Events that occurred on 22 December.
 On Earth
- 1914 - Tolkien writes Ferrum et Sanguis: 1914.
- 1920 - Father Christmas writes a letter to J.R.R. Tolkien's children.
- 1941 - Father Christmas writes a letter to J.R.R. Tolkien's children.
- 1951 - Author Charles de Lint is born.
- 2000 - Principal photography for The Lord of the Rings (film series) ends.
- 2004 - The Lord of the Rings: The Third Age is released in Japan.
- 2009 - War of the Fantasy Worlds is published.
- 2017 - The Inklings and King Arthur is published