Championing New Views of the First Americans

Pedra Niede portrait

In 1963, when Niede Guidon was a young archaeologist working at the Museu Palista in Sao Paulo, Brazil, a friend showed her some photographs of ancient paintings on rock walls.  Something about those photos made a profound impression on her.  The site was called Pedra Furada, Pierced Rock, after a famous rock formation with a hole in it.

Pedra Furada pierced rock

The remote area of northeastern Brazil where the photos were taken, stripped of its forests in colonial times, had suffered terrible erosion, silting of rivers, and subsequent desertification by the time Guidon visited in 1973.  But its isolation had helped to preserve the paintings.  As soon as she began studying the area, she realized it was something extraordinary.

Pedra rock art Wikipedia, by Diego Rego Monteiro

Where most rock art sites in Europe are a single cave or a series of caves in a single mountain, Pedra Furada is a collection of over 900 sites with over 1150 images painted on the walls and ceilings, mostly with red ochre or other clays, and some burned bone charcoal.  The oldest images date from 12,000 years old, the newest about 5,000 years old, showing a change in style over time from fingerwork to paintings created with cactus spines and brushes made of fibers or fur.  They show people hunting with atlatls (dart throwers), dancing, mating, giving birth, and fighting.  Many animal are represented, including caimans, llamas, pumas, deer, capybaras, turtles, fish, and iguanas.

Pedra painting with red deer and humans

Often the red deer are large, surrounded by small images of people, as in the panel shown. Other sections feature rows of marks and unidentified figures, and what seem to be narrative sequences.

Pedra patterned body

 

 

 

Some large rectangular humanoid figures with patterned bodies are surrounded by smaller human forms with raised arms.

 

The treasure underfoot

What lay deep in the ground near the painted walls was even more surprising than the paintings.  Guidon and her team spent years carefully excavating the areas, finding evidence of hearth fires and stone tools in layers ranging from 5,000 years old to 32,000 years old, with lower levels dating to 48,000 years old.  Repeated analysis by independent labs, mostly in France, supported those dates.  Guidon herself, never one to shy away from an argument, maintained in a 1985 article in Nature that the site showed clear evidence of human occupation 60,000 years ago!

Clovis First”

Her findings enraged American archaeologists because they challenged the common belief that people arrived in the Americas by walking across the land bridge from Asia, called Beringia, to Alaska during the Ice Age, about 13,000 years ago.  From there, they supposedly dispersed all through the Americas.

Clovis points

This theory began in the 1930’s with the discovery of a finely-made spear point lodged in a mastodon bone near Clovis, New Mexico.  When other points/arrowheads with this same design were found in neighboring states, and then across the country, archaeologists decided that these points were made by East Asian big game hunters who followed their prey across Beringia and down an ice-free corridor between glaciers into what is now the western United States.  The presence of the Clovis points became the basis for a belief in a Clovis people and a Clovis culture that was so effective it spread from north to south throughout the Americas. The Clovis First theory was repeated endlessly in school textbooks throughout the 20th century.  (The Clovis point in the photo shows the characteristic fine work on both sides (bi-face).

clovis_continent_647kb

There were a few glitches in the theory, but they were largely ignored.  For instance, the greatest concentration of Clovis-style points has been found in the southeastern US, not in Alaska or northern Canada, so we can assume they moved from the east to the west, not the other way around.  (See diagram of Clovis point distribution)

Plus, there was never any proof that the Clovis-style points indicated either a people or a culture.  Today, iPhones are found all over the world, but they represent neither a people nor a culture.  They’re simply a very useful bit of technology.  Probably Clovis points were too.  A valuable trade item, endlessly copied – spreading across the continent.

But all of these problems with “Clovis First” were dismissed by the established powerhouses in American archaeology, especially at Harvard and Yale.

Dennis Stanford, now with the Smithsonian Museum of History, admitted that when he was excavating a site in Florida and came across signs of human habitation far older than Clovis dates, he told his team to fill the pit back in and tell no one about it since their findings would never be accepted.

Who’s she?  

Then along came this brash Brazilian woman with her French education and her crazy theories about early man in Brazil.  The US archaeological community tore her findings apart, claiming the tools were made by monkeys, or they were “geofacts,” natural objects altered by weather or falling to the ground.  In a heated response to a question about them from a reporter from The Guardian,  Guidon said, “US archaeologists believe that the artifacts are geofacts created naturally because the North Americans CANNOT BELIEVE they do not have the oldest site!”  When critics said the carbon hearth samples were the result of natural fires, she pointed out the sites lay well inside caves or rock overhangs, inside circles of stones.  No carbon was found in sample pits dug outside the shelters. “The carbon is not from a natural fire.  It is only found inside the sites.  You don’t get natural fires inside the shelters,” she retorted.  “Americans criticize WITHOUT KNOWING.  The problem is not mine!  The problem is theirs!  Americans should excavate more and write less!”

Guidon challenged American archaeologists to come to the site, draw their own samples, and do their own tests.  They refused.

When they couldn’t make her back down, US archeologists discredited, belittled, then ignored Guidon, her research, and her site. It simply never appeared in surveys of ancient settlements in the Americas.  “Everybody has pretty much deep-sixed Guidon,” one noted American archaeologist commented.

But time, it seems, is on her side.

 

New finds in Chile and South Carolina

Tom Dillehay, an American archaeologist working at sites in southern and central Chile, found extensive evidence of human habitation there 18,000 years ago, 5,000 years before the supposed appearance of the “Clovis people.”  Settlers on the Chilean coast built lodges, ate a variety of seafood, and used different kinds of seaweed for medicines.  Presence of quartz and tar from other areas indicated either a trade network or a wide area of exploration. Even though Dillehay had painstakingly recorded every discovery and each step of the dating process, and used independent labs for verification, the established archaeological community initially refused to consider his conclusions.  He had to spend ten years defending his findings, but thanks to his persistence, there’s now at least a bit of doubt concerning Clovis First.

Albert Goodyear, who has been working at the Topper Hill chert mine site in South Carolina since the 1980’s, ran into similar problems when he found a rich deposit of Clovis style points and then, much farther down, ran into a completely different set of hearths and tools.  The deepest layers dated to 50,000 years old.  Again, the archaeological community raged against the findings, making life so miserable for Goodyear that he considered leaving the field completely.

For scholars with a vested interest in preserving Clovis First, it simply wasn’t possible that there were settlements before Clovis.  If so, all their work would be meaningless.

Fig 7

Santa Elina rock shelter and more

Then more news came from Brazil, including discoveries at Santa Elina rock shelter in central Brazil, where pierced bone ornaments made from giant sloths (photo) were dated over 23,000 years old.  Like Pedra Furada, it too had rock art and evidence of occasional, seasonal use over thousands of years.  A site in Uruguay yielded evidence of humans hunting giant sloths 32,000 years ago.  Now, these finds are being lumped together with Guidon’s research, indicating a record of human habitation in the area at least 30,000 years old.  Some suggest over 50,000 years old.

Other revelations have followed.  But the most dramatic challenge has come from Steven and Kathleen Holen, who have long held the belief that people were in the Americas before 40,000 years ago.  In a paper in Nature, they argue that break marks on 130,000 year old mastodon bones found in Southern California suggest hominins (ancestors of modern humans) did the butchering using stone tools, perhaps to get at the marrow or use the bones for tools.  To illustrate their point, the Holens used rocks they found at the site to break open elephant bones.

The dust still hasn’t settled from the fracas over their claims.

Even more radical theories

As Niede Guidon said years ago, “I think it’s wrong that everyone came running across Bering chasing mammoths – that’s infantile.  I think they also came along the seas.”  Now in her 80’s and mostly retired, she hasn’t softened her tone at all.  She currently maintains that people first arrived in South America from West Africa, perhaps as far back as 100,000 years ago.

kayaker1-300

She says they could have floated or paddled across the sea with the current and the wind in their favor.  Both journeys have been replicated in modern times.  (The diagram at the left shows the route a 70-year-old Polish kayaker took in his solo journey across the Atlantic in 2017.)  If you look at the globe, an African origin certainly makes more sense for settlements in northeastern Brazil than having people go through Alaska, down the coast of North America and Central America, then across the Andes and the Amazon Basin to get to Pedra Furada.Pedra map

But Guidon isn’t stopping there.  She suggests that the group from Africa may have merged with groups from the South Pacific that came by sea, settled on the Pacific coast and later crossed lower South America.

Evidence for the South Pacific theory    Botocudo man, South American natives of eastern Brazil, historical portrait, 1875

Several native populations in South America were completely eradicated by the Spanish and Portuguese conquerors.  One group, the Botocudo, were murdered by the Portuguese because they wouldn’t submit to enslavement.  Oddly, the Portuguese kept several of the skulls, which later wound up in a museum.  When modern scientists drilled into the teeth and tested the DNA, they found markers typical of Polynesians and Australians. (Drawings of a Botocudo man, above).  See earlier post on “Chickens, Sweet Potatoes, and Polynesians in Brazil.”

The Long Chronology

Increasingly, it looks as if there is no one simple answer to the origin or timeline of the peopling of the Americas.  A new theory, called the Long Chronology, posits multiple waves of immigrants from different places arriving over a long period of time, probably with only a few successful, surviving settlements.  This pattern seems more promising than Clovis First – and certainly more defensible given new discoveries.  This does not rule out migration from Siberia or along the west coast of North America.  It simply takes away its claim of exclusivity.

Serra da Capivara

Pedra Serra da Capivara entrance

Meanwhile, Niede Guidon is busy trying to get funding to keep the 320,000 acre national park she fought for, now called Serra da Capivara, open. (Entrance shown in photo.)  Her research helped establish it as a UNESCO World Heritage Site in 1991, but government support is undependable.  Few American archaeologists have ever visited.  Only the hardiest tourists make the trip.  But Guidon’s work is finally getting some attention from the press and the academic world.  Robson Bonnichsen, from the University of Maine’s Center for the Study of the First Americans, feels her work needs more attention.  “We’re trying to get some eminent American scholars down there to study the methods and results,” he said.  He plans to lead the first American excavation team there.

This should be interesting to watch.  Perhaps if an American man gets the same results, the data will get more respect.  If so, Guidon will probably wonder what took the rest of the world so long to catch up with her.

 

Sources and interesting reading:

Bellos, Alex, “Archaeologists feud over oldest Americans, The Guardian, 10 February 2000, https://www.theguardian.com/science/2000/feb/11/archaeology.internationalnews

Bower, Bruce, “People may have lived in razil more than 20,000 years ago,” Science News, 5 September 2017, https://www.sciencenews.org/blog/science-ticker/stone-age-people-brazil-20000-years-ago

Bower, Bruce, “Texas toolmakers add to the debate over who the first Americans were,” Science News, 11 July 2018, https://www.sciencenews.org/article/texas-toolmakers-add-debate-over-who-first-americans-were

Brooke, James, “Ancient Find, But How Ancient?” 17 April 1990, The New York Times, https://www.nytimes.com/1990/04/17/science/ancient-find-but-how-ancient.html

Fenton, Bruce, “Brazilian rock shelter proves inhabited Americas 23,000 years ago” The Vintage News, 29 January 2018, https://www.thevintagenews.com/2018/01/29/brazilian-rock-shelter/

Guidon, Niede, “Nature and the age of the depostis in Pedra Furada, Brazil: Reply to Meltzer, Adovasio and others, Antiquity, vol.68, 1994. https://www.researchgate.net/publication/285362399_Nature-and-age_of_the_depostis_in_Pedra_Furada_Brazil…

“Interview with Niede Guidon,” Crosscultural Maria-Brazil, http://www.maria-brazil.org/niede-guidon.htm

Jansen, Roberta, “The archaeologist who fights to preserve the vestiges of the first men of the Americas,” BBC News, 12 March 2016, https://www.bbc.com/portuguese/noticias/2016/03/160312_perfil_niede_guidon_rj_ab

“Niede Guidon,” Wikipedia, https://en.eikipedia.org/wiki/NI%C3%A8de_Guidon

“Niede Guidon,” WikiVividly, https://wikivividly.com/wiki/Niede_guidon

“Pedra Furada,” Britannica Online Encyclopedia, https://www.britannica.com/place/Pedra-Furada

“Pedra Furada,” Wikipedia, https://en.wikipedia.org/wiki/Pedra_Furada

“Pedra Furada, Brazil: Paleoindians, Paintings, and Paradoxes, an interview with Niede Guidon and others, Athena Review, vol. 3, no.2: Peopling of the Americas,

Peron, Roberto, “Pedra Furada the Pierce Rock Site,” Peron Rants (blog) 28 April 2017, https://rperon1017blog.wordpress.com/2017/04/28/pedra-furada/

Powledge, Tabitha, “News about ancient humanity: Humans in California 130,000 years ago?” PLOS Blogs, 5 May 2017, http://blogs.plos.org/onscience blogs/2017/05/05/news-about-ancient-humanity-humans-in-California-130000-years ago…

“The Rock Art of Pedra Furada,” The Bradshaw Foundation, http://www.bradshawfoundation.com/south_america/serra_da_capivara/pedra_furada/index.php

Rock Art panel, photo by Diego Rego Monteiro – Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=43861884

Romero, Simon, “Discoveries Challenge Beliefs on Humans’ Arrival in the Americas,” The New York Times, 27 March 2015, https://www.nytimes.com/2014/03/28/world/americas/discoveries-challenge-beliefs-on-humans-arrival-in-the-americas.html

“Serra da Capivara National Park,” Wikipedia, https://en.wikipedia.org/wiki/Serra_da_Capivara_National_Park

Wade, Lizzie, “Traces of some of South America’s earliest people found under ancient dirt pyramid,” Science, 24 May 2017, http://www.sciencemag.org/news/2017/05/traces-some-south-america-s-earliest-people-found-under-ancient-dirt-pyramid

Wilford, John Noble, “Doubts Cast on Report of Earliest Americans,” The New York Times, 14 February 1995, https://www.nytimes.com/1995/02/14/science/doubts-cast-on-report-of-earliest-americans.html

 

 

 

Another book, Another controversy

MV migration_map

 

The Misfits and Heroes novels were born out of my belief that humans arrived in the Americas by many different routes at different times.  That went against the theory widely taught in school: that the first humans to reach the Americas walked across the land bridge from Russia to Alaska about 13,000 years ago. They followed big game and wandered down an ice-free corridor between mile-high ice sheets.  Eventually they populated all of the Americas.

I never doubted that some people arrived that way, but not many.  The land simply couldn’t support many.

Then I read about other finds – in Chile, Mexico, Brazil, Texas, South Carolina, Delaware, Florida.  They all seemed to predate that ice-free corridor in Alaska and the Yukon.  Further, some prominent geologists and paleo-anthropologists claimed the ice-free corridor, if it ever existed, wasn’t passable until 10-12,000 years ago, long after the first settlements in North America.  Consider Topper Hill, South Carolina (50,000 years old), Pedra Furada, Brazil (32,000 – 48,000 years old), Monte Verde II, Chile (at least 18,500 years old), Meadowcroft Rock Shelter, Pennsylvania (17,000 years old), and Huaca Prieta, Peru (15,000 years old).  Given the antiquity and sophistication of these sites, it seems absurd to hold onto the theory that development and culture moved solely from the north to the south, beginning 13,000 years ago.

But the belief persisted, mainly because it’d been repeated so many times people assumed it had been proven beyond any doubt.  At one point, I questioned the whole concept of the “Clovis People” and “Clovis Culture,” since Clovis points were a lithic style, a technological improvement that spread from the southeastern US across North America and down to Venezuela.  My argument was that iPhones have spread across the globe, but their presence does not indicate either a “people” or a “culture.”  It’s simply a very useful bit of technology.  However, my opinion struck a nerve among archaeologists, some of whom claimed they had a bookshelf full of volumes explaining the Clovis people and their culture.  So I let it go.  But in my heart, I think the Clovis points were a valuable trade item that was held in such high esteem it was included in grave goods.  (I’m not sure there’s an equivalent today since technology changes so rapidly. When I started working, really rich people had huge speakers for their component sound system.  Today, a system the size of a shoe-box delivers far better sound.)

Olmec head unearthed

When I visited the Olmec site at La Venta (at least 3500 years old), near Villahermosa, Mexico, I was struck by the amazing sculptures there.  Later, in an attempt to drum up interest in my new Latin American Literature class, I took pictures from La Venta into my composition classes at Mott College in Flint, Michigan.  Without telling the students anything more than dimensions, materials, and probable age of the pieces, I asked what they thought of them. Olmec mask 4

Every group had the same responses: “They’re African” or “They’re Asian.”  It was so consistent, it made me wonder.  What if African explorers came across the Atlantic to the Americas?  What if Asian explorers came across the Pacific?  What if they met somewhere – perhaps in the narrow Isthmus of Tehuantepec in southern Mexico, and the fusion of cultures created the fire that forged a brand new civilization?

Those questions (and one more) became the basis of the Misfits and Heroes novels.

West Africa

 

Misfits and Heroes: West from Africa

The first book in the series, Misfits and Heroes: West from Africa, tells a tale of people forced to learn quickly when their boat is swept out into the open sea.  They end up heroes not because they were born with special powers but because they rose to the challenge and made a new life in a new world.

The journey itself has been repeated many times.  Katie Spotz rowed a bow across the Atlantic – solo.  Axel Busch sailed across the Atlantic – solo – in 21 days.  You can watch his video on YouTube https://www.youtube.com/watch?v=VPL35Ul0Ses  In 1970, Thor Heyerdahl took Ra II, a reed boat modeled after Egyptian sailing vessels, from Morocco to Barbados, in the Caribbean.

In 2006, English adventurer Anthony Smith put an ad in The Daily Telegraph, reading “Fancy rafting cross the Atlantic?  Famous traveler requires three crew Must be OAP (Old Age Pensioners).  Serious adventurers only.”  Smith, with a bit of whimsy and a nod to Heyerdahl, named his raft the An-tiki.  In 2011, the group floated 2,763 miles across the Atlantic, surviving storms and a lost rudder, and ending up on St. Martin, in the Caribbean.  Smith did exactly what he wanted to do – replicate the journey of two British seamen who survived drifting for 70 days in a lifeboat after their ship was sunk by a German warship in 1940.

Clearly, all these people were able to cross the Atlantic from West Africa because the current and winds were in their favor. Why then wouldn’t it be possible for ancient people to make the same journey, carried by the same currents?  Long-standing prejudice held that ancient people couldn’t take boats across open water, but new evidence shows that our cousins, the Neanderthals, did exactly that, crossing the Mediterranean Sea as early as 175,000 years ago.

Misfits and Heroes: West from Africa – Click on the picture for the Amazon link.

 

The South Pacific

The second book in the series, Past the Last Island, takes an even bigger leap: it says that the great navigators of the South Pacific found their way across the Pacific Ocean to the Americas in ancient times – not by going all the way north and following the coast down North America, but by traversing open water.  The boat in the illustration is Polynesian.

map Polynesian boat

 

Clearly their ancestors learned to use boats early on.  Homo Floresiensis, or The Hobbit People as they’re known because of their short stature, occupied an island on the far eastern edge of what is now Indonesia between 50,000 and 190,000 years ago.  Getting there required crossing deep ocean water.

For island people, water was the road, the connection, the wide world.  They had to learn how to use it.

Polynesian star compass

The area encompassing Southeast Asia, Indonesia, Australia, New Guinea, Melanesia, and Polynesia would have been a melting pot of peoples and cultures, in which sea prowess would have played an important role in identifying leaders.  The person who could use the wind and waves to travel was admirable.  The voyager who could find a way back, even at night, was probably worth elevating to the status of leader.  Knowledge was power.  A Polynesian star compass is pictured.

Even after Europeans colonized the South Pacific islands and forced people to stay put, native knowledge of the winds, stars, and currents was passed on, sometimes in secret.  When a famous European sailor agreed to sail hundred of miles with native Polynesian navigators, the European was so worried he brought his sextants and charts with him and hid them, but he never needed to use them.  Despite the European characterization of the people as “primitives,” their knowledge of the sea astounded seasoned European sailors.

It’s now clear that South Pacific seafarers reached Hawaii (possibly following migrating flocks of golden plovers) and Rapa Nui (Easter Island) long before European sailors even knew the places existed.  Recent studies of sweet potato DNA suggest trade existed between Polynesia and South America long before the conquistadors arrived.

Botocudo man, South American natives of eastern Brazil, historical portrait, 1875Ancient Polynesian DNA retrieved from some Botocudo skulls in a Brazilian museum seems to indicate the presence of Polynesians in Brazil long before the 13,000 BP land bridge was supposed to have opened up in Alaska. (Drawings of Botocudo man shown)

In 2015, Harvard geneticist Pontus Skoglund discovered DNA links between Amazon Indians and the indigenous peoples of Australia and New Guinea.

 

The site at Monte Verde, in southern Chile, supports this claim.  Despite ferocious resistance from American archaeologists, the site is now recognized as being at least 18,500 years old.  Further, finds at the site suggest that the settlement was one of several that enjoyed a trade network.  So, how did people get to southern Chile?  Either they went all the way down the coast from Alaska, a very long journey, or they came across the southern Pacific.

As with the first book, I’m suggesting that some people would purposely seek out the unknown.  Perhaps they were outcasts, thrown out of their villages and left to survive if they could.  Many probably died, but some didn’t.  Or perhaps, just like modern people, some simply wanted to know what lay beyond the edge of the world.

Past the Last Island – Click on the picture for the Amazon link.

 

The Merger of Asian and African

The third book takes the biggest risk of all – suggesting a merger of the two groups.  But that seems to be what happens when different groups of people occupy the same area.  For many years, scientists claimed it wasn’t possible for Neanderthals and modern humans to mate, but most of us carry Neanderthal DNA, so clearly, they could and did mate.  And they probably learned a great deal from each other.

If a small group arrived in the Americas and started a settlement, they’d eventually fail unless they found new blood to add to the tribe.  I’m guessing that a group of 12 or 15 people couldn’t thrive.  In that case, a stranger would be both a threat and a promise.  A Meeting of Clans shows both responses.

Complicating this story is the presence of yet another group – outcasts who have become so violent they understand nothing else.

A Meeting of Clans

 

 

The Outsiders

MV Solutrean

The fourth book grew out of a strange theme in Mesoamerican and South American art – the bearded stranger who looks nothing like the others in the group.  Yet he (and it’s usually a male) is clearly in a position of authority.  So I combined this idea with part of the Solutrean Hypothesis put forth by Dennis Stanford of the Smithsonian Institution and Bruce Bradley of the University of Exeter.  Their theory suggests that humans from what is now northern Spain and southern France reached the Americas and brought several technological innovations with them, including the dart thrower (atlatl – illustrated below), eyed needles, and a thin, bi-faced point that supporters claim became the inspiration for the famous Clovis points that spread across North America.

Atlatl-illustration-1024x460

 

As you would expect, detractors abound.  Many complain about Stanford’s proposed route, which went north from Europe, skirted the ice and ended up in northern North America.  Since most of the very promising sites on the eastern coast of North America are in the south, I agree that the ice route is unlikely.  However, the idea of people crossing from northern Spain to the Americas is still very possible.  For one thing, the vast majority of the Clovis-style points have been found in the southeastern US.

clovis_continent_647kb

If the originators came from Asia, the majority should have been in the northwest.  For another, the travelers in my book would be following approximately the same route Columbus did, except a whole lot earlier!  It seems fitting somehow.

So the theory is a wild one, but it’s the basis of the newest book in the series.  And the hero is truly a misfit!

A Family of Strangers 

 

The Misfits and Heroes series

All the books are the children of controversy.  And that’s fine, at least with me.  They’re fiction.  They’re meant to open up new ideas for the reader’s consideration.  For too long we’ve repeated a story about everyone coming to the Americas across the Land Bridge from Asia about 13,000 years ago.  But with so much evidence to the contrary, we can no longer cling to that tale.  So the books present another possibility.

Much of what we thought we knew is changing.  New studies suggest modern humans may have arisen as far back as 300,000 years ago, perhaps in more than one place.  The story of human origins seems to have a great many subplots.

In the next ten or twenty years, the dates of very early settlements in the Americas will probably keep leaping backward as new finds surface.

 

If you haven’t already read the books, I hope you’ll check them out on Amazon or other on-line sellers or ask your local bookseller to get them.  Whether or not you subscribe to any of these theories, you can enjoy the books.  They’re just good stories, full of human drama and adventure. If you like them, tell others or leave a review – or both.  And thanks to those who have!

 

Sources and interesting reading:

Many of these topics are also covered in earlier posts on this blog, and sources are listed for each.

“Anthony Smith (explorer)” Wikipedia, htps://en.wikipedia.org/wiki/Anthony_Smith_(explorer)

Axel Busch sail across the Atlantic video, You Tube, https://www.youtube.com/watch?v=VPL35Ul0Ses

Botkin-Kowacki, Eva. “A final blow to myth of how people arrived in the Americas,” Christian Science Monitor, 10 August 2016,  https://www.csmonitor.com/Science/2016/0810/A-final-blow-to-myth-of-how-people-arrived-in-the-Americas

Bower, Bruce.  “People may have lived in Brazil more than 20,000 years ago,” Science News, 5 September 2017, https://www.sciencenews.org/blog/science-ticker-stone/stone-age-people-brazil-20000-years-ago?utm_content=buffer8976dd&utm_medium=social&utm_sour

Doucleff, Michaeleen.  “How the sweet potato crossed the Pacific way before the Europeans did,” NPR, Food, History, and Culture, 22 January 2013, http://www.npr.org/sections/thesalt/2013/01/22/16998044/how-the-sweet-potato-crossed-the-pacific-before-columbus

Gannon, Megan. “Study: The First Americans Didn’t Arrive by the Bering Land Bridge,” Mental Floss, 10 August 2016, http://mentalfloss.com/article/84506/first-americans-didnt-arrive-bering-land-bridge-study-says

Hawks, John. “Did humans approach the southern tip of South America more than 18,000 years ago?” John Hawks blog, http://johnhawks.net/weblog/reviews/archaeology/america/dillehay-monte-verde-2015.html

“Homo Floresiensis”  Wikipedia.  https://en.wikipedia.org/wiki/Homo_floresiensis

Hilleary, Cecily.  “Native Americans Call for Rethink of Bering Strait Theory,” VOA news, 19 June 2017, https://www.voanews.com/a/native-americans-call-rethink-of-bering-strait-theory/3901792.html

“New Evidence Puts Man in North America 50,000 Years Ago,” Science Daily, 18 November 2004, https://www.sciencedaily.com/releases/2004/11/041118104010.htm

Perkins, Sid. “DNA study links indigenous Brazilians to Polynesians: Sequences shared by far-away populations stir up a Palaeoamerican mystery,” Nature, 01 April 2013. http:///www.nature.com/news/dna-study-links-indigenous-brazilians-to-polynesians-1.12710

Pringle, Heather. “Primitive Humans Conquered Sea, Surprising Finds Suggest: Prehistoric axes found on a Greek island suggest that seafaring existed in the Mediterranean more than a hundred thousand years earlier than thought,” National Geographic, 17 February 2010, http://news.nationalgeographic.com/news/2010/02/100217-crete-primitive-humans-mariners-seafarers-mediterranean-sea/

“Solutrean Hypothesis,” Wikipedia, https://en.wikipedia.org/wiki/Solutrean_hypothesis

Vialou, Denis, Mohammed Benabdelbadi, James Feathers, Michel Fontugne, “Peopling South America’s center: the late Pleistocene site of Santa Elina, Antiquity, 08 August 2017, https://www.cambridge.org/core/journals/antiquity/article/peopling-south-americas-centre-the-late-pleistocene-site-of-santa-elina/04FF561EBC1883B6

Yirka, Bob. “Evidence suggests Neanderthals took to boats before modern humans,” Phys.org   1 March 2012, https://phys.org/news/2012-03-evidence-neanderthals-boats-modern-humans.html

Wade, Lizzie.  “Traces of some of South America’s earliest people found under ancient dirt pyramid,” Science, 24 May 2017, http://www.sciencemag.org/news/2017/traces-some-south-amercias-s-earliest-people-found-under-ancient-dirt-pyramid