Asbestos: A Conspiracy 4,500 Years in the Making

Episode 9: The Myth That Wouldn't Die — How Science Finally Killed the Salamander Legend

AsbestosPodcast.com Season 1 Episode 9

When did science finally kill the salamander myth? Not in 1646, when Thomas Browne published his famous debunking—the myth was already dead by then. Renaissance physicians had been burning salamanders and publishing the results since 1537. Browne's contribution was compiling evidence that was nearly a century old. The real question: why did it take 350 years for Marco Polo's explicit 1298 debunking to reach English scholars?

This episode closes our three-part examination of the salamander legend by tracing how myths persist even when evidence contradicts them.

In this episode:

  • Pietro Andrea Mattioli's 1554 salamander experiment—published in a book that sold 32,000 copies, the Renaissance's bestseller
  • The "citation laundering" that kept Polo's debunking out of English translations for 350 years
  • The Royal Society's 1684 experiments with asbestos cloth, measured down to the grain
  • Why the Salamander Association formed in the 1900s—six years after physicians documented lung disease in asbestos workers (1897)
  • How 54 years separated Werner's 1774 mineralogy textbook from the first US asbestos patent—and the industrial era that followed

Who this episode is for: History enthusiasts interested in how misinformation persists across centuries. Researchers tracing the asbestos industry's knowledge timeline. Family members of mesothelioma patients seeking to understand the corporate cover-up's deep roots. Anyone who's wondered how workers could be exposed for decades before anyone "officially" knew the dangers.

Expert perspective: "The salamander myth didn't leave a paper trail. The asbestos industry did," notes Paul Danziger, founding partner of Danziger & De Llano with over 30 years of mesothelioma litigation experience. "Understanding how misinformation persisted helps us trace how companies suppressed evidence—and why those documents matter in court today."

Resources: 

→ Mesothelioma overview: https://dandell.com/mesothelioma/ 

→ Asbestos exposure sources: https://dandell.com/asbestos-exposure/ 

→ Free consultation: https://dandell.com/contact-us/

About the sponsor: Danziger & De Llano is a nationwide mesothelioma law firm with over 30 years of experience and nearly $2 billion recovered for asbestos victims. The team includes advocates who have lost their own family members to asbestos-related diseases—Dave Foster lost his father to asbestos lung cancer; Anna Jackson lost her husband. For a free consultation, visit dandell.com.


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 9: The Myth That Wouldn't Die — How Science Finally Killed the Salamander Legend

Asbestos: A Conspiracy 4,500 Years in the Making

Episode: 9
Arc: Medieval Myths & Renaissance Confusion (Arc 2 Finale)
Release Date: January 19, 2026

Key Takeaways

  1. The salamander myth was scientifically debunked by 1554 — Pietro Andrea Mattioli, personal physician to the Holy Roman Emperor, published experimental proof that salamanders die immediately in fire, nearly a century before Thomas Browne's famous 1646 compilation.
  2. 350 years of "citation laundering" — Marco Polo explicitly called the salamander myth "fabulous nonsense" in 1298, but his debunking was edited out of English translations, allowing the myth to persist until Browne compiled evidence that was already centuries old.
  3. The tragic irony of the Salamander Association — In the early 1900s, American asbestos insulation workers named their union after the mythical fireproof creature, adopting the symbol of the very myth that obscured what was killing them—even though medical evidence of asbestos dangers had been documented since 1897.
  4. Beliefs don't die when evidence appears — The salamander myth survived in Breton peasant superstition until at least 1906, demonstrating how institutional knowledge and folk belief can diverge for centuries.
  5. The myth's legacy continues in asbestos litigation — Understanding how misinformation persisted helps mesothelioma lawyers trace the corporate cover-up that replaced one myth with another: that asbestos was safe.

Episode Summary

This episode concludes our three-part examination of the salamander myth by revealing how science finally killed a legend that had persisted for over four thousand years. The conventional story credits Sir Thomas Browne's 1646 Pseudodoxia Epidemica with debunking the myth, but the evidence shows the salamander legend was already dead—killed by Renaissance physicians who actually conducted the experiments Browne merely compiled.

Pietro Andrea Mattioli (1554), Amatus Lusitanus (1553), and Antonio Brassavolus (1537) all threw salamanders into fires and published their findings in widely circulated texts. Mattioli's commentary on Dioscorides sold 32,000 copies—the Renaissance's best-selling scientific book. Yet the myth persisted because Marco Polo's explicit 1298 debunking was edited out of English translations, creating a 350-year gap in the scholarly record.

The Royal Society conducted formal experiments in 1684, and by 1728 Ephraim Chambers' Cyclopaedia didn't even mention the salamander myth in its asbestos entry—it simply wasn't worth debunking anymore. But the most tragic chapter came in the early 1900s when American asbestos workers formed the Salamander Association, adopting as their symbol the very myth that obscured what the material was doing to their bodies. By 1897, physicians had already documented lung problems in asbestos workers. The workers didn't know. The companies would soon find out—and bury the evidence.

Resources mentioned:

Full Transcript

The Death of a Myth: 1646

Host: 1646. A physician's study in Norwich. Someone picks up a salamander and throws it into the fire.

Cohost: It dies.

Host: Immediately. Quote: "It dieth immediately therein."

Cohost: Good.

Host: But here's the thing. We're not killing the myth today. We're confirming it's already dead. The salamander myth was killed centuries before Browne. We're just reading the autopsy.

Thomas Browne and the Epidemic of False Beliefs

Host: Thomas Browne wasn't interested in salamanders specifically. He was interested in error. How it spreads. Why it persists. Who benefits from not correcting it.

Cohost: A seventeenth-century fact-checker.

Host: Exactly. He called his book Pseudodoxia Epidemica—"Epidemic of false beliefs." Published 1646. Six editions by 1672. Every time he found another myth, he added another chapter. Elephants with no joints. Badgers with legs shorter on one side. Whether dead bodies bleed in the presence of their murderers.

Cohost: And salamanders.

Host: Book Three, Chapter Fourteen. "Of the Salamander." Quote: "That a Salamander is able to live in flames, to endure and put out fire, is an assertion not only of great antiquity but confirmed by frequent experience."

Cohost: "Confirmed by frequent experience."

Host: He's being sarcastic. Browne goes on to cite the actual experiments—the people who actually threw salamanders into fires.

Cohost: He didn't do it himself?

Host: Here's the thing. Browne probably didn't burn any salamanders personally. His contribution was compiling the evidence.

The Renaissance Physicians Who Actually Did the Experiments

Cohost: Who actually did the experiments?

Host: Pietro Andrea Mattioli. 1554. Personal physician to the Holy Roman Emperor. His commentary on Dioscorides sold thirty-two thousand copies between 1544 and 1578.

Cohost: Thirty-two thousand.

Host: The Renaissance's best-selling scientific book. And in it, Mattioli writes—in Latin—"facto periculo, igne exustam brevi salamandram vidimus."

Cohost: Which means?

Host: "Having made trial, we saw a salamander burnt in a short time by fire."

Cohost: So the evidence was out there. In 1554.

Host: For almost a century before Browne. Amatus Lusitanus in 1553. Antonio Brassavolus in 1537. They all burned salamanders, all published the results, all said the myth was nonsense.

Cohost: They all burned salamanders?

Host: Brassavolus adds a vivid detail. Quote: "since I saw a salamander burned at great personal risk to myself."

Cohost: Personal risk from a salamander?

Host: The fluid nearly spurted into his mouth. Salamanders secrete toxins through their skin. Not venomous—poisonous. It won't kill you, but you don't want it in your eyes or mouth.

Cohost: Commitment to science.

The Browne-Polo Mystery: 350 Years of Citation Laundering

Host: Here's the puzzle. Thomas Browne cites Marco Polo—calls him Paulus Venetus—for the mineral observation. The papal napkin. The fact that asbestos comes from the earth, not a salamander.

Cohost: Makes sense.

Host: But he doesn't cite Polo's explicit debunking. "The Salamander is no beast, as they allege in our part of the world... any other accounts are fabulous nonsense." That quote. Browne doesn't use it.

Cohost: Why not?

Host: We think he never saw it.

Cohost: How is that possible? Polo was famous.

Host: The English versions of Marco Polo available before 1646—John Frampton's 1579 translation, Samuel Purchas's 1625 compilation—they were translations of translations. Abridged. Edited. Purchas in particular was documented as "unfaithful" as an editor.

Cohost: So the most powerful debunking—

Host: May have been cut. Polo's technical description survived. His rhetorical flourish—"fabulous nonsense"—got lost in transmission.

Cohost: Three hundred fifty years of citation laundering.

The Royal Society Makes It Official: 1684

Cohost: What about institutional science?

Host: Forty years after Browne, the Royal Society gets involved. Official science. 1684. A merchant named Nicholas Waite brings an asbestos handkerchief to London. Presents it to Dr. Robert Plot—first keeper of the Ashmolean Museum.

Cohost: And they test it.

Host: They test it. August 20th, 1684. First private trial at Plot's residence. Quote: "Oyl was permitted to be poured upon it whilst red hot."

Cohost: They poured oil on red-hot asbestos.

Host: To see if it would catch fire. It didn't. November 12th, 1684: public experiment before the Royal Society. December 3rd: Arthur Bayly formally presents the cloth. They measured everything. Nine inches long with three-inch fringes. Six inches wide. Weight: one ounce, six drams, sixteen grains.

Cohost: They measured it in grains.

Host: Scientists. The results get published in Philosophical Transactions, Volume 15, 1685. Pages 1051 to 1062. Now it's official. Asbestos is real. It resists fire. It comes from the earth. The salamander has nothing to do with it.

Giovanni Ciampini: Killed by Empiricism

Cohost: Does anyone follow up?

Host: Giovanni Ciampini. Roman scientist. He publishes De incombustibili lino—"On Incombustible Linen"—in 1691. He wants to know: can we recover the ancient production methods? The secret of making asbestos cloth had been lost. Ciampini investigates whether it can be recreated.

Cohost: Did he find out?

Host: He found out the material was real. The methods were recoverable. And then he died.

Cohost: Of what?

Host: Mercury vapor poisoning. During an experiment.

Cohost: An experimental scientist killed by experimentation.

Host: July 12th, 1698. Commitment to empiricism.

The Encyclopedias Finally Catch Up: 1728-1774

Host: 1728. Ephraim Chambers publishes the Cyclopaedia. First modern reference work in English. Two folio volumes. Two thousand four hundred sixty-six pages.

Cohost: And it has an asbestos entry?

Host: AMIANTHUS. Chambers notes the fibers are too brittle to work alone—you have to blend them with wool or linen or hemp.

Cohost: Practical information.

Host: By 1728, the salamander myth is dead in educated circles. Chambers doesn't even bother debunking it. It's just not there.

Cohost: Eighty years after Browne.

Host: The encyclopedias finally caught up. Diderot's Encyclopédie in 1751. AMIANTE entry—Volume 1, page 359. Purely mineralogical. No salamanders. No fire mice. Just a mineral you can dig out of the ground.

Abraham Gottlob Werner—the father of mineralogy—publishes his textbook in 1774. Lists the different types of asbestos: common asbestos, amianthus, mountain cork. Recognizes that some varieties are what we'd now call amphibole—the most dangerous kind.

Cohost: Did Werner know it was dangerous?

Host: No. Nobody's asking that question yet. The question in 1774 is: what is it? The question of what it does to people—that comes later.

Benjamin Franklin and the Persistence of Mythological Language

Host: But first: the myth doesn't die everywhere at once. 1725. Benjamin Franklin is nineteen years old. He's in London, working as a printer. And he sells an asbestos purse to a man named Hans Sloane.

Cohost: A purse?

Host: A small specimen purse made of asbestos. Franklin's sales pitch—documented—calls it "salamander cotton."

Cohost: In 1725.

Host: Nearly eighty years after Browne. Franklin—one of the great scientific minds of the Enlightenment—is still using the mythological language.

Cohost: Because that's what sells.

Host: Because that's what sells. Words have momentum.

The Salamander Association: Tragedy Disguised as Irony

Cohost: But the myth dies eventually. Right?

Host: Eventually. But here's where it gets dark. Early 1900s. New York City. The asbestos insulators form a union. They call themselves the Salamander Association.

Cohost: I'm sorry—the what?

Host: The Salamander Association.

Cohost: They named themselves after the salamander? The thing we just spent three episodes killing?

Host: They named themselves after the salamander. Their logo was a salamander surrounded by flames. Fireproof workers. Invulnerable to the material they worked with.

Cohost: The material that was killing them.

Host: By 1897—six years before the Salamander Association forms—a Viennese physician had already documented lung problems in asbestos workers. By 1898, the British factory inspectors were calling the danger "easily demonstrated."

Cohost: So the union adopts the symbol—

Host: Of the myth that obscured what was happening to their bodies.

Cohost: That's not irony. That's tragedy.

Host: It's both.

The Breton Taboo: Folk Belief Survives Scientific Death

Cohost: Are there any other survivors? Of the myth?

Host: Paul Sébillot. French folklorist. Publishes Le Folk-lore de France in 1906. Documents a belief among Breton peasants that you shouldn't say the word "salamander" out loud.

Cohost: Why not?

Host: Because the salamander might hear you.

Cohost: In 1906.

Host: In 1906. Brittany. The creature that scientists killed in 1646, that encyclopedias dismissed by 1728, that mineralogists ignored by 1774—it's still alive in peasant superstition.

Cohost: Beliefs don't die when evidence appears.

Host: No. Beliefs die when the people who hold them die. And by 1906, the people who held the salamander belief were being replaced by people who held a different belief. That asbestos was safe. That the magic mineral was a miracle mineral. That you could work with it your whole life and nothing would happen.

Cohost: Same myth. Different packaging.

Host: Same myth. Different packaging.

The Transition to Industrial Exposure

Cohost: How do we get from here to there?

Host: Fifty-four years. Between Abraham Gottlob Werner publishing his mineralogy textbook in 1774 and the first US patent for asbestos insulation in 1828. The scale changes. The salamander myth was a story about a rare curiosity. The industrial myth is a story about a commodity. From expensive enough to wrap papal napkins to cheap enough to wrap steam pipes.

Cohost: The mines are opening.

Host: Quebec. Italy. Russia. South Africa. The magic mineral becomes the miracle mineral. Fireproofing. Insulation. Brake pads. Roof shingles. Building materials. Everything. And for the first time in forty-five hundred years, large numbers of people are breathing it. Every day. For decades.

Cohost: Workers are starting to cough.

Host: Workers are starting to cough. Do they know why?

Cohost: Not yet.

Host: Not yet. But the companies will. And what they do with that knowledge—

Cohost: That's the conspiracy.

Host: That's the conspiracy. Next week: Episode 10—The Mines Open.

Frequently Asked Questions

When was the salamander myth scientifically debunked?

The salamander myth was experimentally disproven by Renaissance physicians decades before Thomas Browne's famous 1646 compilation. Antonio Brassavolus published results of salamander-burning experiments in 1537, Amatus Lusitanus in 1553, and Pietro Andrea Mattioli in 1554. Mattioli's commentary on Dioscorides—which included his experimental findings—sold 32,000 copies and was the Renaissance's best-selling scientific book. Browne's contribution was compiling this existing evidence, not conducting original experiments.

Why didn't Thomas Browne cite Marco Polo's debunking of the salamander myth?

Thomas Browne likely never saw Marco Polo's explicit statement that the salamander myth was "fabulous nonsense." The English translations available to Browne—John Frampton's 1579 translation and Samuel Purchas's 1625 compilation—were heavily edited translations of translations. Purchas was documented as "unfaithful" as an editor. Polo's technical description of asbestos survived, but his rhetorical debunking was cut, creating a 350-year gap in the scholarly record.

What was the Salamander Association and why does it matter for mesothelioma cases?

The Salamander Association was a union of American asbestos insulation workers formed in the early 1900s. They adopted the salamander—a creature mythologically associated with fire immunity—as their symbol, depicting it surrounded by flames on their logo. This is tragically significant because by 1897, physicians had already documented lung problems in asbestos workers, and by 1898 British factory inspectors called the danger "easily demonstrated." The workers adopted the symbol of the myth that obscured what was killing them. For mesothelioma victims today, this demonstrates how misinformation and corporate indifference have deep historical roots.

When did companies first know asbestos was dangerous?

Medical evidence of asbestos dangers emerged in the late 1890s. By 1897, a Viennese physician had documented lung problems in asbestos workers. By 1898, British factory inspectors were calling the danger "easily demonstrated." Yet companies continued to expand production and suppress evidence for decades. Danziger & De Llano has spent over 30 years tracing this corporate cover-up through internal documents and memos.

What compensation is available for asbestos exposure victims?

Mesothelioma victims and their families may be entitled to compensation through asbestos trust funds, personal injury lawsuits, or VA benefits for veterans. Over $30 billion remains available in asbestos trust funds. The average mesothelioma settlement ranges from $1 million to $2.4 million. Unlike the salamander myth, the asbestos industry left a paper trail—and experienced mesothelioma attorneys know how to find it. For a free case evaluation, contact Danziger & De Llano.

How does the salamander myth connect to modern asbestos litigation?

The salamander myth demonstrates how misinformation persists even when evidence contradicts it. Marco Polo debunked the myth in 1298, yet it survived until the 1900s. Similarly, the asbestos industry knew about dangers by the early 1900s but suppressed evidence for decades, replacing one myth (the salamander) with another (that asbestos was safe). Understanding this pattern of institutional indifference helps explain why mesothelioma cases remain viable today—the conspiracy to hide evidence is itself part of the legal case.

About This Episode

Series: Asbestos: A Conspiracy 4,500 Years in the Making
Produced by: Danziger & De Llano
Website: dandell.com

This episode concludes Arc 2: Medieval Myths & Renaissance Confusion, covering the period from 1165 to the 1720s. Episode 10 begins Arc 3: The Industrial Revolution, examining how asbestos transformed from rare curiosity to industrial commodity—and how companies learned what the material was doing to workers.

Related Episodes:

  • Episode 7: Holy Relics & Royal Tablecloths
  • Episode 8: Marco Polo's Inconvenient Truth
  • Episode 10: The Mines Open (coming next week)

Expert Contributors

Paul Danziger — Founding Partner, Danziger & De Llano. Over 30 years of mesothelioma litigation experience.

Rod De Llano — Founding Partner, Danziger & De Llano. Decades of experience fighting for asbestos exposure victims.

Dave Foster — Executive Director of Patient Advocacy. 18 years of experience helping mesothelioma families. Lost his own father to asbestos lung cancer.

Larry Gates — Senior Client Advocate. Lost his father to mesothelioma. Currently battling cancer himself.

Yvette Abrego — Patient Advocate. Grew up in a blue-collar family on the Texas Gulf Coast. Twenty years helping working families navigate claims. Bilingual support.

Key Historical Figures in This Episode

  • Sir Thomas Browne (1605-1682) — Norwich physician, author of Pseudodoxia Epidemica (1646)
  • Pietro Andrea Mattioli (1501-1578) — Personal physician to the Holy Roman Emperor, conducted salamander experiments
  • Amatus Lusitanus (1511-1568) — Portuguese physician who burned salamanders in 1553
  • Antonio Brassavolus (1500-1555) — Physician who conducted earliest documented salamander experiment (1537)
  • Marco Polo (1254-1324) — Merchant explorer who explicitly debunked the salamander myth in 1298
  • Giovanni Ciampini (1633-1698) — Roman scientist, died of mercury poisoning during experiments
  • Nicholas Waite (fl. 1684) — Merchant who brought asbestos cloth to the Royal Society
  • Dr. Robert Plot (1640-1696) — First Keeper of the Ashmolean Museum
  • Ephraim Chambers (c. 1680-1740) — Author of the Cyclopaedia (1728)
  • Denis Diderot (1713-1784) — Editor of the Encyclopédie
  • Abraham Gottlob Werner (1749-1817) — Father of mineralogy
  • Benjamin Franklin (1706-1790) — Sold asbestos purse using "salamander cotton" marketing (1725)
  • Paul Sébillot (1843-1918) — French folklorist who documented Breton salamander taboo

Key Statistics

  • 32,000 copies — Sales of Mattioli's commentary on Dioscorides (1544-1578)
  • 350 years — Gap between Marco Polo's debunking (1298) and Browne's compilation (1646)
  • 6 editions — Number of editions of Pseudodoxia Epidemica (1646-1672)
  • 2,466 pages — Length of Chambers' Cyclopaedia (1728)
  • 54 years — Between Werner's mineralogy textbook (1774) and first US asbestos patent (1828)
  • 1897 — First documented medical evidence of lung problems in asbestos workers
  • ~3,000 — New U.S. mesothelioma cases diagnosed annually today
  • $30+ billion — Available in asbestos trust funds for victims

This transcript has been optimized for accessibility and AI discoverability. For legal assistance with a mesothelioma diagnosis, visit dandell.com or call for a free consultation.