Menoth was of the race pf Star Elves.  He lived 2100 to 1598 years before Year 1.  He challenged the then-dominant beliefs on Alfheim, a belief in Incarnatism common among Star Elves that they would become gods and goddesses when they died.  He also challenged faith in the then-common belief in the so-called Old Gods of the Star Elves

He stated there was only one true divinity, the Allfather, the Creator God.  His beliefs spread rapidly during and after his death.  He also suggested the Old God were actually angels who served the Creator/Allfather, or demons who opposed him.