What Was Buried in Oregon May Change Everything We Know About Early Humans

[00:00:00]Well, artifacts recovered from a cave in Central Oregon were determined to possibly be the oldest known sewn material in the world. The collection is comprised of 55 artifacts including two pieces of animal hide [music] stitched together.

[00:00:17]>> In a dry cave in Southern Oregon, a University of Oregon team reaches into the dirt and pulls out something that should not exist. The date comes back so wrong, they assume the machine failed, so they run it again, different sample, different equipment, then a third time.

[00:00:32]Every result points to the same impossible answer, that whoever left this behind was standing on American soil thousands of [music] years before history says a single human had arrived.

[00:00:43]>> That orange agate tool was discovered in 2012. It was preserved under a layer of volcanic ash from Mount St. Helens eruption over 15,000 years ago.

[00:00:53]>> And what that cave floor gives up next does not just move the date, it quietly dismantles the whole story of who got here first.

[00:01:02]The Oregon cave.

[00:01:04]It is called the Paisley Caves, a row of dry rock shelters in South Central Oregon. And here is the part nobody likes to admit. Researchers had known about the place for decades. They just never dug deep enough. Everyone assumed the question of the first Americans was settled, printed, framed, hanging on a wall. So, why bother going down another layer in a dusty cave in the middle of nowhere? Then a University of Oregon team dug down through the layers of the cave floor.

[00:01:32]>> A team of archaeologists at the University of Oregon have found one of North America's oldest human occupied sites in Southern Oregon.

[00:01:41]>> And what they pulled out was not a spear point, not a tool. It was preserved human waste, dried and hardened, sitting exactly where a person left it thousands of years ago. I know how that sounds. A find that humble does not make the evening news. But the dry desert air of the high Oregon plateau did something no lab on Earth can do. It kept that fragile organic thing intact, century after century, while everything else in that cave rotted to nothing. And locked inside it was something a stone tool can never give you. Not a shape, not a guess. Human DNA.

[00:02:17]They sequenced it, and the result left no wiggle room. It matched the Native American founding lineages. The direct genetic ancestors of indigenous people alive in America right now. Not a failed migration that wandered in and died out.

[00:02:31]A bloodline running straight back into the dirt of a cave most of the world has never heard of. Then they dated it using a method that measures the age of the organic material itself, not the dirt around it. That matters. The usual objection to an impossibly old find is that the object slid down from a younger layer, or the sample got contaminated.

[00:02:52]This cuts past all of it. Calibrated, the result came back at more than 14,000 years before the Clovis people were supposed to have arrived at all.

[00:03:03]That single date breaks something enormous. For most of the 20th century, every textbook taught the same tidy story. The first Americans were the Clovis people, named for the fluted spear points found in New Mexico. They walked over a frozen land bridge from Asia around 13,000 years ago and spread across an empty continent.

[00:03:23]First to arrive, nothing before them.

[00:03:26]Careers were built on it. Museum halls were arranged around it. Oregon just put 1,000 years between Clovis and the truth. And Oregon was not done. One date from one cave is the kind of thing the old guard waves away as a fluke. But, 70 miles away, a second Oregon site was about to take that date and drag it down into something far older and far harder to explain. If your picture of the first Americans is already cracking, tap subscribe right now. Because what a University of Oregon archaeologist pulled out of the ground 70 miles away is worse.

[00:04:02]Rimrock Draw.

[00:04:04]70 miles from the Paisley Caves, outside the town of Riley, sits Rimrock Draw rock shelter. Dr. Patrick O'Grady, a University of Oregon archaeologist, has been digging there since 2011. For years, the site gave up almost nothing.

[00:04:20]A few obsidian flakes and slow knees in the dirt work that never makes a documentary. Rimrock Draw did not hand over DNA. It handed over a clock. Buried in the soil was a layer of white ash from an eruption of Mount St. Helens more than 15,000 years ago. Anything below that ash is older than the eruption, and ash is not a sample you can argue with. It sealed a lid over time itself, and beneath that lid, the team pulled out things that were not supposed to be there. Fragments of tooth enamel sifted from the soil one by one.

[00:04:52]One belonged to a camel, an ice age species long extinct in North America.

[00:04:57]Another to an ancient bison, a heavier ancestor of the modern buffalo.

[00:05:01]Creatures from a vanished world in the same ground a human tool would soon turn up in. Then came the tool. Orange chalcedony worked into a single implement with a cutting edge, a scraping edge, and a saw-toothed edge worn smooth. O'Grady called it an early Swiss Army knife, and the telling detail is the wear. The teeth along that serrated edge were polished, and that kind of polish does not happen in a week. It takes a lifetime. Somebody carried this for years, set it down in that shelter, and never came back for it. The tool sat below the animal teeth.

[00:05:36]Deeper means older.

[00:05:38]And when the lab tested the enamel, the dates came back thousands of years before Clovis, placing people in that shelter around 18,000 years ago, among the oldest evidence of humans anywhere in North America.

[00:05:50]>> And in 2012, we found this tooth enamel with this stone tool underneath it. And so, um this is the one that tested positive for bison blood, but it was actually found buried underneath camel tooth enamel.

[00:06:06]>> O'Grady did not trust it at first. He ran it again.

[00:06:10]The window held. He has been open about how unnerving it is to hold material that old. And that knife was not Clovis.

[00:06:17]It belongs to the Western Stem Tradition, a style that looks nothing like a Clovis point >> [music] >> and predates it by thousands of years.

[00:06:24]That is the quiet bombshell. For decades, the assumption was that every ancient tool in the Americas descended from Clovis, because Clovis was the source. But a tradition older than Clovis cannot have come from Clovis.

[00:06:38]It means a separate people with their own techniques were already here.

[00:06:43]And if they were standing in Oregon this early, the real question becomes how they got here. And how far back it goes.

[00:06:51]The first crack.

[00:06:53]The first crack had appeared decades earlier on the other side of the country, in a Pennsylvania rock shelter called Meadowcroft. In 1955, a local historian named Albert Miller reached into a groundhog hole and pulled out artifacts that had no business being there. In 1973, an archaeologist named James Adovasio began excavating the floor one layer at a time, and the deeper he went, the older it got. When the dates came back, humans had been at Meadowcroft as early as 16,000 years ago, thousands of years before Clovis.

[00:07:27]In 1980, Adovasio published it and said the quiet part out loud. The Clovis First model was wrong, and his colleagues came for him. Some accused him of contaminated samples. Others simply pretended the paper did not exist, which in science is its own kind of insult. The resistance was so stubborn, it earned a name. And here is the uncomfortable part. It worked.

[00:07:50]Decades later, many archaeologists still would not accept his dates. Not because the evidence was weak, but because admitting it meant rewriting careers.

[00:07:58]So, when Oregon's caves and ash layer landed, the field was already cracked down the middle. Out of Valsequillo had taken the hits alone. Oregon made it impossible to keep looking away. And the moment you accept the timeline is broken, a worse question opens. Because 700 miles south, in a white desert nobody had bothered to map, there were footprints. And the people who left them were not supposed to exist.

[00:08:23]Ghost tracks in the white sands.

[00:08:26]White Sands National Park is a field of pale gypsum dunes in southern New Mexico. Crossing the dried bed of an ancient lake, researchers noticed shapes pressed into the ground. Footprints.

[00:08:38]>> [music] >> Human footprints. 61 of them.

[00:08:42]They were brutally clear. The toes, [music] the curve of the arch. Some are tiny, the size of a child's foot. Others belong to adults almost [music] running.

[00:08:52]This is not a stone or a bone. This is a moment. A group of people, children included, walking along the edge of an ice age lake on an ordinary day.

[00:09:01]>> We can definitively say that human beings were present here at White Sands during the last glacial maximum, and that is far older than they have been confirmed anywhere else in North or South America.

[00:09:14]>> At a moment the textbook insists no human had set foot on this continent at all. The first dates from seeds in the same layers came back at 21 to 23,000 years old. Skeptics raised a fair objection. The seeds [music] could have absorbed old carbon from ground water and looked falsely ancient. So, the team tested again with pollen that does not soak up that carbon. Same answer. Then a later study used organic material from ancient wetland mud. Three independent sources all landing in the same window, the height of the last ice age, exactly when the textbook swears North America was empty.

[00:09:50]>> [music] >> Oregon had pushed the first Americans past 14,000 years. White Sands shoves them past 20. And those people were not alone. [music] Their prints run alongside the tracks of mammoths and giant ground sloths, pressed into the same mud at the same moment. But White Sands [music] tops out around 23,000 years. There is a site in Southern California that makes it look recent, and nobody was even looking for it.

[00:10:17]The freeway dig.

[00:10:19]A road crew in Southern California was cutting through soil when the blade hit bone. No archaeologists, no research grant, just a road that needed building.

[00:10:29]Paleontologists were called in, and what they lifted out were the partial remains of a mastodon, an elephant-like animal that went extinct at the end of the ice age. But these bones had not fossilized in peace. They showed spiral fractures, the kind of break that only happens to fresh bone. Old fossilized bone is dry and brittle, and it shatters. Fresh bone twists and spirals as it breaks.

[00:10:51]Something cracked these open while they were still fresh, and scattered among them were heavy stones water could not have carried there. Hammer stones and anvils brought in, used, and left behind. Then came the number that stops you cold. The bone dated to around 130,000 years old.

[00:11:11]>> It's been 13,600 years since these bones have seen the light of day. Researchers at the University of Iowa have just uncovered the skull and several bones of a mastodon.

[00:11:23]>> That is older than our own species is widely thought to have spread out of Africa. Now, this is where I have to be straight with you. That claim was published in a major journal, and it is one of the most disputed findings in all of archaeology. Most researchers do not accept it. They argue the fractures could have come from construction equipment or natural pressure, not human hands. The team stands by their work, and nobody has settled it either way. I am not telling you it is true. I am telling you it exists, and no one has made it go away.

[00:11:54]Which drags us back to the question Oregon could not answer alone. If people were here this early, how did any of them get here?

[00:12:02]A different door.

[00:12:05]For a century, the answer was one word, Beringia.

[00:12:09]The land bridge from Siberia exposed when the world's water was locked up in ice. But, Oregon's Western Stem tools look nothing like what walked out of that corridor. If the oldest toolmakers here were not carrying the Clovis kit that came through that door, maybe they did not come through that door at all.

[00:12:26]Consider Crete.

[00:12:27]The island has been cut off from the mainland for millions of years. Anyone who reached [music] it had to cross open sea in a real boat, and researchers have found stone tools there that may be well over 100,000 years old, made by human ancestors from long before modern humans existed. If those dates hold, the assumption that early people could not handle open water falls apart. And that assumption was load-bearing. The whole reason everyone insisted the first Americans had to walk was the belief that boats came late, which reopens every migration map ever drawn. A growing body of evidence now points to a coastal route. Small groups moving along the shoreline by boat, camp by camp, never out of sight of land. No single heroic voyage, just the sea and time and a coastline that kept going. The Clovis hunters at the front of every museum diorama were not the pioneers. They arrived late to a continent people had already crossed. And all of it, the footprints in New Mexico, the cracked open bones in California, the boats implied across the Pacific keep circling back to a dark cave floor in South Central Oregon >> [music] >> and to whatever is still sitting in the layers no one has dug through yet. So, here is the one I cannot answer >> [music] >> and I want yours.

[00:13:44]If someone really did crack open those mastodon bones in California over a hundred thousand years ago, who were they? Drop your theory in the comments below because the honest answer right now is that nobody knows. If this hit you the way it hit us, tap subscribe and I hit the like button. The next site is already coming out of the ground older than Oregon and we will be the first to walk you through what they found.