Steel (John Henry Irons) the comic book tie-in of "Justice League Unlimited". Steel (John Henry Irons) Steel (John Henry Irons) also known as the Man of Steel is a fictional comic book superhero in DC Comics. Introduced in 1993 as one of several replacement characters for the then-deceased Superman, Steel continued to be an independent superhero after Superman's resurrection. He received his own ongoing series which saw him move from Metropolis to Washington, D.C. and join the Justice League of America in Grant Morrison's "JLA". He later mentored his niece Natasha Irons who became a superheroine herself. First appearing in "The Adventures of Superman"
Superhero fiction Gail Simone has coined the term "Women in Refrigerators" (named after an incident in "Green Lantern" #54 where Kyle Rayner's girlfriend Alex DeWitt is murdered by the supervillain Major Force and stuffed into Rayner's refrigerator) to refer to this practice. Many works of superhero fiction occur in a shared fictional universe, sometimes (as in the cases of the DC and Marvel Universes) establishing a fictional continuity of thousands of works spread over many decades. Changes to continuity are also common, ranging from small changes to established continuity, commonly called retcons, to full reboots, erasing all previous continuity. It is also