Board Thread:General Discussion/@comment-18172179-20141003193641/@comment-220364-20141003215842

TheSonofNeptune wrote: No. I think that was just a mistake on the page. For iconic characters such as Superman, I think it's a safe bet to continue to list their actual first appearance ever. And that really does a disservice in some cases. The New and Prime Earths are not the exact same character that appeared in Action Comics #1. Nor are the logical, in-story progressions from that character. They are, for good or ill, adaptations of that characters that have had origins, powers, and personality tweaked. In those cases it is appropriate to use the later issues.

Cases where it isn't are either on-site instances where the character isn't separated - most of the JSA for instance have one page covering Earth-Two and new Earth - or where there is no clear change over - Batman of Earth-One for example.

The hurdle is going to be finding definitive first appearance. Superman isn't hard since the New Earth character starts with the Byrne re-boot right after Crisis. Wonder Woman is a similar case. The Bat-characters though are a lot messier.