Events that occurred on 22 October.
 On Earth
- 1920 - Michael Tolkien, J.R.R. Tolkien's second son, is born.
- 1927 - Actor James Grout is born.
- 1938 - Actor and narrator Derek Jacobi is born.
- 1945 - J.R.R. Tolkien writes Letter 104.
- 1955 - C.S. Lewis wrote "The Dethronement of Power", a review of The Two Towers and The Return of the King published in Time and Tide.
- 1962 - O Gnomo, the first Portuguese translation of The Hobbit, is published.
- 2002 - The PC version of The Fellowship of the Ring is released in North America.
- 2019 - la BnF's exhibition "Tolkien, voyage en Terre du Milieu" opens.