“Our ancestors went through some serious climate change caused by the natural wobble of our planet.”
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The climate change that they went through was much more likely caused by a comet or asteroid impact. Check out the Younger Dryas cometary impact theory, it occurred roughly 11,600 years ago which, perhaps not so coincidentally, almost exactly matches what Egyptian priests supposedly told the Greek philosopher Solon, which was passed on to Plato over the ensuing 300 years, who in turn wrote the story of an advanced civilization that existed at that point distant point in time (Atlantis). I honestly don’t know if there was an advanced civilization or not, though I am open minded about the subject, but the coincidence of the information that Solon received some 2600 years ago with the evidence of cometary impacts all over North America that were not discovered or recognized until very recently, is hard to ignore.
Yes i am familiar with the younger dryas event. But i was speaking about the periodic ice ages themselves every 130k years or so.
Your suggestion fits with the description of Atlantis as suffering catastrophic destruction “in a single day and night of misfortune.” Plausibly, earthquake and tsunami due to cometary impact would suffice.