Literature
The Fellowship of the Ring (1954)
J.R.R. Tolkien
In-fiction date: 1/13/3019
On January 13, Third Age 3019, the Fellowship of the Ring enters the mines of Moria through the West-gate and discovers the tomb of Balin — the entire dwarven colony massacred years before. That night Orcs and a Cave-troll attack in the Chamber of Mazarbul. Fleeing through the mines, the Fellowship reaches the Bridge of Khazad-dûm, where Gandalf faces the Balrog. He drives it back and breaks the bridge beneath it — and is pulled down into the abyss with the creature. The Fellowship escapes without him.