18 March

Events which occurred on 18 March.

On Earth

• 1941 - J.R.R. Tolkien writes letter 44.
• 1950 - Brad Dourif, who would play Gríma Wormtongue in The Lord of the Rings: The Motion Picture Trilogy, is born.
• 1956 - Tolkien writes a letter to a Mr Sam Gamgee (letter 184).
• 1971 - Tolkien writes letter 322.

In Arda

• T.A. 2510:
  • Borondir is on his way in search of the Éothéod.
• T.A. 3019:
  • The Host of the West marches from Minas Tirith.
  • Frodo comes in sight of the Isenmouthe. He is overtaken by Orcs on the road from Durthang to Udûn.