
Interest and belief in revenants (one that returns after death or a long absence) surged in the Middle Ages in Europe. Though in most modern stories the classic way to become a vampire is to be bitten by one, that is a relatively new twist. In his book “Vampires, Burial, and Death: Folklore and Reality” (Yale, 2008), folklorist Paul Barber noted that centuries ago, “Often potential revenants can be identified at birth, usually by some abnormality, some defect, as when a child is born with teeth. Similarly suspicious are children born with an extra nipple (in Romania, for example); with a lack of cartilage in the nose, or a split lower lip (in Russia) … When a child is born with a red caul, or amniotic membrane, covering its head, this was regarded throughout much of Europe as presumptive evidence that it is destined to return from the dead.” Such minor deformities were looked upon as evil omens at the time.