"Might not be important," Megatron said, clearly dismissive, after a moment. They probably were, but not in the sense the etchings Orion had been interpreted were. They'd been holding the item Megatron had removed and tucked elsewhere, after all.

"And I don't think there are any plaques or anything; didn't find any the first time I was here." But if Orin had sharper optics than he did, all the better, since with names they could go searching through the archives for any mention that hadn't been scraped out already.

Because Megatron was pretty sure it'd been. The age, if he could judge them, both alone and by the item they'd been 'guarding', implied pre-Golden Age, and their history did not stretch coherently further back.

Due to 'unprecedented catastrophe' his aft.