5 September

Events that occurred on 5 September.

On Earth

• 1970 – The first Mythcon is held at Harvey Mudd College in Claremont, California.
• 1971 - Mythcon 2 in Santa Barbara, California.
• 1975 - Oxonmoot 1975 at the Welsh Poney, Oxford.
• 2000 - Tyalië Tyelelliéva issue 15 is published.
• 2005 - A version of Smith of Wootton Major is released, edited by Verlyn Flieger.
• 2019 - Tolkien Calendar 2020 is published.

In Arda

• T.A. 2:
  • After the victory over Sauron and his stay in Gondor, Isildur sets out for Arnor.
• T.A. 3018:
  • Gandalf is held captive by Saruman on the pinnacle of Orthanc.
  • Boromir travels towards Rivendell to ask for counsel.