Fear of witches among the Kaguru of Tanzania is extreme: some prefer to defecate inside their huts rather than be alone in the dark at night.

At a Johns Hopkins campus hospital in 1920, behavioral psychologists conducted an experiment with a nine-month-old boy known as Little Albert, who was given a white rat to play with. The scientists then made loud noises behind Albert’s head while he played, conditioning in him a fear of other furry animals and objects, previously sources of joy. Albert’s mother, a wet nurse at a nearby hospital, was paid one dollar for her son’s participation.

Residents of North Yorkshire from the eleventh to fourteenth centuries were so afraid of the dead rising to attack the living that they would dismember, decapitate, burn, and otherwise mutilate corpses before burying them. The process was generally undertaken shortly after death, when the bones were still soft.

A radio broadcast based on The War of the Worlds brought pandemonium to Quito, Ecuador, in 1949, as thousands of people attempted to escape impending Martian gas raids. A mob set fire to the radio station’s building, killing fifteen inside. Authorities were slow to respond; most police and soldiers had been sent to the countryside to fend off the aliens.

Eighth-century Persian scholar Ibn al-Muqaffa recorded a parable describing human existence. A man, fearing an elephant, dangles himself into a pit to hide but soon realizes a dragon waits at the bottom and rats are gnawing at the branches he’s holding on to. He then notices a beehive, tastes its honey, and becomes “diverted, unaware, preoccupied with that sweetness.” While he’s distracted, the rats finish gnawing the branches, and the man falls into the dragon’s mouth.