Elena's first diary entry is addressed to her parents, who died in a car accident.
2. Damon has a scar above his left eyebrow from when Stefan pushed him into a window as children.
3. In season 1, Damon tells Elena he was turned into a vampire by a woman named Katherine.
4. Klaus and Elijah have different accents because they were born in different parts of Europe.
5. The Lockwood family has a curse that turns them into werewolves when they get angry.
6. Damon has a fear of being alone, which is why he is always seeking companionship.