Board Thread:Questions and Answers/@comment-16461120-20160408123829/@comment-61022-20160415161540

AnnabellRice wrote: Potentially not from said universe. There's nothing to say for certain one way or the other in terms of whether The Captain's home was part of Earth-51518 prior to Battleworld or not.

This is true, While Earth-51518 is similar to Earth-295, that's not to say the Captain didn't actually come from Earth-51518 or another reality all together. For the sake of disambiguation I think it's best to assign him to the reality he has the closest relationship with. Since there isn't another Earth-51518 version of Captain America running around it seems like the easiest way to categorize him for the time being until (and if) they ever revisit the character and provide more specific details.

I would even go so far as to do the same sort of classifications for the Doc Green characters (only applying them to Greenland instead of the Domain of Apocalypse) because that's the closest association we can nail down right now.