The Man of Steel (comics) and archenemy Lex Luthor, who was re-branded from a mad scientist to a powerful businessman and white-collar criminal. The series's legacy persisted, as it set the new status quo for all of the ongoing Superman comic series for many years after it was published. The story stayed in DC Comics continuity as the origin of Superman until it was expanded upon in the 2003 limited series "", which stayed canon until 2009. The title is a reference to one of Superman's nicknames which touted his invulnerability making him the "Man of Steel." It was later used as the title of
Superhero comics Innocent" and the investigations of The Senate Subcommittee hearings on juvenile delinquency. Beginning in the 1950s, DC began publishing revised versions of their 1940s superhero characters such as The Flash and Green Lantern with more of a science fiction focus. Marvel Comics followed suit in the 1960s, introducing characters such as Spider-Man, the Fantastic Four, the Hulk, Thor, the X-Men and Iron Man who featured more complex personalities which had more dramatic potential. Superhero Comics became much more political and dealt with social issues such as the short-lived run of "Green Lantern/Green Arrow" by Denny O'Neil and Neal Adams and