1 - The author, J.K. Rowling, and the wizard Harry Potter were both born on July 31.
2 - J.K. Rowling wrote the last chapter of Harry Potter in 1990, seven years before releasing the first book.
3- The first Harry Potter book was published in 1997 and had only 500 copies in the first edition, 300 went to libraries.
4- J.K.Rowling said that the Harry Potter story came to her mind during a train ride. Remembering childhood games with her neighbors, whose last name was Potter.
5- Maggie Smith, who played Professor Minerva McGonagall, battled breast cancer during the recording of the last film in the saga. She didn't stop acting because she didn't want to disappoint fans.