Didn't really think about it till after Endgame, don't worry no spoilers here, but with the sliding time scale has say Iron Man in the MCU been around longer than the Fantastic Four in the core canon? Obviously any hero in comics is going to go on more adventures/have more experience, but have they been doing it longer?
I've heard anything from 5 to 15 years have passed since the Fantastic Four appeared, where would you put it at?