The world hasn’t been the same since 1997. It’s over a couple of decades older, for a start. That’s the year J.K. Rowling published Harry Potter and The Philosopher’s Stone, and introduced us to the Hogwarts school, Harry’s pet owl Hedwig and the know-all student Hermione Granger. But as you’re a Harry Potter wiz, so you knew these things already, right? Of course you did.