Full 12-month calendars in their own right issued by comic book companies are nothing new these days, even if some may appear to be only released at the publisher’s whim. But as recently as the dawn of the 70s, such items were non-existent, appearing only occasionally as novelty pieces within the pages of comic books.
The first DC Comics calendar which has any sort of Legion connection appeared in DC COMICS’ LIMITED COLLECTOR’S EDITION C-34 (Christmas With The Super-Heroes), which featured a standard 12-month listing of dates for 1975, embellished on the periphery with images of various DC characters, including the Legion. This Murphy Anderson illustration was also used on the covers of the four-issue LEGION OF SUPER-HEROES series, which reprinted various stories from the ADVENTURE COMICS era.