Graham Hancock

guest·61 claims·8 episodes·updated Jul 20, 2026

61 fact-checked claims across 8 episodes on the Joe Rogan Experience. Each is a receipt: the exact quote, its timestamp, what published evidence says, and who benefits.

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Logged claims

  1. JRE #189722:08

    2007, out comes this hypothesis with mainstream backing by mainstream scientists saying that it looks like there was a series, not just one impact, but multipl…

    Hancock claims the Younger Dryas Impact Hypothesis (multiple comet fragments striking Earth ~12,800 years ago) has mainstream scientific backing.

  2. JRE #189724:51

    decades, that civilization began about 6,000 years ago. And before that, there was no such thing as civilization. And they say that the first big megalithic st…

    Hancock claims mainstream archaeology held civilization began only ~6,000 years ago until Gobekli Tepe (dated ~11,600 years old) upended that view, implying a suppressed older civilization.

  3. JRE #87252:34

    It's the single largest block of stone ever cut and quarried in the ancient world.

    The guest claims a 1,460-ton block discovered at Baalbek in 2014 is the single largest block of stone ever cut and quarried in the ancient world.

  4. JRE #87242:19

    Just a year ago, at the bottom of the Sicily Channel, at a depth of more than 120 feet,

    The guest describes a purportedly megalithic man-made structure discovered underwater in the Sicily Channel, submerged for roughly 9,000 years.

  5. JRE #87250:23

    What caused it was exposure to a very long period of heavy, heavy, heavy rainfall.

    The guest claims the Great Sphinx's erosion was caused by prolonged heavy rainfall during the Younger Dryas period roughly 12,000 years ago, implying the Sphinx is far older than the accepted ~2500 BC date.

  6. JRE #21362:58:00

    So the Younger Dryas impact hypothesis since 2007, it's been a compelling and thoroughly documented case. It's been put together by more than 60 eminent scient…

    Hancock claims the Younger Dryas impact hypothesis, dating a comet-fragment impact to 12,800 years ago, has been assembled since 2007 by more than 60 eminent scientists.

  7. JRE #21362:56:18

    Exactly the same thing that happened over Tunguska in Siberia on the 30th of June 1908. That was an object that fell out of the sky, almost certainly out of th…

    Hancock states the Tunguska event of 30 June 1908 was an airburst that flattened 2,000 square miles of Siberian forest and came from the Taurid meteor stream.

  8. JRE #213628:33

    this is Jacques Cinq-Mars, who investigated bluefish caves in the Yukon and found evidence of human beings there more than 20,000 years ago. Now if that eviden…

    Hancock claims Bluefish Caves in the Yukon yielded evidence of humans more than 20,000 years ago, over 7,000 years before Clovis.

  9. JRE #22152:23:45

    result of heavy rainfall, exposure to heavy rainfall for thousands of years. And you have to go back to the Younger Dryas to get that kind of heavy rainfall in…

    Geologist Robert Schoch attributed the weathering of the Sphinx to thousands of years of heavy rainfall, implying it is more than 12,000 years old.

  10. JRE #128443:06

    At a place called Jaco Sa in the Amazon, you can find a square perfectly enclosing a circle. Now, that is an exercise called squaring the circle that our acade…

    Hancock claims an Amazonian earthwork site demonstrates the geometric 'squaring the circle' concept predating the Greeks, who are credited by academics as first performing it.

  11. JRE #12842:08:52

    There's a comet up there called Comet Encke, which is part of the Taurid meteor stream. It's a large fragment of the original giant comet. Comet Encke has a di…

    Hancock claims there is a comet named 'Comet Enki,' 5-6 kilometers in diameter, that is a surviving fragment of the original giant comet behind the Taurid meteor stream.

  12. JRE #96158:46

    What Schock is saying is that the Sphinx and the trench out of which the Sphinx is cut bears the unmistakable evidence of precipitation-induced weathering, wea…

    Hancock claims geologist Robert Schoch's water-erosion analysis shows the Sphinx enclosure was carved by millennia of heavy rainfall, implying the Sphinx is far older than the mainstream ~2500 BC date.

  13. JRE #15431:54:31

    the last time you have that heavy rainfall in Egypt is the period that geologists call the Younger Dryas, roughly between 12,800 and 11,600 years ago. So the b…

    Hancock asserts that erosion patterns on the Sphinx enclosure prove the monument dates to the Younger Dryas period roughly 12,000 years ago.

  14. JRE #15431:50:36

    The notion that the Great Sphinx is 12,500 years old, which is a notion based on the erosion patterns on the body of the Sphinx, is utterly unacceptable to Egy…

    Hancock claims the Great Sphinx's erosion patterns show it is 12,500 years old, a date rejected by mainstream Egyptology.

  15. JRE #205117:40

    The king lists from ancient Egypt go back 30 plus thousand years.

    Hancock claims ancient Egyptian king lists document a lineage of rulers extending back more than 30,000 years.

  16. JRE #20511:03:25

    the Sphinx 12,500 years ago was gazing at dawn on the spring equinox at the constellation of Leo. In other words, this lion monument on the ground was looking …

    Hancock claims astronomical alignment (the Sphinx facing the constellation Leo at dawn on the spring equinox roughly 12,500 years ago) supports his view, along with water-erosion evidence, that the Great Sphinx is far older than its conventional dating of about 4,500 years.

  17. JRE #20512:39

    The Indus Valley civilization today in Pakistan wasn't known about until the 1920s. It was found by accident.

    Hancock cites the 1920s discovery of the Indus Valley civilization as precedent for a currently-unknown lost advanced civilization existing undiscovered today.

  18. JRE #20511:25:27

    60 major scientists published in all the big mainstream journals proposing that the Earth went through an absolutely catastrophic episode between 12,800 and 11…

    Hancock claims 60 mainstream scientists have published papers confirming a catastrophic Earth event 12,800-11,600 years ago that vindicates his lost-civilization theory.

  19. JRE #205116:57

    27 million square kilometers of the best real estate on earth that were above water during the Ice Age are underwater now. Yes, there's been some marine archae…

    Hancock claims 27 million square kilometers of formerly-exposed continental shelf are now underwater and largely unexamined by archaeology, leaving open the possibility of a lost advanced civilization there.

  20. JRE #18971:06:40

    The geology speaks to the original Sphinx being more than 12,000 years old.

    Hancock claims geological water-erosion evidence shows the Great Sphinx of Giza is over 12,000 years old, far older than the accepted ~4,500-year Old Kingdom date.

  21. JRE #189728:33

    And they said, oh, 9,000 years ago. Well, do the math. That's in 600 BC. That's 9,000 years before 600 BC. We call that 9,600 BC. That's 11,600 years ago. That…

    Hancock claims Plato's date for the destruction of Atlantis (as told to Solon by Egyptian priests) exactly matches the scientifically-dated end of the Younger Dryas period.

  22. JRE #22151:21:23

    and that led archaeologists to dive in on him And there was a ganging up of archaeologists and complaints were made to the Peer-reviewed journal that published…

    The peer-reviewed journal retracted Natawidjaja's Gunung Padang paper without good reasons after archaeologists complained.

  23. JRE #22151:57:50

    There was a point where Easter Island's population was reduced to just 11 people, and it was reduced to 11 people by Peruvian slave raids. They came and slaved…

    Easter Island's population was reduced to just 11 people as a result of Peruvian slave raids.

  24. JRE #22151:20:33

    Dani Hilman Natu Wajaja, who is the geologist who brought to the world's attention the mystery of Gunung Padang in Indonesia, which appeared in the first episo…

    Geologist Danny Hilman Natawidjaja published a peer-reviewed paper claiming Gunung Padang in Indonesia is a pyramidal structure more than 27,000 years old with earliest phases in the last ice age.

  25. JRE #22151:06:55

    It's reckoned that there were a million mound sites in North America, if you go back to 1500. There's about 100,000 left, which is a lot actually. But most of …

    There were about a million mound sites in North America around 1500, with roughly 100,000 surviving today and 900,000 destroyed.

  26. JRE #221511:00

    in San Diego. I went to see, the exhibits are in the San Diego Natural History Museum and I talked with the expert there, Dr. Tom Demere. And they are convince…

    The Cerutti Mastodon site in San Diego shows evidence of human butchering of a mastodon dated to 130,000 years ago, according to Dr. Tom Demere.

  27. JRE #22152:12

    level, lowest sea level during the Ice Age. Cyprus was always an island. And yet, there's evidence now that it was settled 14,000 years ago, certainly 14,000 t…

    Cyprus, always an island even at lowest Ice Age sea level, was settled 14,000 to 12,500 years ago by large planned migrations of populations of roughly a thousand people crossing the Mediterranean.

  28. JRE #22158:25

    And there, yes, they found human footprints dated back more than 23,000 years.

    Human footprints found at White Sands, New Mexico have been dated to more than 23,000 years ago.

  29. JRE #221556:10

    anatomically modern humans, we think that they first appeared about 300,000 years ago. Jebel Irhoud in Morocco, 310,000 years ago. Now, I can remember a time n…

    Anatomically modern humans first appeared about 300,000 years ago, with the Jebel Irhoud fossils in Morocco dated to 310,000 years.

  30. JRE #221513:38

    Tom Dillehay who found Monte Verde, who excavated Monte Verde in South America, and realized that it was plus 14,000 years old, and therefore a lot older than …

    Tom Dillehay excavated Monte Verde in South America and determined it was more than 14,000 years old, older than the then-accepted model for the first peoples of North America.

  31. JRE #22152:22:04

    The Sphinx aligned with, it was looking at the rising sun and behind it the constellation of Leo 12,500 years ago.

    The Sphinx faced the rising sun with the constellation Leo behind it 12,500 years ago.

  32. JRE #22152:12

    Same with Australia. 50,000 years ago human beings got there and even at the lowest sea level

    Humans reached Australia 50,000 years ago, crossing open water even at the lowest sea level.

  33. JRE #221524:01

    Terra Prata is still being made, but most of it is very old. And the oldest that they found so far is about 8,000 years old.

    The oldest terra preta (Amazonian dark earth) found so far is about 8,000 years old.

  34. JRE #22151:49:55

    It kills 50,000 Philistines in the city of Ashdod when they briefly capture it from the Israelites and make the mistake of treating it like a tourist object an…

    The Old Testament describes the Ark of the Covenant killing 50,000 Philistines in Ashdod with cancerous tumors after they captured and opened it.

  35. JRE #22152:09:08

    now it's Polaris because the extended north pole of the Earth is spiraling in the heavens and it's pointing at different bits of space over a roughly 26,000 ye…

    The precession of the equinoxes completes a cycle of about 25,920 years, with one degree taking 72 years.

  36. JRE #22151:54:12

    the date that she's found 3,000 year old banana phytoliths in Easter Island blows out of the water the notion that Easter Island was only settled a thousand ye…

    Banana phytoliths excavated from a crater on Easter Island have been dated to 3,000 years old, implying much earlier settlement than the conventional date.

  37. JRE #221535:10

    Because if it's the tomb of Khufu then it had to be built in 23 years because that was his Reign uh he would start in theory building it at the beginning of hi…

    The Great Pyramid, if the tomb of Khufu, would have had to be built within his roughly 23-year reign.

  38. JRE #22152:21:28

    when we work precession into the equation, we find that they're not laid out in the pattern of Orion's belt as it looked in 2500 BC when the pyramids are suppo…

    The three Giza pyramids are laid out matching the pattern of Orion's belt as it appeared in 10,500 BC, not 2500 BC when they were supposedly built.

  39. JRE #213631:46

    Tom Dillehay discovered the site of, excavated the site of Monteverde in Chile, and he found evidence that human beings had been there 14,000, maybe as much as…

    Hancock states Tom Dillehay excavated Monte Verde in Chile and found evidence of human presence 14,000 to as much as 18,000 years ago.

  40. JRE #213625:46

    So archaeologists named this culture the Clovis culture after that. And it was for a long while thought to be the first culture, the first human presence in th…

    Hancock states the Clovis culture, long held to be the first human presence in the Americas, was dated to around 13,400 years ago and crossed the Bering land bridge.

  41. JRE #21363:57:41

    and that time is around 12,600 years ago. It's not a single moment, it's an epoch of several hundred years. But the constellation of Leo, it was the age of Leo…

    Hancock claims the constellation Leo housed the rising sun at the spring equinox around 12,600 years ago, aligning with the lion-shaped Sphinx.

  42. JRE #21363:55:16

    And this monument is aligned to within three sixtieths of a single degree of true north. Why do I pick three sixtieths? Because degrees are divided into 60 min…

    Hancock claims the Great Pyramid is aligned to true north within three arc minutes (three sixtieths of a degree).

  43. JRE #21362:55:25

    Between 12,900 and 12,800 years ago, a very dramatic climate episode occurred and that's called the Younger Dryas. The world had been gradually warming up befo…

    Hancock states the Younger Dryas began 12,900 to 12,800 years ago with abrupt cooling and evidence of a six-meter sea level rise at that time.

  44. JRE #213638:38

    But the fact of the matter is, round about 1% of the Sahara has been excavated and 99% hasn't. So to say that there's no possibility of any traces of a lost ci…

    Hancock asserts about 1 percent of the Sahara has been excavated and that during African Humid periods the Sahara was green and fertile.

  45. JRE #21363:54:39

    Now I give you some statistics. It's 481.39 feet high originally. It's a bit lower today. It lost some 30 feet from its top in an earthquake. Footprint of the …

    Hancock gives statistics for the Great Pyramid: originally 481.39 feet tall, base footprint 13.1 acres, weight 6 million tons.

  46. JRE #21362:55:25

    The evidence for the Younger Dryas impact is found in what are called impact proxies and that's iridium, nanodiamonds, platinum, melt glass like trinitite, fou…

    Hancock claims Younger Dryas impact proxies such as iridium, nanodiamonds, platinum and melt glass are found across more than 50 million square kilometers of the Earth's surface.

  47. JRE #12841:12:47

    above the king's Chamber in the Great Pyramid are five further chambers. And these chambers are roofed and floored with granite beams that weigh about 70 tons …

    Hancock claims the Great Pyramid's relieving chambers above the King's Chamber contain hundreds of 70-ton granite beams.

  48. JRE #12842:34:22

    there have been arguments that there is a group of archaeologists who would like it to be just 1,000 years old, and they attribute it to a culture called the F…

    Hancock claims there is live archaeological disagreement over Serpent Mound's age, with one camp dating it to only 1,000 years old (Fort Ancient culture) versus his preferred, older Adena-culture attribution.

  49. JRE #12842:11:27

    the comet shoemaker shoemaker levy 9 which hit jupiter in 1994 had a total calculated explosive power of 300 gigatons if you took the entire nuclear arsenal of…

    Hancock claims Comet Shoemaker-Levy 9's 1994 impact with Jupiter released 300 gigatons of energy, roughly 47 times the explosive yield of the world's entire nuclear arsenal (stated as 6.4 gigatons).

  50. JRE #12841:22:39

    clearly identifiable pattern of DNA, which is only found in one other place in the world, and that is in Australasia, in Papua New Guinea, and amongst Australi…

    Hancock claims a distinctive Australasian DNA signal found in Amazonian tribes and in ~11,000-year-old Amazon skeletal remains is found nowhere else in the world except Australasia.

  51. JRE #12841:35:13

    Antarctica appears repeatedly on these much older maps and it appears in the right place and a bit bigger than it is today but very much as it looked during th…

    Hancock claims old maps repeatedly and accurately depict Antarctica in its correct location and roughly as it appeared, ice-free, during the last Ice Age, before its official 1819 discovery.

  52. JRE #128437:41

    you can take a handful of 8,000-year-old terra preta, and you can add it to barren soil, and that soil will instantly become fertile

    Hancock claims that adding a handful of 8,000-year-old Amazonian terra preta soil to barren soil will instantly make that soil fertile.

  53. JRE #12849:54

    there's already evidence of comet impact in Greenland, which goes back to papers published in the Proceedings of the National Academy of Sciences in 2013, that…

    Hancock claims a newly discovered 18-mile-wide crater under Greenland's ice is linked to 2013 PNAS papers reporting comet-impact proxies (nanodiamonds, carbon spherules, platinum) dated to 12,800 years ago.

  54. JRE #128419:24

    The site he excavated in the Yukon was re-excavated in 2017 and every single thing he said was correct even though they had just sneered at him

    Hancock claims a 2017 re-excavation of Jacques Cinq-Mars's Yukon site (Bluefish Caves) confirmed that every claim Cinq-Mars made was correct, fully vindicating him after he was mocked by mainstream archaeology.

  55. JRE #128412:33

    So they found evidence of the impacts as far south as Antarctica now. Previously, they were focused very much on North America. Now, as far south as Antarctica…

    Hancock claims physical evidence of the Younger Dryas comet impact has been found as far away as Antarctica and Syria, proving it was a truly global event.

  56. JRE #12841:31:43

    It's the notion of a global navigating culture in the Ice Age that archaeologists can't swallow. It's a subject that I've kept on coming up against over a numb…

    Hancock claims there was a global seafaring civilization mapping the world during the last Ice Age, evidenced by old portolan maps like the Piri Reis map.

  57. JRE #12841:23:15

    the most parsimonious explanation is that a group of people during the Ice Age crossed the Pacific Ocean and ended up in South America and settled in the Amazo…

    Hancock claims geneticist Eske Willerslev told him the most parsimonious explanation for Australasian DNA in the Amazon is that people crossed the Pacific Ocean directly during the Ice Age and settled there.

  58. JRE #12846:15

    Gobekli Tepe is discovered. It dates to 11,600 years ago. It's more than 5,000 years older than the supposedly oldest megalithic architecture in the world. And…

    Hancock claims Gobekli Tepe's site had no prior evidence of agriculture and that agriculture appeared simultaneously with the site's construction, implying the monument predates and causes farming.

  59. JRE #12848:11

    we get a group of more than 60 major scientists who are seriously proposing that the Earth was hit by multiple fragments of a giant comet 12,800 years ago, and…

    Hancock claims over 60 scientists have proposed the Younger Dryas impact hypothesis, that a comet impact 12,800 years ago caused sea level rise and megafauna extinction.

  60. JRE #128421:17

    San Diego Natural History Museum, and a bunch of other very high-level paleontologists, published in Nature magazine evidence for human presence in North Ameri…

    Hancock claims a 2017 Nature paper on the Cerutti Mastodon site presents accepted evidence of human presence in North America 130,000 years ago.

  61. JRE #128436:43

    we can say that a city like London, which had a population of roughly 50,000 in the 16th century, there were cities of that size all over the Amazon, huge numb…

    Hancock claims pre-Columbian Amazon cities rivaled 16th-century London in size and the Amazon's total population exceeded 20 million people.