Given what God900 said, that seems fine. Though, I don't think we need to clarify what we define as someone's history, more describe what actually falls into the borders of High-Godly (eg. they can't have anchors, and can't be remembered
en masse if they're erased from time-space).
I say
en masse specifically because obviously there's atemporal characters (like characters in DC remembering the Crisis on Infinite Earths), or Doctor Who logic where the characters manipulating time-space may retain their memories. Sometimes, however, those memories can allow these characters to be resurrected.
As for living time-spaces, it's entirely verse dependent and should still fall under the same criteria.
- Was a truly fundamental aspect(s) of their being (such as the concept of physical laws) erased?
- Were they erased from history to the point where characters can't remember them rather than just being deleted in the present?
- If they have a soul or spiritual/astral existence, was that erased? It'd still apply regardless (they're time-space, after all), unless they specifically had a higher level of being that allowed them to survive.
- Do they have an anchor or driving force that resurrected them/allowed them to resurrect? If so, they aren't High Godly. Evil Ernie, who had an incorporeal form to survive the complete erasure and recreation of his universe, is a good example.
I did mean to say nothing on a temporal or conceptual level. My mistake.
The Sailor Moon thing was addressed. It's fine.