LOTR: Why Were Men Also Known as Secondborn?

The rich tapestry of J.R.R. Tolkien’s Middle-earth, as depicted in The Lord of the Rings, is inhabited by various races, each with its own unique characteristics and roles in the grand narrative. In this intricate world, the race of Men occupies a distinctive and profound position as the Secondborn, one of the two known Children of Ilúvatar, also revered as the One.