Events that occurred on 1 September.
 On Earth
- 1938 - J.R.R. Tolkien goes on holiday to recuperate (see Letter 33).
- 1971 - Actor Dave Wittenberg is born.
- 1977 - Cliffs Notes on Tolkien's The Lord of the Rings and The Hobbit is published.
- 1989 - Oliphaunt is published.
- 2009 - The Lord of the Films is published.
- 2011 - A Tolkien Tapestry is published.
- 2011 - A Critical Companion to J.R.R. Tolkien: A Literary Reference to His Life and Works is published.