Podcast
So Supernatural
The host highlighted the title as containing what might be the earliest written description of déjà vu, pointing to a scene where the protagonist explores an unfamiliar castle yet feels an eerie sense of familiarity. This observation was used to illustrate the historical roots of the phenomenon rather than to endorse the novel itself.
Episode: THE UNKNOWN: Déjà Vu
The novel contained an early written record relating to the phenomenon of dj vu, describing a sequence where the main character felt a sense of familiarity while exploring an unfamiliar old castle.
The first written record of it might be from an 1815 novel. Though the term deja vu didn't even exist at the time. But the novel is called Guy Mannering, or The Astrologer.
At one point, there's a sequence where the main character is exploring an old castle he's never been to before. But the whole time he's there, he gets this eerie sense that it feels familiar.