The world of The Lord of the Rings is filled with stories that go far beyond what we saw on screen. One of the most powerful is the tale of Eärendil the Mariner — father of Elrond, and one of Middle-earth’s greatest unsung heroes. Though never shown in the films, his actions changed the fate of the world and left a mark in the sky itself.
The Mortal Who Reached the Undying Lands
Eärendil was born in the First Age, in the hidden city of Gondolin, to a Man (Tuor) and an Elf (Idril). After Gondolin’s fall, he fled to Arvenien and became a mariner. There, he married Elwing and had twin sons — Elrond and Elros.
When the Sons of Fëanor attacked, seeking Elwing’s Silmaril, they destroyed the city and took the twins. Elwing escaped into the sea with the jewel and was brought by the Vala Ulmo to Eärendil's ship, Vingilot. Together, they sailed to Valinor — a land forbidden to mortals — to beg the Valar for help against Morgoth. The Valar were so moved by their courage that they agreed.

The Legacy That Changed Elves and Men
After the war, the Valar granted Eärendil and Elwing the choice to live as either Elves or Humans. Elwing chose to be Elven, and Eärendil chose the same to stay with her.
Their descendants inherited that same choice. Elrond chose to be an Elf, while his brother Elros became the first King of Númenor. Much later, Arwen — Elrond’s daughter — would choose mortality to be with Aragorn. That iconic film moment traces back to Eärendil’s legacy.
The Star That Still Shines
As a final gift, the Valar lifted Vingilot into the sky with the Silmaril on its brow. Eärendil now sails the heavens each night as the Star of Eärendil — what we know as Venus. In The Return of the King, the light Frodo receives from Galadriel — "the Light of Eärendil" — is drawn from this very star.

Though unseen in the films, Eärendil’s courage, sacrifice, and light still guide Middle-earth — and us.