Asbestos: A Conspiracy 4,500 Years in the Making
They knew. They always knew.
Nearly 2,000 years ago, Roman historian Pliny the Elder documented asbestos workers dying from "sickness of the lungs"—watching slaves fashion crude respirators from animal bladders while weaving what he called "funeral dress for kings." The people closest to the dust understood the danger. The people farthest away admired the spectacle, collected the profits, and buried the evidence. That pattern never changed.
Asbestos: A Conspiracy 4,500 Years in the Making traces humanity's 4,500-year relationship with the mineral the ancient Greeks named "asbestos"—meaning indestructible. From Stone Age Finnish pottery (2500 BCE) to the $70+ billion in legal damages paid by modern corporations, we uncover how a material praised for safety became a source of sickness, litigation, and grief.
Each episode explores:
- Ancient origins: The salamander myth that persisted for 2,000 years, the Roman tablecloths that cleaned themselves in fire, the sacred flames kept burning with asbestos wicks
- The industrial cover-up: Internal documents proving companies knew asbestos caused cancer since the 1930s—and suppressed the evidence for 40 years
- Modern consequences: Why mesothelioma claims 3,000 American lives annually, and why $30+ billion sits in asbestos trust funds waiting for victims who never file
- The science of denial: How manufactured doubt delayed regulation for decades, using the same tactics as the tobacco industry—sometimes with the same scientists
Whether you're a history enthusiast, legal professional, medical researcher, or someone seeking answers after asbestos exposure, this podcast reveals the uncomfortable truth: the longest-running industrial cover-up in human history isn't ancient history. It's still happening.
The History of Asbestos Podcast is sponsored by Danziger & De Llano, a nationwide mesothelioma law firm with over 30 years of experience and nearly $2 billion recovered for asbestos victims.
If you or a loved one has mesothelioma, visit Dandell.com for a free consultation.
Asbestos: A Conspiracy 4,500 Years in the Making
Episode 8: Marco Polo's Inconvenient Truth — The Ghost in the Manuscripts
Description
In 1298, Marco Polo named his source: a Turkish mining supervisor called Zurficar who spent three years directing asbestos operations for Kublai Khan. There's just one problem — Zurficar appears in no Chinese, Persian, or Mongol records. He exists in 150 manuscript copies of one document and nowhere else.
Episode 8 of Asbestos: A Conspiracy 4,500 Years in the Making investigates why Marco Polo's detailed, accurate account of asbestos production stands virtually alone in the historical record — and why his debunking of the salamander myth failed to displace four centuries of institutional authority.
In this episode:
- The Genoese prison cell where Marco Polo dictated his memoirs to an Arthurian romance writer who'd been imprisoned for fourteen years
- Zurficar — the named eyewitness who described mining, processing, and fire-cleaning asbestos cloth, yet left no trace in any other historical record
- Chinese documentation of "fire-wash cloth" from 237 CE — a thousand years before Marco Polo — complete with their own mythology about fire mice instead of salamanders
- Why the nickname "Il Milione" (Marco of the Million Lies) first appears in 1559, 235 years after Marco Polo's death — and evidence his contemporaries actually believed him
- Christopher Columbus's annotated copy of Marco Polo's Travels, with 366 handwritten notes including a reference to the asbestos passage
- The Vatican's asbestos cloth that Marco Polo attributed to Kublai Khan — which actually came from a Roman-era pagan tomb on the Appian Way
- Why 350 years passed before physician Thomas Browne finally threw a salamander in a fire and proved Marco Polo right
Marco Polo documented what medieval institutions — trade, law, church — never bothered to write down. A material too rare to trade, too exotic to prosecute, too foreign to archive. The institutions that create records never captured it.
Next episode: Thomas Browne throws a salamander into a fire. The myth that wouldn't die finally does.
Resources
Understanding Asbestos Exposure: https://dandell.com/asbestos-exposure/
Mesothelioma Compensation Options: https://dandell.com/mesothelioma-compensation/
About the Firm: https://dandell.com/about/
Free Consultation: https://dandell.com/contact-us/
Asbestos: A Conspiracy 4,500 Years in the Making is sponsored by Danziger & De Llano Mesothelioma Law Firm, a nationwide practice with over 30 years of experience and nearly $2 billion recovered for asbestos victims. If you or someone you love has been diagnosed with mesothelioma, the exposure happened somewhere—and Paul Danziger and Rod De Llano know how to trace it back. For a free consultation, visit https://dandell.com.
Resources:
→ Mesothelioma legal rights: https://dandell.com/mesothelioma/
→ Asbestos exposure sources: https://dandell.com/asbestos-exposure/
→ Asbestos trust funds ($30B+ available): https://dandell.com/asbestos-trust-funds/
→ Free case evaluation: https://dandell.com/contact/
Sister Podcast - MESO: The Mesothelioma Podcast:
http://mesotheliomapodcast.com/
Episode 8: Marco Polo's Inconvenient Truth — Full Transcript
Series: Asbestos: A Conspiracy 4,500 Years in the Making
Episode: 8
Arc: 2 — Medieval Myths & Renaissance Confusion
Published: January 12, 2026
Episode Summary
Marco Polo's 1298 account of asbestos production contains the only named eyewitness source in medieval European literature — a Turkish mining supervisor called Zurficar who spent three years directing operations for Kublai Khan. The problem: Zurficar appears in no Chinese, Persian, or Mongol records. This episode investigates why Marco Polo's accurate, technical description of asbestos mining and processing stands virtually alone in the historical record, and why his debunking of the salamander myth failed to displace four centuries of institutional authority.
Key Facts
- Marco Polo dictated his account from a Genoese prison cell in 1298 to romance writer Rustichello da Pisa
- Zurficar, the Turkish mining supervisor Marco Polo named as his source, appears in zero corroborating documents
- Chinese sources documented fire-wash cloth (huǒ huàn bù) as early as 237 CE — over 1,000 years before Marco Polo
- The nickname "Il Milione" (Marco of the Million Lies) first appears in 1559, 235 years after Marco Polo's death
- Christopher Columbus annotated his copy of Marco Polo's Travels with 366 handwritten notes, including a reference to the asbestos passage
- No medieval trade records, fraud trials, or church inventories document asbestos cloth transactions
- The Vatican's asbestos cloth, which Marco Polo attributed to Kublai Khan, actually came from a Roman-era pagan tomb on the Appian Way
- 350 years passed between Marco Polo's debunking (1298) and Thomas Browne's experimental confirmation (1646)
Full Transcript
Host: In 1298, Marco Polo named his source. A Turkish mining supervisor called Zurficar. Three years in Kublai Khan's service. Ran the whole asbestos operation.
Co-Host: And we can verify this?
Host: He doesn't exist.
Co-Host: What do you mean he doesn't exist?
Host: No Chinese records. No Persian records. No Mongol court documents. The most important witness to medieval asbestos production appears in exactly one document — dictated by a prisoner to a romance novelist in a Genoese jail cell.
Co-Host: That's our primary source?
Host: That's our only source. And that's the mystery. Not whether Marco Polo was lying. But why his account stands completely alone.
Co-Host: Seven hundred years of asbestos history —
Host: And almost nobody else wrote it down.
The Genoese Prison Cell
Host: September 1298. The Genoese navy crushes Venice at the Battle of Curzola. Seven thousand four hundred Venetian prisoners.
Co-Host: Marco Polo among them.
Host: He's forty-four years old. He's been back from China for three years. And now he's sharing a cell with a romance writer.
Co-Host: A romance writer.
Host: Rustichello da Pisa. He'd written Arthurian legends for the future King Edward the First of England. Been rotting in Genoese prison for fourteen years.
Co-Host: Fourteen years. Must've been a terrible writer.
Host: Maybe, but he was just in the wrong navy. Battle of Meloria, 1284. Genoa destroyed Pisa's fleet. Rustichello was one of thousands captured.
Co-Host: And Marco Polo starts talking.
Host: Marco Polo starts talking. Rustichello starts writing. Franco-Italian — the prestige literary language. Dictated memoirs of the most famous journey in European history.
Co-Host: From a jail cell.
Host: From a jail cell. And here's what makes Marco Polo different from every other medieval writer who mentioned asbestos. He names his source.
Co-Host: Wait — he what?
Host: He names his source. Quote: "I, Marco Polo, had a Turkish acquaintance of the name Zurficar, and he was a very clever fellow."
Co-Host: Zurficar.
Host: Probably a corruption of the Persian name Dhu'l-Fiqar — means "Possessor of the Spine." Zurficar had spent three years in Kublai Khan's service, quote, "engaged in the extraction of this salamander."
Co-Host: So Marco didn't just see asbestos cloth. He interviewed the guy running the mining operation.
Host: For three years.
Co-Host: And we can verify this?
Host: No.
Co-Host: Of course not.
Host: No Chinese court records mention Zurficar. No Persian chronicles. No Mongol administrative documents. The name appears in every major manuscript tradition of Marco Polo's Travels — French, Latin, Tuscan, all of them. But outside Marco's account? Nothing.
Co-Host: He's a ghost.
Host: The most important witness to medieval asbestos production exists in exactly one source. A hundred and fifty surviving manuscripts. All traced back to a single conversation in a Genoese prison.
The Technical Process Marco Polo Recorded
Co-Host: That's either the most important eyewitness testimony in medieval history, or —
Host: Or the most elaborate invention. And here's the thing. The content points to eyewitness.
Co-Host: Walk me through it.
Host: What Zurficar described — what Marco Polo recorded — is an industrial process. Not magic. Not legend. They dig into the mountain until they find a vein. Extract the material. Crush it, pound it in copper mortars, wash it to remove the earth. What's left are fibers — quote — "like fibers of wool."
Co-Host: And then?
Host: Spin them. Weave them. Make napkins — tablecloths. They come out dingy, grayish. But here's the trick: you throw them in the fire.
Co-Host: And they come out white.
Host: "White as snow." Fire-cleaning. The organic impurities burn off. The mineral fiber remains.
Co-Host: That's not mysticism. That's quality control.
Host: And seventh-century Chinese sources describe the exact same process.
Chinese Corroboration: Fire Mice, Not Salamanders
Co-Host: Okay wait — we've been beating this dead lizard for seven episodes —
Host: Salamanders aren't lizards.
Co-Host: What?
Host: Amphibians. Moist skin. Related to frogs.
Co-Host: Dude. You're just now telling me this? How many times have I said lizard?
Host: A few.
Co-Host: Seven episodes!
Host: I didn't want to interrupt.
Co-Host: Well. Medieval Europeans thought they lived in fire, so I guess scientific rigor wasn't anyone's strong suit.
Host: Fair point. Anyway. Marco Polo says quote "the Salamander is no beast" — it's a mineral, not an animal. But here's what changes everything. He wasn't the first to figure this out.
Co-Host: The Chinese.
Host: A thousand years before Marco Polo was born. 237 CE. Fire-cloth arrives as tribute at the Wei Dynasty court.
Co-Host: And they believed it?
Host: No. The previous emperor — Cao Pi — had publicly declared that fire-proof cloth was impossible. He'd had his skeptical essay carved into stone.
Co-Host: Oh no.
Host: When the tribute arrived and worked exactly as advertised, they had to scrape his essay off the monument.
Co-Host: History's first public retraction.
Host: The Chinese had a name for it: huǒ huàn bù. "Fire-wash cloth." Fire-laundered cloth. The same fire-cleaning process Marco Polo described a millennium later.
Co-Host: But here's what I want to know. Did the Chinese think it came from salamanders?
Host: No. They had their own mythology. Completely different.
Co-Host: What was it?
Host: Fire mice.
Co-Host: Fire mice.
Host: Huǒ shǔ. Giant rats living in fire mountains, fur so long it could be woven into cloth.
Co-Host: So Europeans invented fire salamanders. Chinese invented fire mice.
Host: Same material. Same properties. Completely independent mythology.
Co-Host: Two cultures trying to explain the same impossible thing.
Host: And both getting it wrong. But the technical descriptions — the mining, the processing, the fire-cleaning — those match perfectly across a thousand years and five thousand miles.
Co-Host: The lies were different. The truth was the same.
Yuan Dynasty Bureaucracy Confirms the Supply Chain
Host: And by the time Marco Polo arrived at Kublai Khan's court, asbestos production was — bureaucratized.
Co-Host: Bureaucratized.
Host: 1267. A finance minister named Ahmad Fanakati submits a proposal encouraging investment in mineral fiber acquisition. Mining operations expand in the Xinjiang region — exactly where Marco Polo places Zurficar's operation.
Co-Host: So he's not describing something exotic. He's describing a government program.
Host: A supply chain. Miners in Central Asia. Weavers at court. Diplomatic gifts for foreign dignitaries.
Co-Host: Including, allegedly, a pope.
Host: We'll get to that.
The "Il Milione" Myth Is Itself a Myth
Host: So here's the story everyone knows. Marco Polo returns to Venice in 1295. He tells tales of Kublai Khan's wealth — millions of this, millions of that. His neighbors mock him. "Marco of the Million Lies." Il Milione.
Co-Host: The man who cried wolf, medieval edition.
Host: On his deathbed, friends beg him to retract his "fables." He refuses. Quote: "I have not told half of what I saw."
Co-Host: Defiant to the end.
Host: It's a great story.
Co-Host: It's not true, is it.
Host: Almost none of it.
Co-Host: Of course.
Host: The nickname Il Milione — Marco of the Millions — the earliest documented source is Giovanni Battista Ramusio. A Venetian editor.
Co-Host: When?
Host: 1559.
Co-Host: Marco Polo died in —
Host: 1324. Two hundred and thirty-five years earlier.
Co-Host: So the "contemporary mockery" —
Host: Invented by a Renaissance editor. Two and a half centuries after the fact.
Co-Host: Do we have any evidence his contemporaries mocked him?
Host: We have evidence they believed him. Dominican friar Francesco Pipino translated the book into Latin in 1302 — four years after it was written — and solemnly affirmed its truthfulness.
Co-Host: The deathbed quote?
Host: First appears in a chronicle from around 1330. Six years after Marco died. No eyewitness attribution.
Co-Host: So even the skepticism about Marco Polo is a myth.
Host: Myths all the way down.
Columbus Took Marco Polo Seriously
Co-Host: What about people who actually used his work? People who took it seriously as a source?
Host: Christopher Columbus.
Co-Host: Columbus read Marco Polo?
Host: Columbus annotated Marco Polo. His personal copy survives — Biblioteca Colombina, Seville. Three hundred and sixty-six handwritten notes in the margins.
Co-Host: And the asbestos passage?
Host: He marked it. "In Rome, a cloth of salamander." No skeptical comment. No question mark. Just — a note for future reference.
Co-Host: Columbus was planning to find the salamander cloth.
Host: Columbus was planning to find everything. The man was making a shopping list for Asia.
Co-Host: Fireproof cloth, spices, gold, someone else's land. Standard explorer checklist.
The Documentary Blind Spot
Host: Here's what should bother you. Medieval Venice was obsessive about record-keeping.
Co-Host: Trade records.
Host: Customs registers. Guild accounts. Price lists. We know the cost of seventeen different grades of wool. We know what Genoese merchants paid for pepper in Constantinople in 1287.
Co-Host: And asbestos?
Host: Nothing.
Co-Host: Nothing.
Host: Not one merchant account book. Not one customs valuation. Not one guild price list. Across three centuries of meticulous Mediterranean commerce, asbestos cloth doesn't appear once.
Co-Host: Because it wasn't being traded.
Host: It was never a commodity. Too rare, too labor-intensive, too far outside normal supply chains. Asbestos was a gift — from Mongol emperors to foreign dignitaries. You couldn't buy it. You had to be given it.
Co-Host: And gifts don't generate customs records.
Host: Gifts don't generate paper trails.
No Fraud Prosecutions Survived
Co-Host: What about fraud?
Host: You'd think there would be fraud cases.
Co-Host: Relic fraud.
Host: Medieval merchants selling fire-proof cloth as holy relics. "This doesn't burn because it touched the True Cross." Churches paid fortunes for that kind of proof.
Co-Host: And when it turned out to be mineral fiber instead of miracle?
Host: You'd expect Inquisition records. Ecclesiastical court proceedings. Names, dates, depositions.
Co-Host: There's nothing?
Host: Nothing. The fraud was profitable. The fraud was plausible. The fraud was never prosecuted — at least not in any record that survived.
Co-Host: Because asbestos was too rare for systematic deception.
Host: You can't build a fraud industry around a material you can barely obtain.
Co-Host: Give it time. Once they figured out how to mine it at scale, the fraud got a lot more sophisticated. Less "holy relic" and more "safe for your children's school ceilings."
Marco Polo Documented What Nobody Else Bothered to Write Down
Host: So here's the paradox. Marco Polo's account is virtually unique —
Co-Host: Not because it's unreliable. Because he documented something the medieval world knew existed and almost never wrote down.
Host: A material that existed in the gaps.
Co-Host: Too rare to trade. Too exotic to prosecute. Too foreign to archive. The institutions that create records — trade, law, church — never captured it.
Host: And Marco Polo just — talked about it in prison.
Co-Host: To a romance writer. Who wrote it down. One of the only accounts we have because nobody else bothered.
The Papal Napkin: Myth Within the Myth
Host: So Marco Polo debunks the salamander myth. Documents the mining process. Names his source. Technical, accurate, verifiable.
Co-Host: And then?
Host: And then he says Kublai Khan sent an asbestos napkin to the Pope. To wrap Jesus's burial shroud.
Co-Host: Of course he does.
Host: Quote: "One of these cloths is now at Rome; it was sent to the Pope by the Great Khan as a precious gift."
Co-Host: Is it there?
Host: There is an asbestos cloth in the Vatican collection.
Co-Host: Okay...
Host: It came from a pagan tomb on the Appian Way.
Co-Host: Of course it did.
Host: Henry Yule — nineteenth-century scholar, definitive edition of Marco Polo's Travels — he actually investigated this. The Vatican cloth is real. About twenty inches long. Genuinely ancient.
Co-Host: But not from Kublai Khan.
Host: Roman-era. Predates Jesus by a significant margin.
Co-Host: So Marco Polo debunks the salamander myth and then immediately repeats a different myth.
Host: He corrects the natural history. He accepts the sacred history. The material is real. The origin story is fabricated.
Co-Host: Myths within myths.
Host: All the way down.
350 Years of Institutional Authority
Host: So where does this leave us? 1298. Marco Polo, in a Genoese prison cell, dictates the truth about asbestos. Mineral, not animal. Geology, not magic. Quote: "The Salamander is no beast."
Co-Host: And for the next three hundred fifty years?
Host: The encyclopedias keep citing Aristotle. The bestiaries keep drawing salamanders in flames. The myth persists.
Co-Host: Why?
Host: Because Marco Polo was a merchant. The encyclopedias were written by scholars, blessed by the Church, copied in monasteries, taught in universities. One eyewitness against four centuries of institutional authority.
Co-Host: Eyewitness never had a chance.
Host: Not until someone with credentials decided to check.
Co-Host: Who?
Host: 1646.
Co-Host: That's — three hundred fifty years later.
Host: Three hundred fifty years. And a physician named Thomas Browne finally does what nobody had bothered to do that entire time.
Co-Host: Which is?
Host: Throw a salamander in a fire and see what happens.
Co-Host: It dies?
Host: It dies.
Co-Host: Four centuries of scholarly debate, exposed as garbage by one barbecue.
Host: Next time.
Episode 9 Preview
Host: Next time: Thomas Browne throws a salamander into a fire. The myth that wouldn't die finally does.
Co-Host: Episode 9: The Myth That Wouldn't Die.
About This Series
Asbestos: A Conspiracy 4,500 Years in the Making traces the complete history of asbestos — from Stone Age Finnish pottery to modern courtrooms. Produced by Danziger & De Llano, a nationwide mesothelioma law firm with over 30 years of experience and nearly $2 billion recovered for asbestos victims.
If you or someone you love has been diagnosed with mesothelioma, visit Dandell.com for a free consultation. With $30+ billion available in asbestos trust funds, families don't have to navigate this alone.
Sources and Further Reading
- Marco Polo, The Travels (Yule-Cordier edition, 1903), Chapter XLII
- Moule, A.C. and Pelliot, Paul, Marco Polo: The Description of the World (1938)
- Vogel, Hans Ulrich, Marco Polo Was in China (Brill, 2013)
- Browne, Thomas, Pseudodoxia Epidemica (1646), Book III, Chapter XIV
- Laufer, Berthold, "Asbestos and Salamander," T'oung Pao 16 (1915)
- Gadrat-Ouerfelli, Christine, Lire Marco Polo au Moyen Âge (Brepols, 2015)
- Columbus's annotated copy: Biblioteca Colombina, Seville
Transcript published for accessibility and educational purposes. For the full audio experience, subscribe to Asbestos: A Conspiracy 4,500 Years in the Making on Apple Podcasts, Spotify, or wherever you listen.