You never saw professor Cuthbert Binns, you never saw Peeves, you never found out that the Chamber of Secrets was opened before Harry’s second year, you never knew that Harry got his Firebolt for Christmas from Sirius Black and that it was examined for jinxes by McGonagall, you would have never realized that the Beaubatons came in a carriage, you would never know about Harry’s “lifetime Quidditch ban,” you would never know who Marietta Edgecombe is and that she told Umbridge about Dumbledore’s Army, you would not know that Umbridge sent the dementors to Little Whinging, and you would not know that Neville can see the thestrals too. (I’m not sure what category this would go in) Also, Happy Birthday to J.K. Rowling and Harry Potter!!!!!!!!