July 31

{{Date|ordinal = 212th|previous = July 30|next = August 1|zodiac = Leo|births = *1965 - Joanne Kathleen Rowling, known by the pen name JK Rowling, is a British author famous for writing the Harry Potter series. She was the first person to ever become a billionaire from writing books, but has since lost her billionaire status by donating to charity.

Fictional

 * 1989 - Harry Potter is the protagonist of the British series of the same name by JK Rowling. In the series, Harry discovers he is a wizard and attends a magical school called Hogwarts. The birthday is based on the author's own birthday.}}