20 October is the 293rd day of the year (294th in leap years). There are 72 days remaining until the end of the year.
- 1995 - Dumbledore's Army meetings continue undetected: Neville Longbottom succeeds in disarming Hermione Granger, and Parvati Patil was able to reduce a table to dust.
Behind the scenes
- 1944: Veronica Clifford, who played Mrs Mason in the film adaptation of Harry Potter and the Chamber of Secrets, is born.
- 1949: George Harris, the actor who played Kingsley Shacklebolt, is born.
- 1976: Dan Fogler, who played Jacob Kowalski, born.