Which J.K. Rowling novel introduced the wizarding sport of Quidditch to readers?

Harry Potter and the Philosopher’s Stone introduced the wizarding sport of Quidditch to readers.

The first novel describes Quidditch during Harry’s introduction to Hogwarts life. Harry learns the rules, joins Gryffindor’s team as Seeker and plays in his first school match against Slytherin. The game uses flying broomsticks, four types of balls and seven players on each team.

Quidditch became one of the most recognisable elements of Rowling’s fictional world. The sport includes three Chasers, two Beaters, a Keeper and a Seeker. Chasers score with the Quaffle, Beaters defend with Bludgers, and the Seeker pursues the Golden Snitch.

The books’ version of Quidditch later inspired real-world recreational adaptations played on foot. Those versions modify the equipment and rules for safety and practicality. The fictional sport itself first appears in the opening Harry Potter novel, rather than in a later volume focused on a particular tournament.