Possible Traces of Calming Drug Found in Sacrificed Inca Children

Possible Traces of Calming Drug Found in Sacrificed Inca Children

Two Inca children slated for ritual sacrifice more than 500 years ago quaffed a special soothing concoction that has gone undetected until now. Those young victims, most likely a girl and a boy roughly 4 to 8 years old, drank a liquid that may have lightened their moods and calmed their nerves in the days or weeks before they were ceremonially killed and buried on Peru’s Ampato mountain, a new study suggests.

Possible Traces of Calming Drug Found in Sacrificed Inca Children
Previously excavated bodies of two ritually sacrificed Inca children, including this girl still wearing a ceremonial headdress, have yielded chemical clues to a beverage that may have been used to calm them in the days or weeks before being killed.

The youngsters’ bodies contained chemical remnants from one of the primary ingredients of ayahuasca, a liquid concoction known for its hallucinogenic effects, say bioarchaeologist Dagmara Socha of the University of Warsaw, Poland, and her colleagues (SN: 5/6/19). Analyses focused on hair from the girl’s naturally mummified body and fingernails from the boy’s partially mummified remains.

While no molecular signs of ayahuasca’s strong hallucinogens appeared in those remains, the team did find traces of harmine and harmaline, chemical products of Banisteriopsis caapi vines, Socha’s group reports in the June Journal of Archaeological Science: Reports. In ayahuasca, B. caapi amplifies the strength of other more hallucinogenic ingredients.

Recent investigations with rodents suggest that solutions containing harmine affect the brain much as some antidepressant drugs do. “This is the first [evidence] that B. caapi could have been used in the past for its antidepressant properties,” Socha says.

While research on whether harmine can lessen depression or anxiety in people is in its infancy, archaeologist Christine VanPool of the University of Missouri, Columbia, thinks it’s possible that the ingredient was used on purpose.

Spanish documents written after the fall of the Inca empire say that alcohol was used to calm those about to be sacrificed, so other brews may have been used too, speculates VanPool, who was not part of Socha’s team.

“I tentatively say yes, the Inca understood that B. caapi reduced anxiety in sacrificial victims,” she says.

Spanish chroniclers may have mistakenly assumed that Inca sacrifice victims drank a popular corn beer known as chicha rather than a B. caapi beverage, Socha suspects.

No evidence of alcohol appeared in molecular analyses of the Ampato mountain children. But alcohol consumed just before being sacrificed would have gone undetected in the researchers’ tests.

Trace evidence did also indicate that both children had chewed coca leaves in the weeks leading up to their deaths.

Spanish written accounts described the widespread use of coca leaves during Inca rites of passage. Those events included ritual sacrifices of children and young women, who were believed to become envoys to various local gods after death.

The grave of an Inca boy who was ritually sacrificed in the Andes more than 500 years ago included valuable items, such as this silver llama figurine, signifying his status as an envoy to local deities.

The sacrificed children were found during a 1995 expedition near the summit of Ampato (SN: 11/11/95). It would have taken at least two weeks and possibly several months for the pair of Inca children to complete a pilgrimage from wherever their homes were located to the capital city of Cuzco for official ceremonies and then to Ampato mountain, Socha says.

Giving those kids a calming B. caapi drink as well as coca leaves to chew doesn’t surprise archaeologist Lidio Valdez of the University of Calgary, who did not participate in the new study.

Children may not have understood that they were going to die, but they had to endure the rigors and loneliness of a long trip while separated from their families, he says.  

Valdez suspects Ampato mountain was originally called Qampato, a word meaning toad in the Inca language. Andean societies such as the Inca associated toads with water or rain. “The mountain was also likely linked with water or rain and the children perhaps sacrificed to ask the mountain gods to send water,” he says.

California Museum Repatriates Remains and Artifacts

California Museum Repatriates Remains and Artifacts

The Santa Barbara Museum of Natural History turned over to the Santa Ynez Band of Chumash Indians the partial remains of about 1,000 Chumash and pre-Chumash people who had lived throughout the South Coast over a time span of 13,000 years.

In addition, UCSB turned over the human remains of 400 individuals and nearly 4,000 funerary objects. Most of these were unearthed when the UCSB campus was first being built in 1950 and date back as far as 4,000 years. 

This historic transfer was done in accordance with the federal Native American Graves Protection and Repatriation Act, a law requiring museums and institutions of higher learning to turn over such remains and artefacts to federally recognized Native American representatives upon request.

Tribal Chairman Kenny Kahn

That request was issued in late October 2021 by the Santa Ynez Band of Chumash Indians. The last of the remains, as well as a large number of funerary artefacts, were transferred from the Museum of Natural History and UCSB to the Santa Ynez Band officials in late April. 

In a carefully crafted press release issued by both the Santa Ynez Band and the Museum of Natural History, Tribal Chairman Kenny Kahn stated, “These items have come home to our tribe, and it allows us to do the important work of repatriation and reburial.

We will continue to have a close working relationship with the Santa Barbara Museum of Natural History and consider it to be a collaborative partner in the community.”

Museum director Luke Swetland added, “The Museum has been honoured to care for this important cultural heritage for many years and finds it deeply satisfying that we can transfer custody back to the Chumash Community.”

The Museum’s Chumash and pre-Chumash collection, the most extensive in the world, included remains from 1,011 individuals and 36,943 associated funerary objects. With one notable exception, the bones in the museum collection date as far back as 7,000 BCE.

The exception is three femur bones found protruding from a creek channel on Santa Rosa Island in 1959 by Phil Orr, the museum’s then-director of anthropology.

Scientific analysis has proved those bones to be 13,000 years old, a discovery that makes them the oldest human remains found anywhere in North America.

The discovery adds considerable credence to a theory of human migration known as the “Kelp Superhighway Hypothesis,” which suggests that the first humans arrived in North America not by land, as has long been proposed, but by sea, following the coastline of the Pacific Rim of northeastern Asia and Beringia down to South America, where plentiful kelp beds provided sufficient food for the early explorers.

Most of the remains and artefacts transferred to the tribe show the technology and art developed by Chumash and pre-Chumash residents of the region, how they adorned themselves, what tools they had at their disposal, and what materials they used, and how they buried their dead. 

California Museum Repatriates Remains and Artifacts
Ancient Chumash beadwork

The collection of Native American remains and artefacts kept by museums and institutions of higher learning has long been a highly charged issue.

The Museum of Natural History first began amassing its collection in 1922 under the direction of museum anthropologists David Banks Rogers and John Peabody Harrington, who worked closely with Chumash people in the region recording their language and culture.

By the 1970s, the presence of Native American monitors emerged as a force for cultural preservation at any major construction sites located near what had once been tribal land.

In 1989, the museum created the California Indian Advisory Council, which included representatives from as many of the local Chumash bands as possible, not just those representing the Santa Ynez Band.

For the past 40 years, the museum ​— ​under the direction of John Johnson, the museum’s most recent anthropologist ​— ​collaborated with many academic researchers to study the museum’s collections consistent with the best practices established by the Society for American Archeology and the American Alliance of Museums.

In addition, Johnson has engaged closely with many Chumash individuals to study their cultural heritage, he said, “as a way to enlarge their understanding of themselves and their community.” 

The current concept of time was created by the Sumerians 5,000 years ago!

The current concept of time was created by the Sumerians 5,000 years ago!

Any ancient civilizations had a concept of time, although vague. Obviously, they knew that the day started when the sun rose and the night when the sun disappeared over the horizon.

But the ancient Sumerians, watching the skies, developed a much more complex system.

They realized that it was possible to divide the hours into 60 minutes and the days into 24 hours, developing the time measurement systems used today.

Ancient civilizations looked to the heavens to mark the passage of time.

The Sumer, or “land of the civilized kings”, flourished in Mesopotamia, which today is located in modern Iraq, around 4,500 BCE.

The Sumerians created an advanced civilization with its own system of elaborate language and writing, architecture and arts, astronomy and mathematics.

The Sumerian Empire did not last long. However, for more than 5,000 years, the world remained committed to its definition of time.

The celebrated Babylonian mathematical tablet Plimpton 322.

The Sumerians initially favoured the number 60, as it was very easily divisible. The number 60 can be divided by 1, 2, 3, 4, 5, 6, 10, 12, 15, 20 and 30 into equal parts. In addition, ancient astronomers believed that there were 360 days in a year, a number that 60 fits perfectly six times.

Ancient people and the passage of time

Many of the ancient civilizations had an approximate notion of the passage of time. as the passage of days, weeks, months and years.

A month was the duration of a complete lunar cycle, while a week was the duration of a phase of the lunar cycle.

A year could be estimated based on the changes in the season and the relative position of the sun. The ancients realized that observing the skies could provide many answers to questions considered complex in their day.

Akkadian soldiers slaying enemies, circa 2300 BC, possibly from a Victory Stele of Rimush

When the Sumerian civilization came to decay, being conquered by the Akkadians in 2400 BCE and later by the Babylonians in 1800 BCE. In this way, the notion of dividing time into 60 units persisted and spread all over the world.

A round clock and a 24-hour day

Ancient Mesopotamian sundial at Archaeological Museum, Istanbul

When geometry was unveiled by the Greeks and the Islamists, the ancients realized that the number 360 was not only the time period of the Earth’s ideal orbit but also the perfect measure of a circle, forming 360 degrees.

Israeli study: Humans were hyper-carnivorous apex predators for 2 million years

Israeli study: Humans were hyper-carnivorous apex predators for 2 million years

Palaeolithic cuisine was anything but lean and green, according to a 2021 study on the diets of our Pleistocene ancestors. For a good 2 million years, Homo sapiens and their ancestors ditched the salad and dined heavily on meat, putting them at the top of the food chain.

It’s not quite the balanced diet of berries, grains, and steak we might picture when we think of ‘paleo’ food. But according to anthropologists from Israel’s Tel Aviv University and the University of Minho in Portugal, modern hunter-gatherers have given us the wrong impression of what we once ate.

“This comparison is futile, however, because 2 million years ago hunter-gatherer societies could hunt and consume elephants and other large animals – while today’s hunter-gatherers do not have access to such bounty,” said Miki Ben‐Dor from Israel’s Tel Aviv University in April last year.

A look through hundreds of previous studies on everything from modern human anatomy and physiology to measures of the isotopes inside ancient human bones and teeth suggests we were primarily apex predators until roughly 12,000 years ago.

Reconstructing the grocery list of hominids who lived as far back as 2.5 million years ago is made all that much more difficult by the fact plant remains don’t preserve as easily as animal bones, teeth, and shells.

Other studies have used chemical analysis of bones and tooth enamel to find localized examples of diets heavy in plant material. But extrapolating this to humanity as a whole isn’t so straightforward.

We can find ample evidence of game-hunting in the fossil record, but to determine what we gathered, anthropologists have traditionally turned to modern-day ethnography based on the assumption that little has changed.

According to Ben-Dor and his colleagues, this is a huge mistake.

“The entire ecosystem has changed, and conditions cannot be compared,” said Ben‐Dor. The Pleistocene epoch was a defining time in Earth’s history for us humans. By the end of it, we were marching our way into the far corners of the globe, outliving every other hominid on our branch of the family tree.

Above: Graph showing where Homo sapiens sat on the spectrum of a carnivore to herbivore during the Pleistocene and Upper Pleistocene (UP).

Dominated by the last great ice age, most of what is today Europe and North America were regularly buried under thick glaciers. With so much water locked up as ice, ecosystems around the world were vastly different to what we see today. Large beasts roamed the landscape, including mammoths, mastodons, and giant sloths – in far greater numbers than we see today.

Of course, it’s no secret that Homo sapiens used their ingenuity and uncanny endurance to hunt down these massive meal tickets. But the frequency with which they preyed on these herbivores hasn’t been so easy to figure out. Rather than rely solely on the fossil record, or make tenuous comparisons with pre-agricultural cultures, the researchers turned to the evidence embedded in our own bodies and compared it with our closest cousins.

“We decided to use other methods to reconstruct the diet of stone-age humans: to examine the memory preserved in our own bodies, our metabolism, genetics and physical build,” said Ben‐Dor.

“Human behaviour changes rapidly, but evolution is slow. The body remembers.”

For example, compared with other primates, our bodies need more energy per unit of body mass. Especially when it comes to our energy-hungry brains. Our social time, such as when it comes to raising children, also limits the amount of time we can spend looking for food.

We have higher fat reserves and can make use of them by rapidly turning fats into ketones when the need arises. Unlike other omnivores, where fat cells are few but large, ours are small and numerous, echoing those of a predator. Our digestive systems are also suspiciously like that of animals higher up the food chain. Having unusually strong stomach acid is just the thing we might need for breaking down proteins and killing harmful bacteria you’d expect to find on a week-old mammoth chop.

Even our genomes point to a heavier reliance on a meat-rich diet than a sugar-rich one.

“For example, geneticists have concluded that areas of the human genome were closed off to enable a fat-rich diet, while in chimpanzees, areas of the genome were opened to enable a sugar-rich diet,” said Ben‐Dor. The team’s argument is extensive, touching upon evidence in tool use, signs of trace elements and nitrogen isotopes in Paleolithic remains, and dental wear. It all tells a story where our genus’ trophic level – Homo’s position in the food web – became highly carnivorous for us and our cousins, Homo erectus, roughly 2.5 million years ago, and remained that way until the upper Paleolithic around 11,700 years ago.

From there, studies on modern hunter-gatherer communities become a little more useful, as a decline in populations of large animals and fragmentation of cultures around the world saw to more plant consumption, culminating in the Neolithic revolution of farming and agriculture. None of this is to say we ought to eat more meat. Our evolutionary past isn’t an instruction guide on human health, and as the researchers emphasize, our world isn’t what it used to be.

But knowing where our ancestors sat in the food web has a big impact on understanding everything from our own health and physiology to our influence over the environment in times gone by.

Aztec war sacrifices found in Mexico may point to the elusive royal tomb

Aztec war sacrifices found in Mexico may point to the elusive royal tomb

Aztec war sacrifices found in Mexico may point to the elusive royal tomb
An archaeologist works on a 500-year-old partially-excavated stone box containing an Aztec offering

A newly discovered trove of Aztec sacrifices could lead archaeologists to an elusive Aztec emperor’s tomb. Such a discovery would mark a first since no Aztec royal burial has yet been found despite decades of digging.

The sacrificial offerings, including a richly adorned jaguar dressed as a warrior, were found in Mexico City, Reuters reports.

“We have enormous expectations right now,” lead archaeologist Leonardo Lopez Lujan said.

“As we go deeper we think we’ll continue finding very rich objects.”

Discovered off the steps of the Aztec’s holiest temple, the sacrificial offerings also include a young boy, dressed to resemble the Aztec war god and solar deity, and a set of flint knives elaborately decorated with mother of pearl and precious stones.

The offerings were deposited by Aztec priests over five centuries ago in front of the temple where the earliest historical accounts describe the final resting place of Aztec kings.

The interior of a stone box shows an Aztec offering including a set of black flint knives decorated to represent warriors

Only around a tenth of the box has been excavated but plenty of artefacts have already been uncovered, including a large number of shells, and bright red starfish that it’s believed represented the watery underworld the Aztecs believed the sun travelled through at night before emerging in the east to begin a new day.

“There’s an enormous amount of coral that’s blocking what we can see below,” said archaeologist Miguel Baez, part of the excavation team.

Route to an Aztec king?

Chroniclers detailed the burial rites of three Aztec kings, all brothers who ruled from 1469 to 1502.

According to these accounts, the rulers’ ashes were deposited with opulent offerings and the hearts of sacrificed slaves.

In 2006, a huge monolith of the Aztec earth goddess was found nearby with an inscription corresponding to the year 1502, which is when the empire’s greatest ruler and the last of the brothers, Ahuitzotl, passed away.

Elizabeth Boone, an ancient Mexico specialist at Tulane University, notes that the jaguar may represent the king as a fearless warrior.

“You could have Ahuitzotl in that box,” she said.

An Ex-Navy Officer Exposes The Truth About Antarctica

An Ex-Navy Officer Exposes The Truth About Antarctica

Everyone is aware that Antarctica is the world’s most mysterious continent. And the continent’s mystery deepens when we find that the FAA has established a No-Fly Zone in its centre. However, before we continue down the rabbit hole any further, we need to take a close look at the Piri Reis Map.

The Piri Reis map portrays today’s ice-free Antarctic continent as a verdant continent.

Around 500 years ago, a Russian expedition commanded by Fabian Gottlieb von Bellingshausen and Mikhail Lazarev unearthed this one-of-a-kind chart.

While escorting a party of explorers and scientists on the cold continent, a navy officer recalls his escapades. He also witnessed a medical emergency in Antarctica.

When the naval officer was forced to travel the Antarctic ice due to a medical emergency, he noticed a massive ice crack.

He said that the whole team of researchers he accompanied to Antarctica vanished abruptly for two weeks, during which no one could locate them.

When they returned from wherever they had gone, they were outraged by what had occurred and were instructed not to speak about it by high officials.

In 2012, a satellite photographed an odd oval object in Antarctica.

This weird structure is on the ice, and early examination has revealed that it is either a natural phenomenon or a man-made construction.

However, this is not a one-off occurrence. Numerous fascinating constructions, unusual artefacts, and even huge pyramids have been discovered in Antarctica over time.

The image below depicts an unidentified object that collided with a hill in Antarctica.

One thing is certain: Antarctica has always been and will continue to be a mystery area not accessible to the general public.

There are ideas that an old subterranean society exists, and that certain gateways in Antarctica offer access to this realm.

A rare 2,300-year-old tomb in Istanbul holds a partially cremated body

A rare 2,300-year-old tomb in Istanbul holds a partially cremated body

A 2,300-year-old brick tomb contains the cremated remains of an individual whose body was likely placed in the tomb and then set on fire, archaeologists in Istanbul have announced. A tomb-like this is a rare find, archaeologists say.

A rare 2,300-year-old tomb in Istanbul holds a partially cremated body
This photo shows the cremated remains found in a 2,300-year-old tomb in Turkey.

At the time this person was buried, the area was known as Chalcedon, then a flourishing city during the Hellenistic era. The tomb, which contains the cremated remains of at least one person, was found at the Haydarpaşa Train Station in Istanbul.

Archaeologists also found a terracotta goblet and a perfume bottle within it, Rahmi Asal, director of the Istanbul Archaeological Museums, told the Turkish government-owned Anadolu Agency. 

“This is very valuable. It is one of the oldest finds in this area,” Asal told the news agency, adding that “perhaps this will give us many more valuable insights” into the area’s past.

The excavation was carried out prior to the renovation and expansion of the railway system in the region and has unearthed remains throughout Istanbul’s history. 

Although the individual’s body was buried inside the tomb, some of the bones survived, a preliminary analysis revealed. “I have never seen this type of a cremation tomb from the Hellenistic period,” Asal said.

Flourishing kingdom

This area shows the general excavation area where the tomb was found. Remains from throughout Istanbul’s history were found during the dig.

At the time the tomb was built, Chalcedon was a thriving city. “Chalcedon was a powerful player in international politics,” Noah Kaye, an assistant professor of history at Michigan State University who is not involved with the new excavation, told Live Science in an email. 

Kaye noted that between 235 B.C and 220 B.C., Chalcedon, along with Byzantion (a nearby city), levied heavy tolls on ships passing through the Bosphorus strait, which separates Asia from Europe, into the Black Sea.

The cities extracted the tolls with the help of Egypt’s navy, which was then under the control of the Ptolemaic dynasty. 

Despite Chalcedon’s success at the time, some ancient writers referred to Chalcedon as the “land of the blind” because there were other supposedly other areas nearby that were better suited for a city.

In the fourth century A.D., the Roman emperor Constantine founded Constantinople, a city that would eventually engulf both Byzantion and Chalcedon and become the centre of the Byzantine Empire.

The discovery of the tomb may help shed light on what Chalcedon was like, Felix Pirson, director of the German Archaeological Institute’s Istanbul branch, told Live Science in an email. “It looks like a very important discovery indeed,” Pirson said, noting that we know little about what this area was like before Constantinople was founded. 

“More information about burial customs and funerary culture in general, which sheds a light on crucial topics such as social differentiation or identities, is of utmost importance,” said Pirson, who was not involved in the discovery of the tomb. 

An underground city unearthed in Turkey may have been a refuge for early Christians

An underground city unearthed in Turkey may have been a refuge for early Christians

Archaeologists in southeastern Turkey have unearthed a vast underground city that was built almost 2,000 years ago and could have been home to up to 70,000 people. The subterranean complex may have been a protected space that early Christians used to escape Roman persecution.

An underground city unearthed in Turkey may have been a refuge for early Christians
Many artefacts from the second and third centuries A.D. were unearthed in an underground city in Mardin’s Midyat district in Turkey, as shown in this April 16 photo.

The first underground chambers of the ancient complex were found about two years ago, during a project to clean and conserve historical streets and houses in the Midyat district of Mardin province.

Workers on the project first discovered a limestone cave, and then a passage into the rest of the hidden city, Gani Tarkan, the director of the Mardin Museum and the head of the excavations, told the Turkish government-owned Anadolu Agency. That said, some of the local people had already known that there were caves below Midyat, but had not known there was an entirely underground city, Tarkan told Live Science in an email.

Now, 49 chambers have been unearthed in the colossal complex, as well as connecting passages, water wells, grain storage silos, the rooms of homes, and places of worship, including a Christian church and a large hall with a Star of David symbol on the wall, which appears to be a Jewish synagogue.

Artefacts found in the caverns — including Roman-era coins and oil lamps —  indicate that the subterranean complex was built sometime in the second or third centuries A.D, Tarkan told Live Science.

And there is still a large area to excavate. Tarkan estimates that less than 5% of the underground city, now known as Matiate, has been explored so far — an area of over 100,000 square feet (10,000 square m). He thinks the entire complex may be larger than 4 million square feet (400,000 square m) in the area and would have been large enough to accommodate between 60,000 and 70,000 people.

It’s possible that the city originally served as a refuge: “It was first built as a hiding place or escape area,” he suggested. 

“Christianity was not an official religion in the second century [and] families and groups who accepted Christianity generally took shelter in underground cities to escape the persecution of Rome,” Tarkan said. “Possibly, the underground city of Midyat was one of the living spaces built for this purpose.”

Ancient geographers wrote that the southern region of what is now Turkey was inhabited by Christians before its more central parts and that Christians in the area were heavily persecuted, not only by the Romans but also by the Persians in the fourth century, he told Live Science. 

Medieval travellers in the region at times of war also reported that they’d found entire towns and cities completely empty of inhabitants, and so it was possible the inhabitants had in fact hidden underground in places like Matiate, he said. 

In the early first century A.D., Roman officials did not distinguish between Jews and Christians, because many early Christians were also Jews. But that changed in A.D. 64 when Emperor Nero blamed and then killed Christians for a fire that swept through Rome, according to Britannica. Although the persecutions were sporadic, they continued until the early fourth century; and while the numbers are debated, it’s likely that thousands of Christians were executed during this time. In A.D. 313, however, Emperor Constantine issued the Edict of Milan, making Christianity legal and ending the persecutions; and in 380 Emperor Theodosius issued the Edict of Thessalonica, making it the official religion of the Roman Empire.

Lozan Bayar, an archaeologist with Mardin’s Office for Protection and Supervision, agreed that Matiate might have been used by early Christians to escape Roman persecution.

“In the early period of Christianity, Rome was under the influence of pagans before later recognizing Christianity as an official religion,” he told Hürriyet Daily News, a Turkish news outlet. Such underground cities provided security to people and they also performed their prayers there. They were also places of escape.”

Hidden city

Excavation teams discovered that a cave, which was found during works carried out in the historical streets and houses in the district two years ago, opened up into underground corridors that provide passages to different places.

The ancient city of Midyat above the subterranean complex was likely first built by the Hurrians, a people who occupied parts of central and southern Anatolia (in present-day Turkey) up to 4,000 years ago, during the Bronze Age. The city first appears in Assyrian records in the ninth century B.C. as “Matiate” — a name that meant “city of caves,” possibly because there are many limestone caves nearby — the name that has now been assigned to the underground city.

Midyat was occupied, in turn, by Arameans, Persians, Greeks, Romans, Byzantines and Ottomans during its long history, with each civilization building on the work of the last. As a result, Midyat is now well-known for its ancient architecture, and it draws up to 3 million tourists every year, according to Hürriyet Daily News. More than 100 traditional houses near the city’s centre are now protected because of their historical significance, and nine churches and monasteries in the city are listed as UNESCO World Heritage sites.

Tarkan thinks the hidden city of Matiate will be an additional attraction when the excavations are completed.” While the houses on the top are dated to the 17th, 18th, and 19th centuries, there is a completely different city underneath,” he said. “That city is 1,900 years old.”

Going underground

The underground city, which is called “Matiate,” is home to many places of worship, silos, water wells, passages and corridors.

The tradition of building homes and cities underground is well established in Turkey. More than 40 ancient subterranean cities have been found there, including Derinkuyu — an enormous complex in the central Cappadocia region that was burrowed into soft volcanic rock, possibly by the Anatolian people known as the Phrygians in the eighth and ninth centuries B.C.

Derinkuyu was large enough to hold 20,000 people, and was occupied until the medieval period: for example, Byzantine Christians and Jews used it as a refuge during Arab invasions between the eighth and 12th centuries A.D. Science writer Will Hunt, author of the book “Underground: A Human History of the World’s Beneath Our Feet” (Random House, 2019) said there were many stories of people in what is now Turkey who had found holes in their land, or sometimes right inside their homes, that opened up to sprawling warrens of human-made tunnels.

“Some go down more than 10 levels and have space for tens of thousands of people,” he told Live Science in an email. “They are like upside-down castles.”

Hunt echoes Tarkan’s suggestion that the underground structures at Matiate may have been used in defence. “Beneath any settlement, there would have been an underground city, where people would take cover when they were under attack,” he said.

And it wasn’t just in Turkey: “all over the world, throughout history, whenever there is a threat on the surface, people have dark underground [spaces] to protect themselves from danger,” he said. “It’s practically instinctual.”

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