Which J.K. Rowling book explains the origins of Quidditch?

Quidditch Through the Ages explains the fictional history and origins of Quidditch.

The book was published in 2001 as a companion volume to the Harry Potter series. It is presented as a Hogwarts library book written by Kennilworthy Whisp, although the real-world edition credits J.K. Rowling as the creator of the text. The work describes the development of the wizarding sport, its rules, equipment, teams, and historical controversies.

Quidditch is played by two teams riding flying broomsticks. Players use a Quaffle, Bludgers, and a Golden Snitch, with the Seeker traditionally earning 150 points for catching the Snitch. The sport is a recurring part of Harry’s life at Hogwarts.

The title is sometimes confused with Fantastic Beasts and Where to Find Them, another fictional Hogwarts textbook published as a companion book. The two works cover different subjects in the Wizarding World.