Rainy Season in the Andes Reveals the Oldest Known Copper Death Mask

The front (left) and back (right) of a 3000-year-old copper mask. Small holes near the edges suggest the mask could have been attached with threads. Someone tried to repair the fracture near the left eye—note the holes near it.
The front (left) and back (right) of a 3000-year-old copper mask. Small holes near the edges suggest the mask could have been attached with threads. Someone tried to repair the fracture near the left eye—note the holes near it.
Cortés & Scattolin in Antiquity, 2017

A good downpour can be an archaeologist’s best friend. A recent rainy season in the northwest corner of Argentina revealed an ancient copper mask, green with rust, that had been hidden in the dirt for the last 3000 years. It's the oldest known copper artifact in the Andes—the longest continental mountain range on earth—and one of the oldest metalworks ever found in South America. Its discovery complicates the long-standing idea that metalworking began on the continent in Peru, thousands of miles north.

The mask looks a bit like a Jack-o’-lantern, with a little triangle for a nose and small openings for the eyes and mouth. Residents of the village of La Quebrada stumbled across the mask, as well as some bones, sticking out of the dirt in 2005. Shortly after, archaeologists came in to excavate the site, and they found that the mask wasn’t resting on just one burial, but was covering a collective grave with 14 bodies.

“We don’t know exactly what the actual meaning of the mask was in the context of this pre-Hispanic society,” archaeologist Leticia Inés Cortés, of Argentina’s National Council for Scientific and Technical Research, tells Mental Floss. Ancestor cults are very ancient and widespread in the region, Cortés says, so the mask could be a representation of the ancestor of the group and the rest of their community. Later DNA tests might reveal the relationships between the deceased.

The burial site was located near the 1900-year-old settlement of Bordo Marcial. However, radiocarbon dates showed that the tomb and mask are much older—dating back to 3000 years ago, before any villages even existed in the region.

During this time period, people in the area were just beginning to leave their hunter-gatherer way of life. But even before they truly settled down and started farming, they apparently figured out how to take advantage of the rich copper sources in the region that are still mined today.

Cortés, who described the mask in a new report in the journal Antiquity, tells Mental Floss that there’s been a tendency to treat Peru as the epicenter for technological innovation in the region. This mask, meanwhile, shows “that there is no one place for technological innovation, but many, including this region of the southern Andes.”

In other words, it’s not like a few geniuses in the central Andes figured out how to melt down metal to make beautiful objects and their invention spread from there.

Archaeologists might have previously assumed that cultures only started making fine metal objects when they had elite ruling classes and a capacity to create agricultural surpluses to free up time for skilled workers. But the mask from Argentina also builds on other evidence from the region demonstrating that displays of wealth might pre-date sedentary life.

“The discovery underscores the idea that social complexity—that is, a hierarchical social order—is not required for the emergence of early metal working,” says Mark Aldenderfer, an archaeologist at the University of California, Merced, who wasn’t involved in the study.

Aldenderfer previously discovered the oldest gold artifacts in the Americas, in the form of a necklace dating back to 4000 years in Peru near Lake Titicaca, when people in that region were just starting to settle into villages.

“The circulation of metal artifacts and their interment with the dead suggest that new forms of wealth accumulation and networking began to emerge during this transitional period,” Aldenderfer tells Mental Floss. "I suspect that the copper mask from Bordo Marcial reflects a similar social context."

Looking to Downsize? You Can Buy a 5-Room DIY Cabin on Amazon for Less Than $33,000

Five rooms of one's own.
Five rooms of one's own.
Allwood/Amazon

If you’ve already mastered DIY houses for birds and dogs, maybe it’s time you built one for yourself.

As Simplemost reports, there are a number of house kits that you can order on Amazon, and the Allwood Avalon Cabin Kit is one of the quaintest—and, at $32,990, most affordable—options. The 540-square-foot structure has enough space for a kitchen, a bathroom, a bedroom, and a sitting room—and there’s an additional 218-square-foot loft with the potential to be the coziest reading nook of all time.

You can opt for three larger rooms if you're willing to skip the kitchen and bathroom.Allwood/Amazon

The construction process might not be a great idea for someone who’s never picked up a hammer, but you don’t need an architectural degree to tackle it. Step-by-step instructions and all materials are included, so it’s a little like a high-level IKEA project. According to the Amazon listing, it takes two adults about a week to complete. Since the Nordic wood walls are reinforced with steel rods, the house can withstand winds up to 120 mph, and you can pay an extra $1000 to upgrade from double-glass windows and doors to triple-glass for added fortification.

Sadly, the cool ceiling lamp is not included.Allwood/Amazon

Though everything you need for the shell of the house comes in the kit, you will need to purchase whatever goes inside it: toilet, shower, sink, stove, insulation, and all other furnishings. You can also customize the blueprint to fit your own plans for the space; maybe, for example, you’re going to use the house as a small event venue, and you’d rather have two or three large, airy rooms and no kitchen or bedroom.

Intrigued? Find out more here.

[h/t Simplemost]

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Humans First Arrived in North America 30,000 Years Ago, New Studies Suggest

Researcher samples cave sediments for DNA.
Researcher samples cave sediments for DNA.
Devlin A. Gandy

People occupied North America by roughly 11,000 BCE, but the exact timeline of how early humans first arrived on the continent is contested. Two new studies suggest that humans were living in North America as far back as 30,000 years ago—preceding some earlier estimates by more than 15,000 years.

According to the traditional narrative, the first North Americans were big game hunters who crossed a land bridge connecting Asia to North America around 13,000 years ago. They left behind distinct, fluted arrowheads and bone and ivory tools that were dubbed “Clovis” tools. “This narrative, known as ‘Clovis-first,’ was widely accepted for most of the 20th century until new archaeological evidence showed that humans were present in the continent before Clovis,” Lorena Becerra-Valdivia, an archaeological scientist with the Universities of Oxford and New South Wales and co-author of the new studies, tells Mental Floss. “Within academia, an earlier arrival of 16,000-15,000 years ago was generally accepted.”

Her new analysis pushes back that date by several millennia. The study, “The Timing and Effect of the Earliest Human Arrivals in North America,” published in the journal Nature, looks at radiocarbon and luminescence data from Beringia, a region that historically linked Russia and Alaska, and North America. A statistical model built with this data indicates that a significant human population was living on the continent long before the Clovis era. According to the study, these humans were likely present before, during, and after the Last Glacial Maximum—the period when ice sheets covered much of North America 26,000 to 19,000 years ago.

Stone tool found below the Last Glacial Maximum layer.Ciprian Ardelean

These findings also contradict the land bridge theory. Rather than making a straightforward journey from Asia to North America and populating the southern half of the continent as the Clovis people were thought to have done, the first humans may have entered the Americas by traveling down the Pacific Coast. “These are paradigm-shifting results that shape our understanding of the initial dispersal of modern humans into Americas,” Becerra-Valdivia says. “They suggest exciting and interesting possibilities for what likely was a complex and dynamic process.”

The second, related study in Nature, ”Evidence of Human Occupation in Mexico Around the Last Glacial Maximum,” supports this new narrative. In it, researchers from institutes in Mexico, the UK, and other countries share artifacts and environmental DNA uncovered from Chiquihuite Cave—a high-altitude cave in Zacatecas, central Mexico. The tools, plant remains, and environmental DNA collected there paint of picture of human life dating back 13,000 to 30,000 years ago. The evidence shows that the site was more than just a stopping point, and the people living there had adapted to the high altitudes and harsh mountain landscape.

The two studies not only offer insight on when the first North Americans arrived on the continent, but who they were and how they lived. The Americas would have looked a lot different to humans during the Last Glacial Maximum than they did to the Clovis people millennia later. The fact that the first North Americans left behind far fewer artifacts than the Clovis people shows that their populations stayed relatively small. “Humans at Chiquihuite Cave would have faced the harshness of the Last Glacial Maximum, the peak of the last Ice Age, which would have kept their population at a low density,” Becerra-Valdivia says. “Clovis peoples, in contrast, thrived well after the last Ice Age, expanding widely through the continent during a period of globally warmer temperatures. Their life ways and subsistence patterns, therefore, would have been very different.”