Which Harry Potter novel by J.K. Rowling was released first in the United States and United Kingdom on the same date?

Harry Potter and the Deathly Hallows was released simultaneously in the United States and United Kingdom on 21 July 2007.

It is the seventh and final novel in Rowling’s original Harry Potter series. Bloomsbury published the British edition, while Scholastic published the American edition. The coordinated release was a major international publishing event, with bookstores holding midnight launch celebrations for readers who wanted the book immediately.

The title refers to three legendary magical objects: the Elder Wand, the Resurrection Stone, and the Cloak of Invisibility. Harry, Ron, and Hermione spend much of the novel away from Hogwarts while searching for Horcruxes and attempting to defeat Lord Voldemort.

Earlier books in the series had different British and American publication dates. The final novel’s shared release date helped limit spoilers and made the conclusion available to readers in both major English-language markets at the same time.