This Day In History: July 21

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On July 21, 2007, the , Harry Potter and the Deathly Hallows, is released, with an initial print run of 12 million copies in the United States alone. Like each of the previous Harry Potter novels, Deathly Hallows was slated to be made into a major Hollywood film.

The bespectacled boy wizard Harry Potter is the brainchild of the British author J.K. Rowling. Rowling鈥檚 first novel, Harry Potter and the Philosopher鈥檚 Stone, debuted in Britain in 1997 (it was retitled Harry Potter and the Sorcerer鈥檚 Stone when it was released in America the next year) and went on to become an international bestseller. Children and adults alike were captivated by Harry, his friends Ron Weasley and Hermione Granger and their adventures at the Hogwarts School of Witchcraft and Wizardry. The books, which chronicled Harry鈥檚 struggles against his enemy, the evil Lord Voldemort, have sold over 400 million copies and been translated into more than 60 languages. The series is also credited with boosting childhood literacy around the globe.

Spawning a series of blockbuster films, video games and other merchandise, the Harry Potter series transformed J.K. Rowling into the highest-earning author in history. The first movie in the series, Harry Potter and the Sorcerer鈥檚 Stone, opened in America on November 16, 2001. Directed by Chris Columbus (Home Alone, Mrs. Doubtfire), the film starred British actor Daniel Radcliffe as Harry, Rupert Grint as Ron and Emma Watson in the role of Hermione. Columbus also directed the second film in the series, Harry Potter and the Chamber of Secrets, which premiered in the United States on November 14, 2002. The final book was adapted into two movies: Harry Potter and the Deathly Hallows 鈥 Part 1 (2010) and Harry Potter and the Deathly Hallows 鈥 Part 2 (2011).