[Being deliberately erased... quite a lot of evidence of that much, with the lack of imagery to know for certain. The lack of a clear definitive past, at least from what they were allowed to interact with.]

There is too much that we do not know.

[They could chase theories around until sun up, but all that would matter in the end is any information they'd managed to gather at all. She has to pause though, for her murmuring. Shouldn't do all this talking without having something to drink, nearby, in their state, but here they were.]

Those... archives certainly hinted at varied personalities involved, if they are around in any capacity to speak freely. Those... records in their entirety could be kept elsewhere.