Nefrodite, almost called you Nef for short, an equally likely explanation is that the flood occurred far enough back in time to have traveled with the settlers to these land. I don't know if you are aware that primitive, by our upside down standards, societies usually had a class of storytellers who knew by heart and word for word hundresd and even thousands of traditions. The origins and lauguage of Fe Fi Fo Fum have been lost in time and may, it has been conjectured, refer to Neanderthals, the giants. Many believe that ancient civilizations, the Atlantians, for example, sent researchers all over the world to study the heavens from their stone momument observatories, and to teach a path to higher consciousness. A cataclismic event at the heart of civilization as then constituted would indeed be a world catastrophe. We know, for example, too, that people tend to build along coastlines, and that the iceage melt raised sea levels 200 ft.