VIDEO : You?ll Never Believe Where JK Rowling First Wrote the Names of Hogwarts Houses

Harry Potter author J.K Rowling revealed on Twitter that she wrote the name of the Hogwarts houses, Gryffindor, Hufflepuff, Ravenclaw and Slytherin on an airplane sick bag. Rowling has famously said that she first had the idea for Harry Potter while delayed on a train from Manchester to London King?s Cross. She continued to write notes over the next five years on scraps of paper and now we know, also on a sick bag from an airplane.