18 August

Events that occurred on 18 August

On Earth

• 1973 - Mythcon IV in Santa Barbara, California.
• 1975 - Mythcon VI at Scripps College in Claremont, California.
• 1992 - Tolkien Centenary Conference, a combination of Oxonmoot 1992 and Mythcon XXIII, at Keble College, Oxford.
• 2000 - Mythcon XXXI in Hawaii.
• 2008 - Mythcon XXXIX at Central Connecticut State University in New Britain, Connecticut.
• 2012 - The Return of the Ring, Tolkien Society conference at Loughborough University, England.

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, the Hobbits, and many more, make camp at Helm's Deep.