for timeline understanding: Lion's used to be in Europe during Alexander the Great. His timeline is towards the end of the Sumerian empire (we have coins of his face) - the Atlantians would have arrived 10 000 years prior to Alexander the Great - but Egypt at the time was already a well established civilization that spanned upper and lower Nile, but also Sinai towards current day Lebanon.  

 Have you dug into the Younger Dryas Impact Hypothesis?
Our ancestors certainly went to great lengths to warn us about cataclysmic foods.
Living in a cosmic shooting gallery has its risks, and so does building cities on the coast. 

 yeah,  Randall Carlson is the man.  I do believe we had a cataclysm to some extant that created the "Great Flood" - in fact, a lot of Abraham scripture is based off Sumerian scripture. At some point there was a "great flood" and many ancient scriptures talk about this, especially Sumerian and Egyptians.  

 I was already looking into links between the Younger Dryas and flood myths,when the Randall Carlson came along and had really put things together.