“There are more than 1000 English language flood myths representing several hundred individual cultures, while hundreds of flood myths have not yet been translated into English.” – Dallas Abbott, “Burckle Abyssal Impact Crater: Did this Impact Produce a Global Deluge?”, 2.6 Effects on Human Populations of this Event.
There are so many flood “myths” in cultures throughout the world because a flood event did happen.
In my view, a worldwide catastrophic flood event occurred, but it did not submerge all land, nor kill all humans and animals outside the Arc. The Bible describes an historical event, in figurative terms, so as to be able to better teach spiritual lessons from that real event.
I favor the view of W. Bruce Masse, that the flood event was a comet impact in the deep ocean in 2807 B.C.