When J.K. Rowling learned Harry Potter would be published
Best-selling author 'walked on air for days' after inking book deal
In the same interview, Rowling actually ranked that life-changing moment just below another key life event — the day she gave birth to her daughter, Jessica. (Since then, she has also given birth to a son named David and a second daughter named Mackenzie.)
Her most famous offspring, however — Harry Potter — has since helped Rowling sell more than 500 million books around the world, according to sales figures quoted on her website.
In addition to Harry's ongoing popularity and commercial success, there is something else Rowling can celebrate about her famous wizard character — his given birthday of July 31, which is also her own.