The island of Numenor plays a large role in The Lord of the Rings saga; it is portrayed as an important kingdom in Middle-earth with a dark fate it's hoping to avoid. Like Atlantis, it's destined to sink into the sea, which its largely benevolent Queen-Regent Miriel has seen in a vision during the first season of The Lord of the Rings: The Rings of Power. That's prompted all kinds of questions from fans both new and old, about Numenor's place in Middle-earth's history and the specific reasons for its destruction. Season 1 did an admirable job of establishing the kingdom, while making a number of its notable residents important protagonists in the process.
Source：https://www.cbr.com/what-happens-to-numenor-in-the-rings-of-power/
