Marvel Comics broke Spider-Man canon a full decade before most fans think it did. Critical readers point to 2007's "One More Day" storyline as the point of no return for Spider-Man lore, but actually, Marvel had already lost sight of what makes Spider-Man stories truly great well over a decade before that, during the peak of the 1990s.
In conversation with Popverse , former Spider-Man writer spoke about his plans for Peter Parker and Mary Jane's baby , which Marvel scrapped at the last minute.
After being led to believe their newborn daughter Mayday was dead, MJ and Peter were going to be reunited with her. Instead, Marvel brought back Aunt May. Arguably, the franchise has never recovered.
Way Before "One More Day," Marvel Made The Same Critical Mistake With Spider-M