The Egyptian priests told Solon that the Greeks were like children because they only remembered one great flood. There were at least three, they said, and their sacred registers preserved records going back 9,000 years. This is the framing of the Atlantis story in Plato's dialogues, and it's worth taking seriously. The priests weren't just telling myths. They were pointing to a deeper historical memory that survived in Egypt because the Nile Valley was geographically insulated from the catastrophes that repeatedly wiped out civilizations elsewhere. What gets dismissed as legend may actually be the fragmentary memory of real events, preserved in the one place that had continuous institutional record-keeping.