We're raising our goblets and sending sparks from our wands in celebration of JK Rowling's birthday - yes, the woman who brought us Harry Potter was born today 47 years ago. She didn't encounter any Voldemort activity a year afterwards, mind.

We're pondering what she might be receiving for her birthday - after all, appearing at Friday's Olympic Opening Ceremony is a pretty amazing gift in itself.

But as a gift to you, readers and Harry Potter fans, here are 10 facts about the birthday lady you may not have known. Enjoy!

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  • As a child JK Rowling's favourite book was The Little White Horse by Elizabeth Goudge. PHOTO: PA

  • JK Rowling insisted on using British actors for the Harry Potter films PHOTO: PA

  • JK Rowling and her husband (an anaesthetist) have no plans to stop working despite her multi million pound fortune, as she thinks working sets a good example to her children PHOTO: PA

  • JK Rowling goes on Harry Potter fan sites - she once visited the chatroom of popular site Mugglenet, and got told to keep quiet by regulars as she didn't know enough about Harry Potter PHOTO: PA

  • JK Rowling typed Harry Potter and the Philosopher's Stone on a typewriter PHOTO: PA

  • After graduating, and before starting the Harry Potter books, JK Rowling worked as a researcher at Amnesty International PHOTO: PA

  • Before she finished the books, she let Alan Rickman in on the whole story, so that he could play the character of Severus Snape better in the films PHOTO: PA

  • Harry Potter and JK Rowling have the same birthday, 31st July PHOTO: PA

  • Her preferred Hogwarts house would be Gryffindor (the same house as Harry, Ron and Hermoine) PHOTO: PA

  • Her first fan letter was from a reader called Francesca Gray. She thought JK Rowling was a man and started her letter, 'Dear Sir...' PHOTO: PA