Events that occurred on 1 December.
 On Earth
- 1897 - Actor Cyril Ritchard is born.
- 1913 - J.R.R. Tolkien is elected president of Stapledon Society, a student body at Exeter College.
- 1914 - Tolkien's close friend at Oxford, Geoffrey Bache Smith, enters service with the Oxfordshire and Buckinghamshire Light Infantry.
- 1954 - J.R.R. Tolkien starts writing a letter to Rayner Heppenstall.
- 1973 - Actor Duncan McIntyre dies.
- 1975 - An Extrapolation on The Silmarillion is published.
- 1976 - Actor Dean O'Gorman is born.
- 1986 - Evocation of Virgil in Tolkien's Art is published.
- 1995 - J.R.R. Tolkien (Writers and Their Work) is published.
- 2003 - Gollum: How We Made Movie Magic is published.
- 2003 - Tolkien: A Cultural Phenomenon is published.
- 2003 – The Lord of the Rings: The Return of the King premières in Wellington, New Zealand.
- 2007 - Chesterton and Tolkien as Theologians is published.
- 2009 - The Lord of the Rings Online: Siege of Mirkwood is released in North America.
- 2009 - Born of Hope is released online.
- 2010 - Middle-earth and Beyond: Essays on the World of J.R.R. Tolkien is published.
- 2014 - The Hobbit: The Battle of the Five Armies premières in Leicester Square, London.
- 2017 - Death and Immortality in Middle-earth is published.