St Augustine first referred to déjà vu in 400AD as "false memoriae" However, since the late nineteenth century, when there was a flurry of research (Wigan, 1844, "the sentiment of persistence"; ...

Déjà vu is a French term that means “already seen.” It describes the strange feeling that you’re repeating a moment, even though it’s happening for the first time. It’s like your mind plays a trick, ...