On 16 October 1869, on William C. “Stub” Newell’s farm at Cardiff, in the Onondaga Valley of central New York, two hired men digging a well struck a vast stone figure that looked like a petrified human ten feet tall. Word spread within hours, and a tent went up over the pit. It was a fraud from the first stroke. The figure was a block of gypsum, quarried in Iowa and carved in Chicago at the direction of George Hull, a Binghamton tobacconist and avowed skeptic, who had buried it on his cousin Newell’s land roughly eleven months earlier and waited for it to be “found.”
The deception barely outlived its own celebrity. Within weeks geologists pronounced the object impossible, and on 10 December 1869 — under two months after the discovery — Hull confessed the whole scheme to the press, having already pocketed the money. Yale’s pioneering paleontologist Othniel Charles Marsh examined the giant and dismissed it as “of very recent origin, and a most decided humbug,” noting fresh tool marks and a polished surface that water-soluble gypsum could never have kept underground. The courts followed: in February 1870 the giant and a copied rival were both declared fakes.
Hull’s motive was not, at first, money. By his own account he conceived the hoax after a theological argument with a revivalist preacher who insisted, citing Genesis 6:4 — “there were giants in the earth in those days” — that scripture was literally true. Hull set out to manufacture exactly the relic such literalism predicted, then watch the credulous pay to believe it. He spent a reported 2,600 dollars building the giant and recouped a fortune; a syndicate led by the Syracuse banker David Hannum bought a three-quarter interest for a sum reported around 30,000 dollars, and the showman P.T. Barnum, refused the original, simply commissioned a plaster copy and exhibited it as the genuine article.
The Cardiff Giant endures less as a mystery than as a parable. It fooled no expert who was allowed to test it, yet it drew enormous crowds because it confirmed what many wished to be true and arrived wrapped in the authority of the soil. The phrase “there’s a sucker born every minute,” long misattributed to Barnum, is most plausibly traced to Hannum, exasperated that the public was paying to see Barnum’s fake of Hull’s fake. Today the original rests at the Farmers’ Museum in Cooperstown, New York.
In October 1999, at a press conference in Washington and in the November issue of National Geographic, the magazine unveiled a small feathered fossil from Liaoning Province, China, hailed as a transitional creature linking ground-running dinosaurs to birds. It was informally christened Archaeoraptor liaoningensis. The fossil was not a single animal at all. It was a chimera — a composite assembled, largely with glue, from pieces of at least two different species and several specimens, joined on a slab to look like one body. Within months it stood exposed as one of the most embarrassing fakes in modern paleontology.
The exposure was swift and came from inside the science. The Chinese paleontologist Xu Xing, a co-describer of the specimen, grew suspicious and on 20 December 1999 emailed his collaborators that the fossil was a forgery; in early 2000 he located in a Chinese institution the counterslab of the tail, proving it belonged to a separate animal. CT scans by Timothy Rowe at the University of Texas had already shown the slab to be made of mismatched parts. The tail was eventually identified as that of the dromaeosaur later named Microraptor; the front half was a primitive bird subsequently named Yanornis. The “link” was an accident of adhesive.
The deeper failure was editorial, not geological. The manuscript describing the fossil had been rejected by both Nature and Science, the discipline’s leading journals, yet National Geographic — a popular magazine, not a peer-reviewed one — published the find anyway, written up by its own art editor, Christopher Sloan. The specimen had been smuggled out of China in violation of that country’s antiquities law, sold at the Tucson gem show in February 1999 for a reported 80,000 dollars to Stephen Czerkas of a private dinosaur museum in Utah, and rushed to print on a wave of excitement about the genuine, and genuinely revolutionary, feathered dinosaurs then emerging from Liaoning.
That last point is the irony the case is remembered for. The dinosaur–bird link Archaeoraptor was meant to dramatize is real; Liaoning’s authentic fossils have since confirmed it overwhelmingly. The forgery did not invent a false idea so much as fabricate a counterfeit of a true one, and in doing so it handed critics of the science a propaganda gift. National Geographic commissioned an outside investigation and published a candid post-mortem, “Archaeoraptor Fossil Trail,” by the journalist Lewis M. Simons, in October 2000.
On 31 March 1848, in a small rented farmhouse in Hydesville, New York, two sisters — eleven-year-old Kate Fox and her fourteen-year-old sister Margaret, called Maggie — began producing mysterious raps that seemed to answer questions, claiming an unseen presence was knocking back. There was no presence. Forty years later, on 21 October 1888, before a paying audience of some two thousand at the New York Academy of Music, Margaret Fox stood up and confessed: the raps had always been a trick, made by snapping the joints of her toes and ankles, a habit the girls had begun as a prank on their mother and never stopped. She demonstrated the sound on stage, her bare foot on a small wooden stool, while doctors on the platform confirmed the noise came from her toes.
Between those two dates the Fox sisters had founded modern Spiritualism, one of the largest religious movements of the nineteenth century. What began as two children fooling a credulous adult grew, under the management of their much older sister Leah, into a national sensation: public demonstrations, paid séances, and a doctrine that the living could converse with the dead through rapping mediums. The movement spread through the United States and Europe and, by the 1880s, was credited by its own adherents with millions of believers, swelled enormously by the grief of the American Civil War, which left countless families desperate to reach the sons they had lost.
The confession was as public as the hoax had been, and it was bought. The New York World reportedly paid Margaret around 1,500 dollars for the exclusive, and she denounced Spiritualism from the stage as a fraud she had helped create. Yet the recantation did not stick. Within roughly a year, impoverished and pressured, Margaret took her confession back, and many Spiritualists simply refused to believe she had ever told the truth. Both sisters died soon after in poverty and ill health — Kate in 1892, Margaret in 1893 — and the movement they had launched carried on without them.
The Fox case is a defining specimen hoax not because the trick was clever but because it was so trivial and yet scaled so far. Two girls cracking their toes produced a phenomenon that drew in judges, editors, scientists, and a future Sherlock Holmes author, and that hardened into a faith resilient enough to survive its own founder’s confession. The mechanism of the deception was a parlour prank; the mechanism of the credulity was grief, showmanship, and the human refusal to let the dead stay silent.
At Bell Labs in Murray Hill, New Jersey, between roughly 1998 and 2001, the young German physicist Jan Hendrik Schön published a torrent of results that appeared to remake condensed-matter physics. He reported transistors built from single organic molecules, superconductivity in organic crystals, and a string of other firsts, at a tempo that astonished his field — in 2001 he was an author on a newly published paper, on average, roughly every eight days, in the most selective journals in science. Almost none of it was true. In 2002 an investigation concluded that Schön had fabricated or falsified data across at least sixteen separate cases, and his cascade of breakthroughs collapsed into one of the largest fraud episodes in the history of physics.
The exposure turned on the data themselves rather than on any failed replication. In the spring of 2002, physicists outside Bell Labs — among them Lydia Sohn, then at Princeton, and Paul McEuen at Cornell — noticed that graphs in different Schön papers, supposedly describing different experiments at different temperatures and in different materials, contained identical traces of random electronic noise, down to the same minute, irreproducible wiggles. Real measurements do not share their noise; the curves had been copied. Once the duplications were flagged, Bell Labs’ parent company, Lucent Technologies, convened an external committee chaired by the Stanford physicist Malcolm Beasley.
The Beasley committee reported on 25 September 2002. Examining 24 allegations across 25 papers, it found compelling evidence that Schön had committed scientific misconduct in at least 16 of them, while explicitly clearing his co-authors of misconduct. Schön had, in numerous cases, been unable to produce raw data, primary samples, or laboratory notebooks; the committee found his explanations unconvincing and the pattern of manipulation unmistakable. Bell Labs dismissed him immediately. In the months that followed, the journals unwound the record: Science retracted eight papers and later two more, Nature retracted seven, and Physical Review and Applied Physics Letters retracted others.
The reckoning extended to his credentials. In 2004 the University of Konstanz revoked the doctorate it had awarded him, citing dishonorable conduct, and Germany’s research funding agency barred him from its grants and committees. Schön contested the revocation through years of German litigation; the courts ultimately upheld it, with the Federal Administrative Court sustaining the decision in 2013. What remained, once the fabricated papers were withdrawn, was close to nothing: a celebrated body of work that had reported phenomena no one — including Schön — could reproduce.
In the summer of 1842, in New York City, the showman P.T. Barnum exhibited what he advertised as a preserved mermaid taken from the waters near the Feejee (Fiji) Islands. It was no such thing. The object was a manufactured specimen — the desiccated head and torso of a monkey stitched to the dried tail of a fish — most likely made by craftsmen in the East Indies and acquired decades earlier by a Western sailor. Barnum knew it was false; before he displayed it he had consulted a naturalist who told him plainly that it was a fabrication. He exhibited it anyway, having engineered the public into demanding to see it.
What makes the Feejee Mermaid a landmark is not the crude object but the campaign Barnum built around it. He had leased the curiosity from the Boston showman Moses Kimball, and rather than simply put it on display, he constructed a fictional authority to vouch for it. An associate, Levi Lyman, was installed in a New York hotel as “Dr. J. Griffin,” a supposed naturalist of the (entirely invented) “British Lyceum of Natural History,” carrying the mermaid as a scientific prize. Barnum then planted letters in New York newspapers, ostensibly mailed from Alabama and South Carolina, mentioning the eminent Dr. Griffin and his specimen, and distributed woodcuts of beautiful, bare-breasted mermaids — images that bore no resemblance to the shriveled object itself.
The illusion was deliberately self-debunking only in retrospect; at the time it worked. Griffin “lectured” on natural history, the press relayed the controversy, and crowds poured into the exhibition — first at a Broadway concert hall, then at Barnum’s American Museum, where receipts reportedly tripled. The specimen, when finally seen, was a small, blackened, agonized-looking thing that Barnum himself described as ugly; the gap between the advertised maiden and the actual relic was part of the entertainment. Naturalists and a skeptical southern press denounced it as a fraud within the year, and the mermaid’s authenticity collapsed even as Barnum’s fame grew.
The Feejee Mermaid became the template for Barnum’s career: not the sale of a believable object, but the orchestration of curiosity through a fake expert, manufactured news, and seductive imagery, with the public half-aware it might be humbugged and paying to find out. The original specimen’s fate is uncertain; it is generally believed to have been destroyed in one of the fires that consumed Barnum’s and Kimball’s collections in the nineteenth century, with a related specimen later associated with Harvard’s Peabody Museum.
In the spring of 1996 the New York University physicist Alan Sokal published a deliberately meaningless article in Social Text, a respected journal of cultural studies, and then immediately announced that it was a hoax. The paper, “Transgressing the Boundaries: Towards a Transformative Hermeneutics of Quantum Gravity,” argued — in dense, fashionable prose studded with real citations to leading theorists — that physical reality is a social and linguistic construct and that quantum gravity confirms postmodern epistemology. It was nonsense by design. Sokal, a working physicist, had written something he knew to be false and incoherent to test whether a journal would print it so long as it sounded impressive and flattered the editors’ assumptions.
It would. “Transgressing the Boundaries” appeared in Social Text‘s Spring/Summer 1996 “Science Wars” issue, an issue assembled partly to rebut critics of postmodern science studies. On the same day, in the May 1996 issue of the magazine Lingua Franca, Sokal published “A Physicist Experiments with Cultural Studies,” revealing that the article was a parody and quoting his own absurdities back at the field. The journal had not sent the piece to any physicist, and at the time Social Text did not practise formal peer review. The deception was not subtle and was never meant to last; the point was made the moment both pieces were in print.
The case is a hoax of a particular kind. Sokal forged no object and stole no money; what he counterfeited was scholarly authority itself, demonstrating that a credentialed-sounding argument could pass without anyone competent checking whether its physics meant anything. He stated his aim plainly: to see whether a leading journal would “publish an article liberally salted with nonsense if (a) it sounded good and (b) it flattered the editors’ ideological preconceptions.” The answer, in this instance, was yes.
The affair detonated into one of the defining intellectual controversies of the 1990s “science wars.” Social Text‘s editors, including Bruce Robbins and Andrew Ross, protested that they had been deceived in bad faith and that they had read the piece charitably as an earnest scientist’s reach toward their field. Sokal’s defenders countered that the very willingness to publish work they had not understood, in a field that claimed authority over science, was exactly the problem. He expanded the argument in a 1997 book with the physicist Jean Bricmont, published as Impostures intellectuelles and in English as Fashionable Nonsense, and returned to it in 2008 in Beyond the Hoax.