So, there you have it, the MCU is officially Earth-616. You can pick holes in the decision, but it's what Marvel Studios has gone for and will likely stick until this franchise is rebooted post-Avengers: Secret Wars.
Spider-Man: Across the Spider-Verse follows a similar suit and also refers to the MCU as Earth-199999. However, given that the most recent official MCU timeline very clearly states that the franchise is Earth-616, it seems a definitive answer has been given.
Earth-199999 is a universe within the Multiverse. In this universe, Peter Parker, alias Spider-Man had broken the fabric of reality by tampering with a mind-sweeping spell of Doctor Strange's. He had it fixed by the universe forgetting Parker's identity.
Earth-616. Earth-616, also known as the Sacred Timeline, is the main reality depicted in the MCU. Despite having been designated as Earth-199999 by Marvel Comics in 2008, Multiverse of Madness establishes the MCU as Earth-616, sharing the name with the primary setting of the comics.
Alan Davis, the story's artist, claims it was David Thorpe, Moore's predecessor as Captain Britain writer, who first coined the term, though Moore maintains he came up with it himself. According to Moore, the number 616 was chosen at random to avoid using the terms 'Earth-One' or 'Earth-Two,' as used by DC.
In the Official Handbook of the Marvel Universe A to Z: Vol. 5, the MCU movies and TV shows are established to take place in a different setting altogether from the comics. To avoid confusion, the handbook designates the comic universe under the Earth-616 title, while the MCU is positioned as Earth-199999.
It's 199999 to us (real world people) and 616 to them (the MCU characters). 616 to us is the comics universe. For real world 3D people: 616 is main comics universe, 199999 is Hollywood live-action MCU.
In the comics, Earth-616 is the "prime-universe" — the main setting of most of its non-alternate universe storylines as well considered by many to be the source dimension of the multiverse.
Parker is from Earth-616. Peter B. Parker hails from Earth-616. This is often referred to as the main universe or the prime universe in Marvel continuity.
Technically, no. The Earth that was created after the destruction of the Marvel Multiverse in the Incursion storyline is not technically Earth 616, since it contains components of other pre-Incursion Earths. This Earth exists in the Eighth Cosmos, the successor multiverse to the pre-Incursion Seventh Cosmos.
In all the issues of Deadpool Kills Deadpool (July 2013), the story centers around the timeline of the Earth-616 Deadpool rather that any of the alternate universe versions. In Secret Wars (2015) #1, the universe where the main story line takes place is referred to as Earth-616.
The mainline (comics) universe is 616, from the address of Marvel Comics headquarters. 199999 looks like a date, either the 9th September 1999 or maybe the 99th day of 1999 which is 9th April. Presumably, something significant happened on the date, either in real life or significant to the storyline of the setting.
History. Earth-1218 is the designation given to our reality, where super-heroes and other super-powered beings don't physically exist. This universe may appear somewhat dull from a cerebral perspective, but it does have its good sides, for those willing to recognize them.
Seemingly those of the Peter Parker of Earth-616. Spider Physiology: Peter was bitten by a radioactive spider and gained the proportionate physical abilities of a spider. He has 23 years of experience.
While it has been confirmed to be a possible future version of Earth-616, the mainstream Marvel Universe, the 2099 universe has been officially designated as Earth-928 and alternatively dubbed as Earth-616 circa 2099, or simply Earth-2099.
Peter Parker, the Amazing Spider-Man, is the mainstream and original Earth-616 incarnation of the character and appears in almost every piece of Spider-Man related media. All other "spider-men" are derived from him.
Maguire reprised his role as Peter Parker / Spider-Man in the Marvel Cinematic Universe film Spider-Man: No Way Home (2021), alongside successors Tom Holland and Andrew Garfield.
Marvel's Ultimate Universe, also known as Earth-1610, was a reimagining of the main universe to bring their characters into the 21st Century. The Ultimate imprint started in 2000 and started reimagining the characters starting with Spider-Man in 2000, Fantastic Four in 2004, the X-Men and other heroes.
Earth-616 is generally referred to as “our” universe. It has become such a Marvel institution that it was borrowed for the title of its upcoming documentary series Marvel's 616, which begins streaming exclusively on Disney+ this week.
Earth-1218 is the designation given to our reality, where super-heroes and other super-powered beings don't physically exist. This universe may appear somewhat dull from a cerebral perspective, but it does have its good sides, for those willing to recognize them.
The Sacred Timeline is also prominently used to refer to a singular timeline, the main baseline, also known as Earth-616, which is the starting-point for all the timelines that the Time Variance Authority monitored.
