For Harry Potter fans who have re-watched the movies and re-read the books a thousand times, there is honestly not a lot about Harry Potter that we don't know. Because of that, we are constantly looking around for more new and exciting Harry Potter facts.
Why Did Snape Hate Neville?
Anyone who has read the books or seen the movies will know that Snape did not like Neville. He always went out of his way to give Neville a hard time. Why is that? It is because Snape knew what the prophecy concerning Harry said. Snape knew that Neville could have been the Chosen One. Snape resented Neville for not being the Chosen One because if he had been, Lily would still be alive.
Harry Lost His Ability to Speak Parseltongue
During Harry's second year at Hogwarts, we discover that Harry can speak snake language. In the later books, we found out that this is because Harry himself is a Horcrux and that is why he and Voldemort share so many similarities. However, after the seventh book, when the Horcrux inside Harry is destoryed, he loses his ability to communicate with snakes.
OotP Could Have Been Very Different
We all know who dies in Harry Potter and the Order of the Phoenix. What we didn't know, however, is that this HP installment could have gone very differently. Instead of killing off Sirius, J.K. Rowling had considered killing off Arthur Weasley instead. However, J.K. decided against this because the death of Ron's father would have darkened his character and caused the Trio to collapse.