Flood explained here (not yet recognized by ‘official geology’):
http://www.threeimpacts-twoevents.com/wp-content/uploads/2013/08/COMET-IMPACT-ANALYSIS-AND-EFFECTS-20Aug2013.pdf
When it happened is uncertain (450 kybp? 5.4 kybp?).
The flood, banishment from the Garden of Eden, the need for clothing, and the seeming re-start of humanity are all understood in the context that a massive comet hit in what is now the Southern Ocean and that it delivered a nearly incomprehensible amount of water. It appeared to survivors that the water came from the firmament; it actually made its way from the Southern Ocean impact site.
Atlantis existed. Its inhabitants were advanced, and they had water craft. (See Ignatius Donnelly’s book: ‘Atlantis, The Antediluvian World’ for a scholarly account.). The city was buried under more than two miles of water delivered by the comet. Almost everyone from Atlantis perished. We happen to call a lucky survivor Noah.
Now try this one on for size: we are an invasive species. We occupy lands that were mostly uninhabited prior to the comet impact.
“In the days of Pelegg was the world divided” Genesis. It doesn’t say the “people scattered” as in the Babel account. The pangea break up may have been a much more recent, rapid, and spiritually engineered geological event!