1. The first Harry Potter novel was published in 1998, the same year the Battle of Hogwarts took place. Hence:
2. In Greek mythology, the seer Cassandra was cursed so that none would believe her prophecies. Professor Trelawney’s great-grandmother’s name was Cassandra.
3. The Mirror of Erised* shows a person’s deepest wish. When Dumbledore looked he saw the same thing Harry did: his family happy and reunited.
*Erised is desire spelled backward.