Open thread 222

The year 222 BCE saw the Roman Emperor Elagabalus assassinated by the Praetorian Guard, to be replaced by Alexander Severus, who was only 13 years old, young enough to have attended Hogwarts and studied potions under a teacher with whom he had a name in common.

Or, alternatively, to have attended the fictional Walt Whitman High School in Los Angeles, where he might have learned about the assassination of his predecessor in a history class in Room 222.