As long as the people of the island kingdom were loyal to the Valar, Uinen was their most important deity.

Source: https://gamerant.com/lord-of-the-rings-maiar-best-most-powerful/

He made the Valar to help create and order the world, but the most powerful Valar, Melkor, turned out to be nothing but problems.

Source: https://www.cbr.com/is-sauron-stronger-than-morgoth-lord-of-the-rings/

He made the Valar to help create and order the world, but the most powerful Valar, Melkor, turned out to be nothing but problems.

Source: https://www.cbr.com/is-sauron-stronger-than-morgoth-lord-of-the-rings/

Tolkien explains that Gandalf is originally a Maia, a primordial spirit created to help the Valar shape the World.

Source: https://www.cbr.com/lord-of-the-rings-theories-that-make-sense/

When the Númenóreans broke the Ban of the Valar — the deities forbade the Men of Númenor from sailing too far west from the island — Eru Ilúvatar, the Creator and supreme deity of Arda, punished them by drowning the island.

Source: https://gamerant.com/lotr-what-caused-downfall-of-gondor/