.
Victor Von Doom (their nemesis Dr. Doom) was born in the hinterlands of Bavaria to a gypsy tribe. Genius on the same level as Reed Richards, the two was actually college roommates briefly. Von Doom, suspicious of others, especially those near his own much-valued intelligence, interrupted Richards going over some of Von Doom's notes. Flying into a rage, Von Doom evicted him from his laboratory, and when Richards tried to warn him of a dangerous miscalculation, Von Doom ignored him. The experiment blew up in his face, literally, and Von Doom was forced to leave the university. This was only the first of many wrongs for which he would blame Reed Richards. Von Doom wandered the world after this, learning everything he could. Eventually he concluded that the only way to save the world was to rule it, and sealing himself inside a gray metal suit of armor, he set out to do just that. .
The FF and Doctor Doom have clashed many, many times over the years, and no doubt they will clash again in the future. The Fantastic Four have saved the entire world, even the entire universe several times though they hardly receive the approval one would expect for such heroism. They still go on, as they have for the last forty years, and, given the slow passage of comic book time, as they probably will for the next forty years.
Wolverine.
The earliest part of Wolverine's life we know to be true is the Weapon X program. He was taken against his will and was experimented on by scientists that transformed him into Weapon X. They laced his skeleton with adamantium, which unintentionally laced his claws with adamantium also, and trained him to be a wild vicious fighter with his animal instincts. They replaced most or all of his memories with implants so to this day he doesn't know where he came from or how he got to the Weapon X program to begin with. He somehow escaped or was released by the scientists and met James and Heather Hudson for the first time.
