The event
A mortal man and an Elf-maiden win a Silmaril from Morgoth’s crown.
On the dating
The Grey Annals place the quest in this period; other texts shift details.
Consequences
Lúthien’s choice of mortality produces a line that runs through Elros to the Kings of Númenor and, at last, to Aragorn and Arwen.
Place
Artifacts
Sources
The Silmarillion · 1977
Posthumously edited. Contains the Ainulindalë, Valaquenta, Quenta Silmarillion, Akallabêth and Of the Rings of Power.
Beren and Lúthien · 2017
Multiple versions of the tale, showing how the story evolved.