MEDIEVAL WONDERS

What Was the Dancing Plague? Uncover the 10 Strangest Medieval Facts.


Published on June 29, 2024


Image: Gabriel Kiener

Although the Middle Ages often have bad press, it was actually a period of vast kingdoms and significant advancements in farming and architecture. That being said, the era also witnessed some truly bizarre and inexplicable events.

From peculiar dancing diseases to accounts of green children and even instances of corpses being put on trial, here we've compiled 10 of the strangest occurrences that took place during medieval times.

1

The Pig Trials

Image: Kenneth Schipper Vera

Let it not be said that the Middle Ages were lawless times. In fact, in medieval times, anyone could face the full weight of the law! And when we say anyone, we mean anyone. Animals, and particularly pigs for some reason, were occasionally put on trial for various crimes, including murder.

These trials reflected a bizarre legal belief in moral responsibility extending to all living beings, and as we'll explore in the next item, even non-living beings!

2

The Cadaver Courts

Image: Sabina Music Rich

Curiously, there were recurring instances where corpses were tried posthumously for their - real or alleged - crimes. Reflecting a mix of superstition and law, these trials sought justice beyond the grave.

Even members of the Church were not exempt from this bizarre practice. In the year 897, the corpse of the not-so-recently deceased Pope Formosus was exhumed and put on trial. His remains were dressed in papal robes, found guilty of perjury, and finally desecrated. To be fair, it was a time of intense political strife within the Church, but still.

3

The Toadstone Cure

Image: DIRK TOERIEN

Believed to be found in a toad’s head, the mythical toadstone was thought to cure poison and illness. In reality, toadstones had nothing to do with toads; they were often fashioned from the button-like fossilized teeth of a Jurassic ray-finned fish.

The association stemmed from the fact that toads have poison glands in their skin, leading to the assumption that they carried an antidote within their bodies, and it was believed that it took the form of a magical stone.

4

The Dog Saint

Image: Tonia Kraakman

The story of Saint Guinefort is actually quite sad. According to a popular legend, Guinefort the Greyhound belonged to a knight who lived in a castle near Lyon. One day, the knight went hunting and left his infant son in the care of the dog. Upon his return, he found the nursery in chaos, Guinefort with bloody jaws, and his son nowhere to be seen.

Assuming the worst and blinded by grief, the knight slew the poor dog, only to then hear his son crying next to the dead body of a viper, bloody from dog bites. Realizing his mistake, he buried the dog with honors and erected a shrine in its tomb. Soon, local peasants began treating the dog as a mystical healer and protector. A cult of the saint dog persisted for several centuries, despite several efforts by the Church to eradicate it.

5

The Children's Crusade

Image: Jens Auer

According to traditional accounts, in 1212, thousands of children set out from Europe, believing they could peacefully convert Muslims in the Holy Land. However, most never reached their destination, succumbing to starvation, slavery, or simply abandoning the journey due to its inherent hardships.

While the story likely emerged from a blend of factual events and myth, there are credible historical accounts describing similar events, particularly movements led by children rather than solely composed of them, such as the account of twelve-year-old French shepherd boy Stephen of Cloyes.

6

The Formosan Scam

Image: Angela Lo

In the 1700s, a Frenchman named George Psalmanazar claimed to be the first native from the exotic island of Formosa (modern Taiwan) to reach Europe. However, since he knew close to nothing about the real inhabitants of his supposed homeland, he completely fabricated a language and an entire culture.

For some years, he managed to convince many in Britain, but when it was eventually discovered that he was of European origin, he successfully rebranded himself as a theological essayist.

7

Flagellant Movements

Image: Annie Spratt

During the times of the Great Plague, many believed that the terrible disease was a punishment from God for their sins. Following this logic, groups known as flagellants would publicly whip themselves to atone for sins and try to appease divine wrath.

Marching crowds of self-harming fanatics would wander from town to town, gathering more penitents along the way. However, the practice often had the opposite effect intended, as it led to further spread of the disease through their gatherings. Soon, some towns realized that flagellants brought the plague to areas where it had not yet surfaced and began to deny them entry, which only intensified their physical penance.

8

The Green Children of Woolpit

Image: Annie Spratt

In 12th century England, during the reign of King Stephen, two children with green skin reportedly appeared in the small town of Woolpit. They spoke a language that nobody had heard before and only ate raw beans. Over time, their skin gradually returned to a normal color, but their mysterious origin remained unknown.

Historians have debated the tale's authenticity, suggesting that if it is to be taken seriously and not merely as folklore, the children could have been Flemish survivors from a recent battle near their hometown. It is also proposed that their unusual coloration could be attributed to a dietary deficiency acquired during their period of being lost and wandering for many days.

9

Trial by Ordeal

Image: Elimende Inagella

As we have seen, the medieval sense of justice was often bizarre, and rather extreme. Trials by ordeal, such as walking on hot coals or retrieving objects from boiling water, were quite popular. In these cases, survival or lack of injury was considered proof of innocence.

Similar to the method of trial by combat, it was regarded as a means of achieving the "judgment of God." However, in defense of medieval people, it should be noted that the practice was much older, dating back to the Code of Hammurabi, many millennia earlier.

10

Dancing Plague

Image: Ahmad Odeh

In one of history's most perplexing moments, around the year 1518, residents of the French medieval town of Strasbourg were suddenly gripped by a compulsive dancing epidemic. Dozens danced uncontrollably for days, and tragically, some even danced themselves to death.

While mass hysteria is still considered a probable cause, along with the possibility of a mass poisoning of some sort, some scientists speculate that it could have been triggered by a nervous system disorder known as Sydenham chorea, which can result from infection with certain bacterial strains. Symptoms include rapid and often uncoordinated jerking movements, primarily affecting the face, hands, and feet of those afflicted.


Mind games

Genes, rules, and why free will isn’t really free


Published on June 29, 2024


Image: MacDonald Almeida

We like to think we’re in control of our choices, but free will may be more illusion than reality. From brain chemistry to social conditioning, powerful forces shape our behavior long before we become aware of them. While there is still room for change and spontaneous decisions, we are often "hijacked" by unconscious processes. Here are 10 factors that make us more predictable than we might think.

1

The brain acts first

Image: Shawn Day

Just like a quick-draw gunslinger, the brain knows what to do long before we consciously decide to act. Neuroscientist Benjamin Libet’s famous experiments in the 1980s showed that brain activity spikes before a person becomes aware of their decision to move.

In these studies, participants were asked to flex their wrists at random moments. Their brains exhibited a "readiness potential"—a buildup of neural activity—up to 500 milliseconds before they reported having made the decision to move. This suggests that the brain initiates actions before the conscious mind "decides."

2

Genes load the dice

Image: digitale.de

According to some scientists, genetic makeup may influence many personal characteristics—from impulsivity to political beliefs—effectively narrowing the kinds of decisions we're likely to make.

This doesn’t mean our genes entirely shackle us, but they do seem to play a significant role in shaping personality. Twin studies have shown that traits such as risk-taking, patience, and even religiosity may have heritable components.

3

Childhood conditions

Image: Jordan Whitt

Though it may seem obvious, early environments—such as nutrition, stress levels, and parenting—play a powerful role in shaping neural development and future decision-making ability.

Children raised in poverty or wartime conditions show differences in prefrontal cortex development, changes that might affect life choices for decades.

4

Dopamine drives

Image: Maxim Berg

Certain "pleasure chemicals" in the brain—especially dopamine—can heavily steer decision-making without conscious input.

When we anticipate a reward, dopamine surges in brain regions like the striatum, which are involved in evaluating actions and outcomes. This biases us toward actions with immediate gratification—even when we "know better."

5

Habits override choice

Image: Mathew MacQuarrie

Once formed, habits bypass conscious deliberation and begin to operate automatically.

Research shows up to 40% of daily actions are driven by habit. The basal ganglia stores these patterns, allowing us to function on autopilot without making active choices.

6

Split-brain insights

Image: Robina Weermeijer

Patients with severed corpus callosums reveal how the brain constructs post-hoc justifications for actions.

In split-brain studies, when one hemisphere initiates an action, the other often makes up a reason for it, demonstrating that we sometimes confabulate explanations rather than make fully conscious, deliberate choices.

7

Subliminal influence

Image: Chris Zhang

Sometimes, messages received below conscious awareness can still affect behavior.

In controlled studies, priming participants with certain words or images—such as "elderly" or "money"—can alter their actions and choices, even though they don’t realize it happened.

8

Mirror neurons

Image: Михаил Секацкий

We’re wired to mimic others, often without realizing it. While this begins as a survival trait linked to learning in early childhood, its powerful influence can shape our behavior later in life.

First discovered in monkeys and later observed in humans, mirror neurons fire when we see others perform actions. This automatic imitation affects behavior, learning, and even emotional responses—all without conscious intention.

9

Decision fatigue

Image: Wesley Tingey

The more choices we make, the worse our judgment tends to become over time.

For example, studies have shown that judges are more likely to grant parole early in the day. By afternoon, mental exhaustion sets in, and denial rates spike.

10

Cultural conditioning

Image: pavan gupta

Culture shapes our values, desires, and what choices are considered acceptable from birth onward.

Whether you believe in individualism or collectivism, what foods you enjoy, or how you define success—all these are shaped by your cultural environment long before conscious reasoning takes hold.

Looking for an extra scoop of literary fun?

Learn more with our Word of the day

formidable

/ˈfɔrmədəb(ə)l/