Ready for a deep dive into 10 things you never knew about the plague? From bizarre bacterial tricks to heroic village quarantines, this roundup serves up a blend of chilling facts and surprising twists—delivered in a fun, conversational tone that still respects the gravity of the disease.
10 There Are Different Types
Most people picture the bubonic plague when they hear the word “plague,” but that’s merely one of three distinct varieties. The bubonic form earns its name from the swollen lymph nodes—called “buboes”—that appear on sufferers. This type spreads exclusively via flea bites or direct blood contact with an infected flea; it cannot hop from person to person.
In contrast, septicemic plague spreads only through skin breaches and blood exposure. It intensifies as the bacteria multiply within the bloodstream, sharing many symptoms with bubonic plague—fever, chills, etc.—but without the hallmark buboes.
The third variety, pneumonic plague, is the only one capable of airborne transmission, allowing it to pass directly from one individual (or animal) to another simply by breathing in close proximity. These three types can mutate into one another; notably, untreated bubonic plague often evolves into pneumonic or septicemic complications. Recent DNA evidence even suggests that the infamous Black Death was driven not by bubonic but by the faster‑spreading pneumonic plague.
9 It Originated In China
Scientists have traced the earliest presence of bubonic plague back to China, more than 2,600 years ago. By analyzing the bacterial structures of 17 distinct strains, researchers mapped the disease’s journey along the Silk Road, pinpointing a single ancestral strain that only began spreading beyond China in the last six centuries, hitching rides on rats aboard ships departing Chinese ports.
In 1409, plague‑laden vessels carried the disease to East Africa. From there, it radiated outward—westward into Europe and eastward toward Hawaii. By the late 1800s, an epidemic in Yunnan province propelled the plague across the Pacific, eventually reaching the United States.
8 The Village That Sacrificed Itself
In 1665, a tailor from Eyam, a Derbyshire village, ordered cloth from London. The shipment arrived not only with fabric but also with the plague, already ravaging the capital. As deaths mounted, villagers realized the disease hadn’t yet leapt to neighboring towns. Guided by clergyman William Mompesson, they chose self‑quarantine, sealing themselves inside the infected hamlet.
The quarantine began in June 1666. No one entered or left. Nearby communities placed food supplies at designated drop‑off points far outside the village limits. Before the lockdown, 78 residents had perished; by its end, the toll rose to 256. When the villagers finally reopened, they burned furniture and clothing, hoping to eradicate any lingering pathogens.
The sacrifice paid off: surrounding villages reported zero plague cases. Mompesson lost his wife Katherine to the disease, yet he survived, embodying the community’s tragic resilience.
7 Conspiracy Theorists Used It To Persecute Jews
During the 14th‑century devastation, Christians and Jews turned the plague into a blame game. After an estimated 25 million died in early 1348, rumors swirled that the disease was a Jewish plot to eradicate Christianity, allegedly originating in Toledo, Spain, and spreading across Europe.
The Count of Savoy launched raids, interrogating Jews and extracting confessions—often under torture—claiming they had poisoned municipal water supplies. He dispatched these confessions as warnings; other towns took them seriously, burning Jewish settlements and murdering countless individuals.
In Strasbourg, nobles and city officials debated massacring their Jewish population, reasoning that eliminating them would both curb the plague and erase creditors. On Valentine’s Day 1349, roughly 2,000 Jews were burned on a massive wooden platform, their wealth seized and redistributed among Christian aristocrats. Yet the plague still struck Strasbourg, claiming 16,000 lives.
6 The Plague Wasn’t A Guaranteed Killer
Many assume the plague was a death sentence, but that perception stems from its massive societal impact rather than individual outcomes. Numerous accounts tell of people who were either immune or survived after contracting the disease. One such survivor was Marshall Howe, an Eyam resident who, after recovering, helped bury the dead.
According to legend, while carrying a corpse to its grave, the supposedly dead man begged for food, only to recover later. Another Eyam inhabitant, Margaret Blackwell, survived after quenching her thirst with a pot of melted bacon fat.
Analyses of Black Death victims’ skeletal remains reveal most had pre‑existing ailments—malnutrition or other diseases—before infection. While the plague certainly killed many healthy individuals, modern research suggests that a substantial portion of those in good health stood a realistic chance of survival.
5 A Teenage Nostradamus Became A Successful Plague Doctor
Most remember Nostradamus for his cryptic prophecies, yet in 1518 he roamed the French countryside as a plague doctor at just 15 years old. After years of wandering, he re‑enrolled at university (having left at 14) and earned his medical degree in 1522, continuing his work as a plague physician—apparently immune to the disease.
In his writings, Nostradamus expressed frustration that his treatments merely comforted patients rather than curing them. Nevertheless, he pioneered a more rational approach: emphasizing cleanliness, fresh air, and proper disposal of infected corpses—contrasting sharply with contemporary practices like leeching and bloodletting.
He also adhered to the miasma theory, believing bad air caused the plague, and created a spice‑and‑rose lozenge to ease symptoms. His success attracted generous donations from Provence residents, allowing him to sustain his medical endeavors.
4 It Changed World Culture
The plague’s sweeping devastation left a world forever altered. Confronted with mortality, artists of the 14th and 16th centuries began depicting darker themes—religious works featured the dead, and hell was rendered more often than heaven, sometimes as a literal hell on Earth.
One eerie artistic shift was the emergence of the “transi” tomb sculpture, which portrayed the deceased in rotting flesh or skeletal form, a stark departure from earlier serene, resting depictions.
Beyond content, the plague reshaped artistic quality and technique. As the disease indiscriminately claimed masters and apprentices alike, the loss of seasoned artists forced a rapid evolution in style, influencing the next generation’s approach to composition and execution.
3 The Plague Bacteria Starved Fleas
Bubonic plague spreads via fleas, but the underlying mechanism is far more unsettling. Fleas feed on animal blood, as does the plague bacterium. When a flea ingests infected blood, the bacteria colonize its stomach, clogging the digestive tract and often killing the flea.
While the flea is dying, it becomes ravenously hungry, prompting it to bite more frequently and seek new hosts, thereby accelerating disease transmission.
Cats and rats are especially vulnerable to the plague, further aiding its spread. As rodent populations decimate, the starving fleas turn to alternative hosts—domestic animals and humans. Interestingly, dogs possess a natural resistance; even repeated flea bites rarely result in infection.
2 Death‑Bringing Plague Ships
Ships were among the quickest vectors for plague dissemination. In 1347, Italian vessels ferried the disease from Constantinople to Alexandria, then to Marseilles, and onward to Venice, Genoa, and the rest of Europe.
Why didn’t captains simply halt? The plague’s stealthy incubation meant ships could sail for weeks before any crew showed symptoms. Fleas first infested the ship’s rat population, then jumped to humans; even after a human bite, up to five more days could pass before illness manifested.
Thus, a trading ship could remain a “death ship” for nearly a month before anyone aboard realized anything was wrong. Rats typically avoided direct human contact, but plague‑laden fleas would hop to new rat hosts once the ship docked, or hide in cargo that later spread the disease throughout the destination city.
1 Believed Causes Of The Plague
Faced with relentless illness and death, survivors searched for explanations. One prevalent belief blamed humanity’s own sinfulness, citing biblical passages where God wielded pestilence as punishment for the unholy.
In Revelation, Pestilence appears as one of the Four Horsemen of the Apocalypse, leading many to view the plague as a harbinger of the world’s end. For nobles, this narrative offered a convenient pretext to regulate perceived immoral activities—gambling, brothels, and the like—by invoking divine wrath.
Contemporary cure theories mirrored these cause theories. The prevailing humoral theory posited that health depended on a balance of bodily fluids; extrapolating, some argued that the universe itself required balance, spawning astrological explanations for the plague’s outbreak.
Astrologer Geoffrey de Meaux attempted to predict the plague’s duration, vulnerable cities, and potential victims by analyzing planetary positions within the zodiac, linking celestial arrangements to earthly disease patterns.