The Downfall of Numenor

[Bêthberry]

It is quite extraordinary to see these early threads! Forgive me if my question has been answered on other early threads; I haven't found any which did.

Mithadan wrote:

I have no real answer either, other than perhaps JRRT wanted to incorporate Atlantis into his mythos (he used to dream about the ever-rising wave and ultimately "assigned" this dream to Faramir). Akallabeth was the only way to bring that myth within his subcreated world.

This in answer to his [Mithadan's] initial question of why was Numenor destroyed when the Valar could simply have stopped Al-Pharazon.

While I do not have the intimate acquaintance with and understanding of The Silm which many of you have, I would like to ask whether the myth of Atlantis was the only flood myth which Tolkien was incorporating into his mythology? I am asking out of interest in questions of literary creation.

Bethberry