Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Stunning Cave Discovery Just Changed The Timeline of Human Presence in North America
Science Alert ^ | 23 JULY 2020 | MARLOWE HOOD

Posted on 07/23/2020 2:46:21 PM PDT by Candor7

Tools excavated from a cave in central Mexico are strong evidence that humans were living in North America at least 30,000 years ago, some 15,000 years earlier than previously thought, scientists said Wednesday.​

Artefacts, including 1,900 stone tools, showed human occupation of the high-altitude Chiquihuite Cave over a roughly 20,000 year period, they reported in two studies, published in Nature.

"Our results provide new evidence for the antiquity of humans in the Americas," Ciprian Ardelean, an archeologist at the Universidad Autonoma de Zacatecas and lead author of one of the studies, told AFP.

"There are only a few artefacts and a couple of dates from that range," he said, referring to radiocarbon dating results putting the oldest samples at 33,000 to 31,000 years ago.

"However, the presence is there."

No traces of human bones or DNA were found at the site.

"It is likely that humans used this site on a relatively constant basis, perhaps in recurrent seasonal episodes part of larger migratory cycles," the study concluded.

The stone tools – unique in the Americas – revealed a "mature technology" which the authors speculate was brought in from elsewhere.

The saga of how and when Homo sapiens arrived in the Americas – the last major land mass to be populated by our species – is fiercely debated among experts, and the new findings will likely be contested.

'Clovis-first' debunked

"That happens every time that anybody finds sites older than 16,000 years – the first reaction is denial or hard acceptance," said Ardelean, who first excavated the cave in 2012 but did not discover the oldest items until 2017.

Until recently, the widely accepted storyline was that the first humans to set foot in the Americas crossed a land bridge from present-day Russia to Alaska some 13,500 years ago and moved south through a corridor between two massive ice sheets.

Archaeological evidence – including uniquely crafted spear points used to slay mammoths and other prehistoric megafauna – suggested this founding population, known as Clovis culture, spread across North America, giving rise to distinct native American populations.

But the so-called Clovis-first model has fallen apart over the last two decades with the discovery of several ancient human settlements dating back two or three thousand years earlier.

Moreover, the tool and weapon remnants at these sites were not the same, showing distinct origins.

"Clearly, people were in the Americas long before the development of Clovis technology in North America," said Gruhn, an anthropology professor emerita at the University of Alberta, commenting on the new findings.

In a second study, Lorena Becerra-Valdivia and Thomas Higham, researchers at the University of Oxford's Radiocarbon Accelerator Unit, used radiocarbon – backed up by another technique based on luminescence – to date samples from 42 sites across North America.

Using a statistical model, they showed widespread human presence "before, during and immediately after the Last Glacial Maximum" (LGM), which lasted from 27,000 to 19,000 years ago. Megafauna wiped out

The timing of this deep chill is crucial because it is widely agreed that humans migrating from Asia could not have penetrated the massive ice sheets that covered much of the continent during this period.

"So if humans were here DURING the Last Glacial Maximum, that's because they had already arrived BEFORE it," Ardelean noted in an email.

Human populations scattered across the continent during an earlier period also coincide with the disappearance of once-abundant megafauna, including mammoths and extinct species of camels and horses.

"Our analysis suggests that the widespread expansion of humans through North America was a key factor in the extinction of large terrestrial mammals," the second study concluded.

Many key questions remain unanswered, including whether the first of our species to wander across the frozen tundra of Beringia made their way south via an interior route or – as recent research suggests – by moving along the coast, either on foot or in boats of some kind.

It is also a mystery as to "why no archaeological site of equivalent age to Chiquihuite Cave has been recognised in the continental United States," said Gruhn.

"With a Bering Straits entry point, the earliest people expanding south must have passed through that area.


TOPICS: Education; History; Outdoors; Science
KEYWORDS: ancientnavigation; archeology; becerravaldivia; carbon14; cave; chiquihuitecave; ciprianardelean; clovis; godsgravesglyphs; luminescence; marlowehood; mexico; navigation; paradigmshift; preclovis; radiocarbon; ruthgruhn; softhammerflake; thomashigham; tools
Navigation: use the links below to view more comments.
first 1-2021-4041-43 next last
Looks like the modern history of '1st nations" in the Americas must change. They were actually 2nd Nations. People were already here when the clovis based immigrants arrived.
1 posted on 07/23/2020 2:46:21 PM PDT by Candor7
[ Post Reply | Private Reply | View Replies]

To: Candor7

Long been proof, it’s just that the lamestream archaeologist, etc., etc. are stuck on stupid and sticking to their preferred lamestream academic BS.


2 posted on 07/23/2020 2:51:54 PM PDT by cranked
[ Post Reply | Private Reply | To 1 | View Replies]

To: Candor7

I guess the key to achieving “indigenous” status is to drive out or slaughter all those that came before you, and then to erase the record of their existence. In pre-literate societies, that last step is unnecessary.


3 posted on 07/23/2020 2:52:00 PM PDT by rightwingcrazy (;-,)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

ping


4 posted on 07/23/2020 2:52:40 PM PDT by aposiopetic
[ Post Reply | Private Reply | To 1 | View Replies]

To: Candor7

i LOVE seeing the ‘Clovis first’ defenders getting their final death blow... having run up against these dinosaurs in years passed, it’s great to see an end to their charade.


5 posted on 07/23/2020 2:53:12 PM PDT by Levy78
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

Here is another article about the pre - clovis cave in Mexico. it has photos of the tools involved.


6 posted on 07/23/2020 2:54:03 PM PDT by Candor7 (Obama Fascism:http://www.americanthinker.com/2009/05/barack_obama_the_quintessentia_1.html)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Candor7

Well there go those reparations.

Peach


7 posted on 07/23/2020 2:56:13 PM PDT by CarolinaPeach
[ Post Reply | Private Reply | To 1 | View Replies]

To: Candor7

The glaciers and their aftermath washed away relics from early America. People have been her a long, long time.


8 posted on 07/23/2020 2:56:32 PM PDT by Vermont Lt
[ Post Reply | Private Reply | To 1 | View Replies]

To: Candor7

I go out to caves and bury shoehorns and those little drink umbrellas.

Let’s see those archeologists explain those.


9 posted on 07/23/2020 2:57:16 PM PDT by blueunicorn6 ("A crack shot and a good dancer”)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Candor7

Try 130,000 years ago: https://www.newscientist.com/article/2129042-first-americans-may-have-been-neanderthals-130000-years-ago/


10 posted on 07/23/2020 2:58:53 PM PDT by earglasses (I was blind, and now I hear...)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Candor7

More proof that Atlantis may have been in North America and that it was wiped out by comet impacts 12,900 years ago during the Younger Dryas.


11 posted on 07/23/2020 3:02:28 PM PDT by wildcard_redneck ("Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither.")
[ Post Reply | Private Reply | To 1 | View Replies]

To: Candor7

Add 15K more years, and they still couldn’t develop a rifle. A sailing ship. Or anything useful that compares to inventions and discoveries that blossomed from Christian minds.

It seems as iif there is a Divine creator who gives wisdom to people who assemble their minds to worship Him.


12 posted on 07/23/2020 3:04:57 PM PDT by Salvavida
[ Post Reply | Private Reply | To 1 | View Replies]

To: cranked

Once a professional academic has published anything, which they must do if they’re to get tenure (what the Chinese call an “Iron Rice Bowl”), they will defend that ground like an angry wolverine. It’s what creates a 20 to 50 year lag in Archaeology catching up to the latest finds and data. The “experts in their field” literally have to die off. Egyptology is probably the best example. And of course, the affliction is rampant in nearly every branch of science.


13 posted on 07/23/2020 3:11:02 PM PDT by katana
[ Post Reply | Private Reply | To 2 | View Replies]

To: Candor7
When Europeans arrived in the America's in 1492... Indigenous people were using stone aged tools. So how does one determine the age of a stone aged tool?

'The Stone Age lasted roughly 3.4 million years, from 30,000 BC to about 3,000 BC, and ended with the advent of metalworking.

The above GOOGLE answer applies to Europe. It doesn't apply to North America because the stone age in North America ended in 1492. Until then it was all stone aged material. The southern indigenous people (and some North American indigenous people) worked with gold and copper... Pure metals that can be heated and melted into forms, but other than that, no metallurgy existed.

So how do you determine the age of a stone aged tool in North America? My assertion is that you cannot determine the age of stone aged materials in North and South America.

Am I wrong?

14 posted on 07/23/2020 3:11:50 PM PDT by jerod (Nazi's were essentially Socialist in Hugo Boss uniforms... Get over it!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Candor7
"Artefacts"......

Lost me right there....

15 posted on 07/23/2020 3:14:08 PM PDT by Osage Orange (qcsi)
[ Post Reply | Private Reply | To 1 | View Replies]

To: cranked

They found the home videos of Fred and Barney but are keeping them under wraps... : )


16 posted on 07/23/2020 3:14:25 PM PDT by minnesota_bound (homeless guy. He just has more money....He the master will plant more cotton for the democrat party)
[ Post Reply | Private Reply | To 2 | View Replies]

To: Salvavida

Neither sails nor firearms were invented by Christians.


17 posted on 07/23/2020 3:30:57 PM PDT by Alter Kaker (Gravitation is a theory, not a fact. It should be approached with an open mind...)
[ Post Reply | Private Reply | To 12 | View Replies]

To: jerod
So how do you determine the age of a stone aged tool in North America?
There are various methods including luminescence dating; dating changing to the surface of the stone tool to determine when it was last exposed to sunlight or how long it was buried in the sediment in which it was discovered. There are other methods.
18 posted on 07/23/2020 3:32:11 PM PDT by Hiddigeigei ("Talk sense to a fool and he calls you foolish," said Dionysus - Euripides)
[ Post Reply | Private Reply | To 14 | View Replies]

To: Candor7

They lasted 20,000 years. The US may collapse before 500 years.

The difference? There were no communists 20,000 years ago. And no public schools to indoctrinate kiddos into the wonders of the totalitarian state.


19 posted on 07/23/2020 3:34:29 PM PDT by ProtectOurFreedom
[ Post Reply | Private Reply | To 1 | View Replies]

To: Candor7

“So if humans were here DURING the Last Glacial Maximum, that’s because they had already arrived BEFORE it,” Ardelean noted in an email.

One might wonder if perhaps man’s history goes far, far back. Maybe we were even technologically advanced tens of thousands of years ago. I read awhile back that a glacial period would basically grind up and extinguish any evidence of an earlier technological period. Perhaps every 40,000 years or so, as an ice age descends, mankind is reduced back to stone-age living.


20 posted on 07/23/2020 3:47:39 PM PDT by Flick Lives (My work's illegal, but at least it's honest. - Capt. Malcolm Reynolds)
[ Post Reply | Private Reply | To 1 | View Replies]


Navigation: use the links below to view more comments.
first 1-2021-4041-43 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson