18 August

Events that occurred on 18 August
== In Arda ==
* T.A. 3018:
** Gandalf is held captive by Saruman on the pinnacle of Orthanc.
** Boromir travels towards Rivendell to ask for counsel.
* T.A. 3019:
** A riding of Elessar, Gandalf, Celeborn, Galadriel, the Hobbits, and many more, make camp at Helm's Deep.