10 December is the 344th day of the year (345th in leap years). There are 21 days remaining.
- 1992: The Gryffindor and Slytherin second-years have double Potions in the afternoon. During class, Harry Potter causes a diversion to allow Hermione Granger some time to steal supplies from Professor Snape's private stores for the Polyjuice Potion.
Behind the scenes
- 1960: Kenneth Branagh, the actor who portrayed Gilderoy Lockhart in Harry Potter and the Chamber of Secrets, is born.