Quote Originally Posted by Jim Kelly View Post
Captain Comet was called a mutant when he first appeared in the 1950s, well before Marvel got their hands all over the term. So he might be grandfathered in. But D.C. came up with metahuman, because they could trademark that and it wasn't something that Marvel was using.
I have a recollection of a community of mutants in an issue of Superman, probably in 1970s. All I remember is that they had two thumbs, and when thye put the two thumbs on a hand together something happened. Does anyone remember this story who can fill in the large gaps in my memory?