Claim: J. K. Rowling wrote Harry Potter and the Philosopher's Stone.
Evidence: Joanne Rowling , -LRB- -LSB- ˈrəʊlɪŋ -RSB- born 31 July 1965 -RRB- , pen names J. K. Rowling and Robert Galbraith , is a British novelist , screenwriter and film producer best known as the author of the Harry Potter fantasy series.
Since the release of the first novel , Harry Potter and the Philosopher 's Stone , on 26 June 1997 , the books have found immense popularity , critical acclaim and commercial success worldwide.