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
Calendar Man Calendar Man Calendar Man (real name Julian Gregory Day) is a fictional supervillain appearing in American comic books published by DC Comics, as an enemy of the superhero Batman. Calendar Man is known for committing crimes that correspond with holidays and significant dates. He often wears costumes to correlate with the date of the designated crime. In his first debut, many readers found the character as a joke villain, but in later years, writers developed Calendar Man as a more dark, disturbed serial killer that toys with Batman. Calendar Man first appeared in "Detective Comics" #259 (Sept. 1958) and was