Frodo asked Aragorn "Tell us a story one not well known."

"Very well" Aragorn replied.

"I will tell you The legend of the Aniur Naureni'er "

Naureni'er is the most powerful of the Aniur. He descended to Arda on the order of Eru, not Manwe.

Naureni'er was sent to the Kingdom of Numenor in the time of Elros Tar-Minyatur, first King of Numenor.

It is an old legend among the Dundain, from the Annuals of Nunemor.

It was recorded by both Naureni'er and Elros themselves.

The legend effected Nuemnor and it was said to be able to effect a later Age of Arda.

Though not even the ones who wrote it could know which it would effect.