Fake news in the Middle Ages: 10 legends that stand the test of time

Before dark web conspiracy theories, people had the tavern. Information in the Middle Ages traveled slowly, mutating with every retelling. What we now call urban legends back then were terrifying theological myths that thousands accepted as facts. Discover ten of the most famous medieval legends that shaped the worldview of Europe for centuries.

In the mid-13th century, there was a rumor that a woman had successfully disguised herself as a man, climbed the ranks of the Catholic Church, and reigned as Pope for several years in the 9th century.

According to the legend, John Anglicus was in fact an exceptionally brilliant English woman who mastered theology. Her secret was supposedly uncovered during a papal procession through Rome, when she went into sudden labor and gave birth right in the middle of the street. While modern historians believe the story is just satire or folklore, it was widely accepted as historical truth during the late Middle Ages.

The urban legend of a noble outlaw who outsmarted the corrupt sheriff of Nottingham and stole from the rich to give to the poor began circulating in oral ballads around the 14th century.

Modern audiences know him as a cheerful hero in green tights, but early medieval versions of Robin were much grittier, violent, and anti-clerical. Historians have spent centuries looking through court records trying to find a definitive Robin Hood. Most conclude he was a complex figure, the medieval manifestation of rebellion against an unfair system.

Originating in the late 12th century through the French romances of Chrétien de Troyes, the Grail was described as the sacred chalice used by Jesus Christ at the Last Supper, and later used to collect his blood during the Crucifixion.

The legend claimed that this vessel possessed miraculous healing powers, granted eternal youth, and provided infinite food. It became an obsession across Western Europe. Knights and nobles genuinely believed the Grail was hidden somewhere in a secluded castle, waiting for a perfectly pure warrior to find it.

Did a heroic king once rule Britain from a golden castle called Camelot, surrounded by a Round Table of knights? The legend of Arthur was popularized in the 1130s by Geoffrey of Monmouth’s History of the Kings of Britain, a mixture of vague fragments of real 5th-century Celtic warlords and doses of pure fiction.

Arthur became the gold standard for medieval chivalry. The urban legend expanded to include his magical sword Excalibur, the wizard Merlin, and the tragic betrayal by his queen, Guinevere. The myth was so powerful that English monarchs, including Edward I, used Arthurian imagery to legitimize their rule, even claiming to have discovered Arthur’s tomb at Glastonbury Abbey in 1191.

The idea of a magical spring capable of reversing aging and curing all sickness is an ancient one, but it became a dominant urban legend during the Middle Ages. The myth was blown up by the Alexander Romance, a fictionalized collection of stories about Alexander the Great that circulated in Europe at the time.

According to these tales, Alexander and his armies searched for the "Water of Life" on the outer edges of the known world. Medieval travelers and mapmakers speculated that this fountain existed somewhere in India or the mythical lands of the East. This legend laid the groundwork that, centuries later, would drive Spanish explorers like Juan Ponce de León to hunt for it in the Americas.

Medieval life was deeply preoccupied with sin, demonic temptation, and the supernatural. When people experienced terrifying nightmares or sleep paralysis, they didn’t have modern psychology to explain it. Instead, they blamed the incubus and succubus.

An incubus was a male demon believed to prey upon sleeping women, while a succubus was a female demon that seduced men. These entities weren’t just folklore, they appeared in serious medieval theological texts. Church scholars even argued about how these demons operated, warning that they could steal human material to create monstrous offspring.

Following the Assyrian conquest of the Kingdom of Israel in the 8th century BCE, ten of the twelve Jewish tribes vanished from the biblical narrative. In the Middle Ages, this historical mystery became a geopolitical urban legend.

European Christians and Jews alike shared the thought that the Ten Lost Tribes were living out past the edges of the mapped world. They were said to be trapped behind the mythical Sambation River, a river made of stones and sand that only stopped flowing on the Sabbath. A major component of this legend was the fear or hope that these millions of hidden warriors would one day cross the river.

The Wandering Jew is one of the most tragic urban legends of the time, first appearing in written European chronicles around the 13th century. The story goes that a Jewish shoemaker or guardsman named Cartaphilus (or Ahasuerus in later versions) taunted Jesus as he carried his cross to Calvary, telling him to hurry up. Jesus supposedly replied: "I am going, but you will wait until I return."

As a result, the man was cursed with immortality and doomed to walk the earth without rest until the Second Coming of Christ. Throughout the Middle Ages, people across Europe claimed to have met this sorrowful traveler, describing him as a knowledgeable man who spoke every language.

In the year 1212, a wave of religious hysteria swept through France and Germany. The resulting story became one of the most heartbreaking urban legends of the era: the Children’s Crusade. The popular tale stated that thousands of unarmed children, inspired by visions, marched toward the Mediterranean Sea, believing the waters would part for them so they could peacefully reclaim Jerusalem. When the sea failed to part, corrupt merchants supposedly loaded them onto ships and sold them into slavery in North Africa.

Beginning in the mid-12th century, rumors spread of Prester John, a wealthy Christian king who ruled a utopian empire somewhere in the heart of Asia or Africa.

The legend reached a peak when a forged letter, supposedly written by Prester John himself, circulated among European monarchs. The letter described a kingdom with rivers filled with gold, the Fountain of Youth, and a mirror through which the king could see his entire empire. During the Crusades, European armies hoped that Prester John’s legions would march from the East to save them.

Red flags

10 signs your home might be in need of urgent maintenance

Image: Roselyn Tirado

The upkeep of a house is never fun—no one wants to spend their hard-earned money and entire weekends fixing what seems like a minor issue. As the saying goes, you’ve got to fix the roof while the sun is shining. Ignoring small problems can lead to far more serious issues down the road, which will certainly cost you a lot more time and money. Identifying the signs early can help prevent major headaches. Here are 10 red flags you should never ignore when it comes to your home.

Image: Mick Haupt

While most cracks are normal and largely harmless—you can often plaster and paint over them yourself—cracks wider than 1/8 inch may indicate foundation movement or structural issues, especially if the crack is visible both inside and outside your home. Location matters too—cracks in load-bearing walls are particularly concerning, so be sure to inspect your basement as well.

If left untreated, foundation problems can open a Pandora’s box of issues and may even lead to structural failure; therefore, it’s essential not to ignore them. Depending on where you live, it’s wise to hire a professional familiar with the area, as the type of soil beneath your foundation may require specialized solutions.

Image: Geetanjal Khanna

Leaky roofs can result from damaged shingles, cracked flashing, or improperly installed gutters, but this is something you definitely don’t want to sleep on. Water intrusion is a home’s worst enemy. Not only does it cause unsightly stains, but it can also weaken the entire structure of the home over time.

To make matters worse, depending on the materials your house is made of, water damage can lead to electrical issues, loss of insulation, and problems like rot or mold. Regular roof inspections can help you tackle repairs in time, save money, and keep you and your family safe, especially if you live in an area prone to storms or strong winds.

Image: Steven Haddock

Unless a ghost is messing with you, flickering lights are often a symptom of more serious electrical problems, such as overloaded circuits or faulty wiring. On the bright side, loose connections at switches or light fixtures can also be the culprit—sometimes, it’s as simple as tightening a wire or replacing a worn-out component.

However, if the flickering happens frequently or in multiple rooms, don’t hesitate to call a licensed electrician. According to the Electrical Safety Foundation International (ESFI), faulty wiring is a leading cause of house fires, responsible for more than 51,000 fires each year in the U.S. alone.

Image: Victoria Kure-Wu

Have you noticed that a drain isn’t working as fast as it used to? In most cases, slow drains are caused by hair, soap scum, or grease buildup, but they can also signal a more serious blockage in the main sewer line. Tree roots often infiltrate older pipes, particularly in homes with clay or cast iron plumbing, which can lead to costly repairs if not addressed early.

To unclog a slow drain—and determine whether a bigger fix might be needed—you can try a commercial drain cleaner (used with caution), or go the DIY route with a mixture of equal parts vinegar and baking soda. Pour it down the drain as it starts to fizz, let it sit for a couple of hours, then flush with hot water. Keep in mind that this method works best for minor clogs and surface buildup.

Image: Francisco Galarza

It should go without saying, but floors are just as important as roofs. Sagging or uneven floors often indicate problems with the home’s structural support system, such as rotting joists or a settling foundation. Causes range from moisture damage and termite infestation to poor construction practices.

Older homes may be especially vulnerable to these issues due to outdated building techniques or the effects of long-term wear and tear. The problem is that sagging or uneven floors can place additional stress on other structural elements, and even put your house at risk of collapsing.

Image: Michael Hamments

Paint that peels, blisters, or cracks is one of the most common telltale signs of moisture infiltration in your walls. A variety of issues can cause this, so don’t panic. Sometimes it’s just a hidden leak or a case of poor ventilation, and minor fixes can often resolve the issue.

That said, don’t ignore it—especially if it recurs or spreads. When moisture gets trapped behind paint, it can weaken the wall’s structure and promote the growth of mold and mildew, which may lead to serious health problems over time. Excess wall moisture can also reduce your home’s insulation efficiency.

Image: Thomas Kelley

Has your energy bill spiked unexpectedly in recent months? If so, you might be dealing with an insulation problem. Damage from moisture, pests, or general wear and tear can all reduce your home’s insulation efficiency. However, before replacing all the insulation, it’s important to identify the source of the problem.

Common culprits include the attic, damaged walls, and gaps around windows and doors. An aging HVAC system may also contribute to inefficiency. Investing in better insulation might seem like an unnecessary expense, but consider this: without proper insulation, you’ll end up paying more in energy bills while still dealing with the discomfort of a poorly insulated home. According to the U.S. Department of Energy, proper insulation can reduce heating and cooling costs by up to 15%.

Image: Ante Hamersmit

Rodents, termites, or ants in your home are more than just unwanted guests—they can cause serious damage. Mice and rats chew through wiring, increasing the risk of fire, while termites can silently destroy wooden structures. More often than not, their presence is a symptom of larger issues, such as cracks in foundations or unseen gaps around doors and windows.

Sealing these entry points and addressing the issue promptly is key to preventing larger infestations and costly structural damage. The National Pest Management Association estimates that termites alone cause over $5 billion in property damage each year.

Image: Troy Bridges

Circuit breakers are designed to protect your home from electrical overloads, which could otherwise lead to fires. If your breaker trips frequently, it may be a sign of outdated wiring, undersized circuits, or malfunctioning appliances. Older homes are particularly vulnerable, as their electrical systems weren’t built to support today’s energy demands.

Unless you're a certified electrician, avoid trying to fix the issue yourself—call a licensed professional instead. Electrical panels contain many hidden dangers, especially in homes with faulty or aging wiring. A poor installation can make things even worse. The last thing you want is to accidentally electrify your water pipes!

Image: Saara Sanamo

Water in the basement is often a sign of poor drainage or foundation leaks. A properly graded yard and functioning gutters should direct water away from your home. Without these, water can seep into basements, causing mold growth, wood rot, and even foundation cracks over time.

According to the Federal Emergency Management Agency (FEMA), even an inch of water in a basement can cause over $25,000 in damage! Installing sump pumps or addressing drainage issues promptly can help prevent flooding and costly repairs down the line.