Background: Dr. Victor Von Doom (commonly known as Doctor Doom, or simply Doom) is a fictional character appearing in American comic books published by Marvel Comics. The son of a Romani witch, Von Doom has been depicted as a supervillain, the archenemy of the Fantastic Four, and the leader of the fictional nation called Latveria. While his chief opponents have been the Fantastic Four, he has also come into conflict with Spider-Man, Iron Man, Black Panther, and multiple others. Von Doom has also been depicted as a superhero, being the third character to take up the mantle of Iron Man and joining the Avengers.
Context: In 1976, Marvel and DC Comics collaborated on Superman vs. the Amazing Spider-Man, and seeking to replicate that success the two companies again teamed the characters in Superman and Spider-Man in 1981. Marvel editor in chief Jim Shooter co-wrote the story with Marv Wolfman, and recalled choosing Victor von Doom based on his iconic status: "I figured I needed the heaviest-duty bad guy we had to offer -- Doctor Doom. Their greatest hero against our greatest villain."  The same year, John Byrne began his six-year run writing and illustrating Fantastic Four, sparking a "second golden age" for the title but also attempting to "turn the clock back [...] get back and see fresh what it was that made the book great at its inception." Doctor Doom made his first appearance under Byrne's tenure with issue #236. Whereas Kirby had intimated that Doom's disfigurement was more a figment of Victor's vain personality, Byrne decided that Doom's face was truly ravaged: only Doom's own robot slaves are allowed to see the monarch without his helmet. Byrne emphasized other aspects of Doom's personality; despite his ruthless nature, Victor von Doom is a man of honor. Returning to Latveria after being temporarily deposed, Doctor Doom abandons a scheme to wrest mystical secrets from Doctor Strange in order to oversee his land's reconstruction. Despite a tempestuous temper, Doom occasionally shows warmth and empathy to others; he tries to free his mother from Mephisto and treats Kristoff Vernard like his own son. Byrne gave further detail regarding Doom's scarring: Byrne introduced the idea that the accident at Empire State University only left Victor with a small scar that was exaggerated into a more disfiguring accident by Doom's own arrogance--by donning his newly forged face mask before it had fully cooled, he caused massive irreparable damage.  After Byrne's departure Doom continued to be a major villain in Fantastic Four, and as the 1980s continued Doom appeared in other comics such as Punisher, The Spectacular Spider-Man, and Excalibur. Under Fantastic Four writer Steven Englehart, Doom became exiled from Latveria by his heir Kristoff, who was brainwashed into thinking he was Victor von Doom. Doom would spend most of his time in exile planning his return, but Englehart left the title before he could resolve the storyline. This storyline ultimately ended with the controversial Fantastic Four #350, where writer Walt Simonson had the Victor von Doom who had been seen in the book during the Englehart run being revealed to be a robotic imposter and the real Von Doom, in a newly redesigned armor, returning to claim his country from his usurper. According to Simonson's retcon, the last appearance of the real Victor von Doom was in the "Battle of the Baxter Building" story arc, but Simonson's interpretation of the character was unaware of certain major changes at the time to the Fantastic Four. Simonson drew up a list of stories which featured the real Doom and those which did not but later writers ignored Simonson's choices, retconning these story elements as an attempt by Doom to blame his own past failures on unruly robots.
Question: What happned to Doom in the 1990s?
Answer: 

Background: John F. Maulbetsch (June 20, 1890 - September 14, 1950) was an All-American football halfback at Adrian College in 1911 and for the University of Michigan Wolverines from 1914 to 1916. He is also a member of the College Football Hall of Fame. After playing with an independent football team in Ann Arbor and at Adrian College, Maulbetsch became one of the most famous American football players in 1914 while playing for the University of Michigan. Maulbetsch became known as the "Human Bullet" because of his unusual low, line-plunging style of play, and was also known as the "Featherweight Fullback" because of his light weight and small size.
Context: Much of the attention on Maulbetsch focused on his diminutive size and unique running style. At 5 ft 7 in (1.70 m), and 155 lb (70 kg), Maulbetsch was a small back, even by the standards of his day. And his running style saw him bend his torso and propel himself like a projectile into the opposing line. Indeed, he won several nicknames based on his size, running style, and fighting spirit, including the "Human Bullet," "Mauly", the "Human Shrapnel", the "Featherweight Fullback", the "Michigan Cannon Ball," and the "German bullet." Comparisons of Maulbetsch to military armaments were common. In addition to the "bullet", "shrapnel", and "cannonball" nicknames, the Syracuse Herald observed: "Standing up in front of a Krupp gun has its dangers, but it is not to be compared with the dangers of standing in front of Maulbetsch when he is going full speed ahead."  Maulbetsch's style was described as "line-plunging." A New York newspaper noted: "When the ball is snapped to him he almost doubles himself up, and, with his head aimed at the knees of the opposing line, he dives head first. Those who have seen Maulbetsch in action marvel at the great momentum he can get up in two or three steps." Noted football writer Walter Eckersall said: "Mauly is a little fellow, being built close to the ground. They say that when he plunges at the line his head is almost on a level with his shoe tops - that he hits so low that it's well nigh impossible to stop him." An Iowa newspaper wondered how it was possible "for a man to smash into a line of human bodies with the force that Maulbetsch does and come out of the game without a broken neck."  Maulbetsch was said to run "so low that he could dash under an ordinary table without losing his feet." At a coaching conference in the 1920s, a coach doubted the table-ducking story and challenged Maulbetsch. The doubter later recalled: "I began ribbing him about this table-ducking stuff and finally offered to bet him he couldn't do it. Well, we got a table up in a room, Johnny tucked a water pitcher under his arm and backed against the wall. Darned if he didn't do it, the only thing, that water pitcher broke in a million pieces." Asked about the incident, Maulbetsch said it was true, except one part. Maulbetsch insisted there wasn't a nick on the pitcher.
Question: How did he train?
Answer: