Universe A-Z Volume 5 hardcover.


  • Earth-199999 reality seems to be more scientifically oriented than Earth-616. For example, Whereas the gods from the original comics have genuinely supernatural powers, in Earth-199999, the Asgardians' powers seems to be from exotic and advanced alien technology. Numerous "magical" artifacts have technological aspects and functions, Yggdrasil is a cosmical nimbus, and both Thor and Jane claim that to be "science" (Jane even cites Clarke's third law: "Any sufficiently advanced technology is indistinguishable from magic"). However, the nature of the Asgardians' power and magic in general on Earth-199999 is not fully explored nor truly discards the possibility of supernatural. For example, Asgard is shown as a flat world, which clearly contradicts laws of physics, and it's also revealed that Asgardian "technology" is powered by the "Odin Force", which seems to be a sort of supernatural energy used by the Asgardians. Thor's own affirmation over this - "Your ancestors called it magic, but you call it science. I come from a land where they are one and the same." - is rather ambiguous, since while Thor is apparently agreeing with Jane's affirmation that the gods are aliens with advanced technology, this may also be interpreted that Asgardians have genuine magical powers, but that they see and use it like a alternative kind of science. If this latter is correct, then Asgardians' magic follows Niven's law: "Any sufficiently rigorously defined magic is indistinguishable from technology".
  • This universe was visited off-screen by the Young Avengers when they traveled the Multiverse looking for Speed.[13]
  • Marvel Television has allied with Netflix to create four 13-episode series focused on "Daredevil," followed by "Jessica Jones," "Iron Fist" and "Luke Cage," which would culminate in a "Defenders" mini-series.[14] These series will take place in the Marvel Cinematic Universe as stated by MCU writer Drew Pearce[15]


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