Which Harry Potter novel was the first to be published in 2000?

Harry Potter and the Goblet of Fire was the Harry Potter novel first published in 2000.

The fourth book in the series was published in the United Kingdom on 8 July 2000. It is notably longer than the first three novels and broadens the story beyond Hogwarts through the Triwizard Tournament, an international magical competition involving three schools. Harry is unexpectedly selected as a fourth champion.

The novel also marks a major turning point in the series. Its climax reveals the return of Lord Voldemort and changes the tone of the remaining books. Readers sometimes confuse its publication year with the years of the story’s school calendar or with the film release. The film adaptation arrived in 2005, five years after the novel’s publication.