The origin of Super Villains: Calendar Man

https://en.wikipedia.org/wiki/Calendar_Man

Calendar Man (Julian Gregory Day) is a fictional supervillain appearing in American comic books published by DC Comics, as an enemy of the superhero Batman, belonging to the collective of adversaries that make up Batman's rogues gallery. 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.[1] In his debut, the character was presented as a joke villain, but in later years, writers developed Calendar Man as a dark, disturbed serial killer that toys with Batman.[2]

Publication history
Calendar Man first appeared in Detective Comics #259 (Sept. 1958) and was created by Bill Finger and Sheldon Moldoff.[3] He returned after twenty years to plague Batman again in Batman #312 (June 1979).[4]

Fictional character biography
Criminal career
Calendar Man is fascinated by dates and calendars.[5] His crimes always have a relationship to the date that they are committed. The theme may be related to what day of the week it is or to a holiday or to a special anniversary on that date; he will plan his crime around that day. He often wears different costumes which correspond to the significance of the date, though he does have a main costume which has various numbers (meant to represent days on a calendar) sprouting from the shoulders.[3]

He next appears in Batman #312 (June 1979), in which his crimes are based on the days of the week, and his costumes reflect the Norse and Roman gods they were named for, e.g. Saturn. Calendar Man fires an ultrasonic sound weapon at Batman, nearly killing him. While Batman recuperates, Calendar Man commits crimes on Friday and Saturday. He plans to leave Gotham City on a train called the Western Sun Express on Sunday -- the traditional "day of rest" --knowing that the police would be waiting for him to attempt to steal an artifact of the Egyptian god of the Sun, Ra. Batman captures him at the train station before he boards.

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