Earth-98

In the Marvel Comics Multiverse, Earth-98 or Earth 98 is similar to Earth-616, the primary home to superheroes seen in canonical Marvel comic books, except that they began their careers during their debuts on the comic book with a publication date rather than beginning their career "ten to fifteen years ago" (e.g. Spider-Man began his adventures in 1962 instead of 199?), which is the official "dating" scheme in Marvel Comics. This Earth is sometimes referred to as "Earth-1961", a reference to the year Fantastic Four made its comic debut. This Earth was designated as Earth-98 in The Official Handbook to the Marvel Universe: Alternate Universes 2005, a probable reference to its debut in the 1998 Fantastic Four Annual.

The timeline between 1961 to 1973 has similar dating points until the events of Amazing Spider-Man (vol. 1) #121-122 in which Spider-Man "vanishes" following the deaths of Gwen Stacy and Green Goblin rather than remaining active like his Earth-616 counterpart. While the timeline diverged significantly from Earth-616 after that point, parallels to the events of "Onslaught" and the emerging of Wolverine are still part of Earth-98 continuity.