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Historic

1,600-Year-Old Elongated Skull with Stone-Encrusted Teeth Found in Mexico Ruins


1,600-Year-Old Elongated Skull with Stone-Encrusted Teeth Found in Mexico Ruins

The 1600-year-old skeleton of an upper-class woman whose skull was purposely deformed and teeth encrusted with mineral stones was found by archeologists near ancient Teotihuacan ruins of Mexico.

Archeologists who found the 1,600-year-old skeleton near Mexico’s ancient Teotihuacan said the woman was 35-40 when she died with intentionally deformed skull and teeth encrusted with mineral stones


When she died, between the ages of 35 and 40, the woman was buried with 19 jars that served as offerings, the National Anthropology and History Institute said.

The institute said in a statement that her cranium had been elongated by being compressed in a “very extreme” manner, a technique commonly used in the southern part of Mesoamerica, not the central region where she was found.

Her teeth contained two round pyrite stones, which were encrusted in her top front teeth.

 

This was a practice that was used among the nobility in Maya regions in southern Mexico and Central America.

The Maya are credited with being the masters of cosmetic dentistry as they were known to decorate teeth by embedding them with precious stones or by carving notches and grooves into them.


Tiny holes were chipped out of teeth and ornamental stones—including jade—were attached with an adhesive made out of natural resins, such as plant sap, which was mixed with other chemicals and crushed bones.

The dentists likely had a sophisticated knowledge of tooth anatomy because they knew how to drill into teeth without hitting the pulp inside.

Gold studded teeth, Pre-Columbian Ecuador.


Last year, archaeologists discovered liquid mercury in a subterranean tunnel beneath the Temple of the Feathered Serpent in Teotihuacan, which may represent an underworld river that leads the way to a Royal tomb or tombs.

The remains of the kings of Teotihuacan, some of the most powerful rulers of the pre-Hispanic world, have never been found.

Such a discovery would be monumental as it would unravel many of the mysteries surrounding this ancient civilization.

The enigmatic pre-Hispanic city of Teotihuacan, some 50 kilometers (30 miles) north of Mexico City, thrived between the first and eighth centuries, after which its civilization vanished.

Its two majestic Sun and Moon pyramids are major tourist attractions.


The 1,600-year-old skeleton of an upper-class woman found near Mexico’s ancient Teotihuacan wore a prosthetic lower tooth made of a green stone known as serpentine

 

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Historic

Hundreds of gold coins dating to Rome’s Imperial era found in Italy


In mint condition! Millions of pounds-worth of pristine 5th-century gold coins are found buried in a pot under an Italian theatre.

It was an amphora, not a pot, but archaeologists found a literal jackpot in a dig in northern Italy last week. No word on if there was a rainbow. Hundreds of gold coins dating from Rome’s late Imperial era, the 4th or 5th century, were found at a dig in Como, Italy, according to the Italian Ministry of Culture.

Hundreds of gold coins dating to the 4th or 5th centuries were found in an archaeological dig in Como, Italy.


The ministry shared photos of the shiny coins, which were spilling out of an amphora — a Roman jar with two handles — buried in the dirt.

Inside was an estimated 300 gold coins from the late Roman Imperial era, which took place in the 5th century, just before the empire’s untimely demise. Despite their age, the coins are in miraculous condition, with all the images and engravings easily visible.

“We do not yet know in detail the historical and cultural significance of the find,” said Alberto Bonisoli, the culture minister of Italy’s Ministry of Cultural Heritage and Activities (Ministero per I Beni e le Attività Culturali) in a press release.

 

“But that area is proving to be a real treasure for our archaeology. A discovery that fills me with pride”.

A priceless stash of fifth-century gold coins has been found buried in a pot under an Italian theatre
Archaeologists digging on the former site of the Cressoni Theatre in Como were stunned to discover them

The urn and its stash of gold were taken to a government restoration laboratory in Milan, where they will be thoroughly examined. This might take a while, however, as the coins were found tightly packed into little stacks so that they can only be removed one at a time with careful precision.


So far, historians have successfully separated 27 coins, all of which are from the 5th century. This makes this treasure particularly intriguing, as, during this time, there was very little currency flow in the Roman economic system.

The coins feature engravings that suggest they were minted during the reigns of five different emperors: Honorius, Valentinian III, Leon I, Antonio, and Libio Severo.


The Italian media has predicted that the coins, none of which reach beyond 474 AD, could be worth millions of euros. And that doesn’t even take into account everything that was found in the urn, or the urn itself.

Keeping the coins company was a bar of gold, and at the bottom of the urn, archaeologists predict even more precious objects might be found.

According to The History Blog, “no such hoard has even been unearthed in northern Italy before”.

The archaeological site may seem like an odd place to stash such valuable items, but whoever placed them there likely “buried it in such a way that in case of danger they could go and retrieve it.” That’s according to Maria Grazia Facchinetti, an expert in rare coins. Beyond the location, the way that the coins were hidden has given historians like Facchinetti a few hints about the owner’s identity.

“They were stacked in rolls similar to those seen in the bank today,” she says.


“All of this makes us think that the owner is not a private subject, rather it could be a public bank or deposit”.

Facchinetti’s theory is bolstered by the fact that the theatre is just a few steps away from the city’s forum – a place where merchants, banks, and temples often did business.


Although the ancient Roman neighborhood was also known for its wealth, so a miserly and paranoid private owner is not out of the question. Layer analysis will now be used to determine if the coins were all deposited in the same era or if they were placed in the urn over a period of time.

The Cressoni Theatre, where the coins were found, is not far from the ancient city of Novum Comum, home to many other important Roman artifacts. The historic theatre was opened in 1807 but was converted into a cinema that closed in 1997.

Today, the plan is to demolish the old building and replace it with luxury residences. The recent discovery, however, has stalled all future work at the site until further excavations can be made.

 

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Historic

The oldest submerged city: A 5000 old sunken perfectly designed city in southern Greece


The oldest submerged city: A 5000 old sunken perfectly designed city in southern Greece

There is a little village called Pavlopetri, in the Peloponnesus region of southern Greece, where a nearby ancient city dating back 5,000 years resides.

Pavlopetri – Laconia


This is however not a typical archeological site, the city is located about 4 meters underwater and is believed to be the oldest known submerged city in the world.

The community is incredibly well built with roads, two floors with parks, temples, a cemetery, and a complex water management system including channels and water pipes.

3D reconstruction image of the sunken city

In the center of the city, was a square or plaza measuring about 40×20 meters and most of the buildings have been found with up to 12 rooms inside. The design of this city surpasses the design of many cities today.

 

The city is so old that it existed in the period that the famed ancient Greek epic poem ‘Iliad’ was set in.

Research in 2009 revealed that the site extends for about 9 acres and evidence shows that it had been inhabited prior to 2800 BC.


Scientists estimate that the city was sunk in around 1000 BC due to earthquakes that shifted the land.

However, despite this and even after 5,000 years, the arrangement of the city is still clearly visible and at least 15 buildings have been found.


The city’s arrangement is so clear that the head of the archaeological team, John Henderson of the University of Nottingham, and his team, have been able to create what they believe is an extremely accurate 3D reconstruction of the city, which can be viewed in the videos below.

3D reconstruction image of the sunken city

Historians believe that the ancient city had been a center for commerce for the Minoan Civilization and the Mycenaean civilization.

Scattered all over the place there are large storage containers made from clay, statues, everyday tools, and other artifacts.

The name of the city is currently unknown as well as its exact role in the ancient world.

The featured image shows the original foundations of the city behind underneath the reconstructed pillars and walls of one of the buildings.


 

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Historic

A California Couple Found $10 Million In Gold Coins In Their Backyard


A California Couple Found $10 Million In Gold Coins In Their Backyard

After all, a California couple who have discovered a $10 million cache of hidden gold coins may not be so lucky The coins may have been stolen from the U.S. Mint in 1900 and thus be the property of the government, according to a published report.


A search of the Haithi Trust Digital Library provided by Northern California’s fishery guide Jack trout, who is also a historian and collector of rare coins, brought up the news of theft on the website of the San Francisco Chronicle.

The anonymous California couple spotted the edge of an old can on a path they had hiked many times before several months ago. Poking at the can was the first step in uncovering a buried treasure of rare coins estimated to be worth $10 million.

This image provided by the Saddle Ridge Hoard discoverers via Kagin’s, Inc., shows one of the six decaying metal canisters filled with 1800s-era U.S. gold coins unearthed in California by two people who want to remain anonymous.

“It was like finding a hot potato,” the couple told coin expert Don Kagin from Kagin’s, Inc. The couple hired the president of Kagin’s, Inc. and Holabird-Kagin Americana, a western Americana dealer and auctioneer, to represent them.

 

The coins are mostly uncirculated and in mint condition, and they add up in face value to $27,000. “Those two facts are a match of the gold heist in 1900 from the San Francisco Mint,” the newspaper reported.

Jack Trout told the paper that an 1866 Liberty $20 gold piece without the words “In God We Trust” was part of the buried stash, and the coin may fetch over $1 million at auction because it’s so rare.


A California couple found 1,427 Gold-Rush era U.S. gold coins in their yard when they were out walking their dog last year. The collection — valued at $11 million

“This was someone’s private coin, created by the mint manager or someone with access to the inner workings of the Old Granite Lady (San Francisco Mint),” Trout told the newspaper. “It was likely created in revenge for the assassination of Lincoln the previous year (April 14, 1865). I don’t believe that coin ever left The Mint until the robbery. For it to show up as part of the treasure find links it directly to that inside job at the turn of the century at the San Francisco Mint.”

Mint spokesman Adam Stump issued this statement when contacted by ABC News: “We do not have any information linking the Saddle Ridge Hoard coins to any thefts at any United States Mint facility. Surviving agency records from the San Francisco Mint have been retired to the National Archives and Records Administration (NARA), under Record Group 104.  When news of the stash first broke, coin dealer Kagin spoke about the rarity of such a find.


“Since 1981, people have been coming to us with one or two coins they find worth a few thousand dollars, but this is the first time we get someone with a whole cache of buried coins… It is a million to one chance, even harder than winning the lottery,” Kagin told ABCNews.com.

The couple is trying to remain anonymous after finding the five cans of coins last spring on their Tiburon property in northern California and conducted an interview with Kagin.

“I never would have thought we would have found something like this. However, in a weird way I feel like I have been preparing my whole life for it,” the couple said.

“I saw an old can sticking out of the ground on a trail that we had walked almost every day for many, many years. I was looking down in the right spot and saw the side of the can. I bent over to scrape some moss off and noticed that it had both ends on it,” they said.

It was the first of five cans to be unearthed, each packed with gold coins.


“Nearly all of the 1,427 coins, dating from 1847 to 1894, are in uncirculated, mint condition,” said Kagin told ABCNews.com.

He said that the couple plan to sell most of the coins, but before they do, they are “loaning some to the American Numismatic Association for its National Money Show, which opens Thursday in Atlanta.”


“Some of the rarest coins could fetch as much as $1 million apiece,” said Kagin. He also said that they wish to sell 90 percent of the collection through Amazon.com and on the company’s website.

“We’d like to help other people with some of this money. There are people in our community who are hungry and don’t have enough to eat. We’ll also donate to the arts and other overlooked causes. In a way, it has been good to have time between finding the coins and being able to sell them in order to prepare and adjust. It’s given us an opportunity to think about how to give back,” said the couple.

Kagin and his colleague David McCarthy, senior numismatist, and researcher at Kagin’s, met with the couple last April, two months after the hoard was found.

When McCarthy and Kagin told the couple that their bonanza will be in the annals of numismatic stories for quite some time, the couple said, “It would have been quite a pity not to share the magnitude of our find. We want to keep the story of these coins intact for posterity.”


 

Categories
Historic

Scottish Farmer Discovers 5,000-Year-Old Lost City


Scottish Farmer Discovers 5,000-Year-Old Lost City

Scotland is full of vivid, complex history, as is the case for other European compatriots. And no, it’s not all the violent headlines that Braveheart sees — though there is a great deal of war in the country’s rearview mirror.


Nonetheless, not so long ago, a farmer discovered something amazing about ancient Scotland buried in the sand dunes of one of the northernmost islands of the country The kicker? He found this amazing discovery behind something unbelievably ordinary…

Around 1850 a Scottish farmer passed through the sand dunes of the western shore of the island of Orkney. There he pushed a rock aside and discovered something that had been hidden for thousands of years.

At first, he saw what looked like a simple hole, but when he peered inside, he couldn’t believe his eyes: it was a passageway that appeared to be a part of an entire labyrinth of rooms and corridors. An entire ancient city was hidden behind an ordinary slab of stone that whole time!

 

The settlement, it turned out, was the remains of Skara Brae, a neolithic city. Researchers believed that the ancient settlement might’ve been over 5,000 years old, making it more ancient than even the Egyptian pyramids.

Luckily, because the city had been covered by the sand dunes, it remained preserved for centuries until the farmer found it, untouched by other humans and hidden from the wear and tear of the passage of time.


Researchers believed that this was one of the oldest permanent settlements in Great Britain.

Each house had been sunk into middens, mounds of waste used to stabilize the structure and insulate those insides from Scotland’s brutal climate.


Though only eight houses now remain, it is believed the settlement was once much larger.

Researchers estimated this ancient lost city could have been home to between 50 and 100 people.

All of the houses were connected using a tunnel system, but those tunnels could be closed off and separated with large, sliding stone doors.

Early citizens would then be able to travel throughout the city, but close off their homes for privacy when they needed to.

Each hut contained multiple bedding areas; in most of the huts, researchers discovered, one of the bedding areas was typically larger than the others. These rooms were presumably reserved for the heads of the house—kind of like ancient master bedrooms.


The houses also contained a waterproof storage bin. Researchers believed this could’ve been an indication that these early people stored fresh fish in the huts. If that was the case, fish was likely their main source of food.

There are still questions to be answered about this hidden city and its people. Nevertheless, there is so much we can learn from ancient cities like this.


For many years, archaeologists thought that every important Egyptian discovery was already found. But that all changed recently.

 

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Historic

World’s Oldest Toy Car – Could This 5,000-Year-Old Discovery Be The Earliest Evidence Of The Wheel?


World’s Oldest Toy Car – Could This 5,000-Year-Old Discovery Be The Earliest Evidence Of The Wheel?

Many gearheads grew up playing with toy cars. Loyalties to Hot Wheels or Matchbox were as divisive as those between Ford and Chevy are today.


But kids have been fascinated by wheels since long before these companies—or even the car itself—existed.

An archeological dig in Turkey has revealed that our fascination with toy wheels goes back at least 5,000 years, reports the International Business Times.

A toy chariot dating back 5,000 years – which archaeologists believe may be the world’s oldest ‘toy car’ – has been discovered in Turkey.

 

The little chair on wheels, made from earthenware, was found during an excavation of the ancient city of Sogmatar, in the south-east of the country.

Sogmatar is believed to have been the home of Moses when he had run away from the Pharaoh.


A toy chariot dating back 5,000 years – which archaeologists believe may be the world’s oldest ‘toy car’ – has been discovered in Turkey
The little chair on wheels, made from earthenware, was found during an excavation of the ancient city of Sogmatar, in the south-east of the country
The digs have uncovered a number of tombs, including the ones the toys were found, which had provided a fascinating insight into how ancient civilizations lived

Digs in the city have uncovered a number of tombs, including the child’s grave the mini-chariot was found, which have provided a fascinating insight into how ancient civilizations lived.

In total, 45 tombs have been opened, including three that have remained untouched since the Roman era.


A 4,000-year-old baby’s rattle dug up in the city of Kultepe in the central Anatolian province of Kayseri in 2014 was at that time hailed as the world’s oldest toy.

Sogmatar Excavation Head and Sanliurfa Museum Manager Celal Uludag said that Sogmatar was one of the most important excavations in the area.

He added: ‘The excavation in this area continues with the permission of the ministry. In the necropolis part, in a tomb room, we found a toy carriage which belongs to the Bronze Age and believed to have been made for the children of kings or the leaders.

‘This finding is very important for us as shows the aesthetic and cultural understanding of the period.

‘The item will be exhibited in the biggest museum complex of Turkey, the Sanliurfa Archaeology Museum. We believe that we are going to find even more important things in the excavation.’


 

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Historic

A 14,000-year-old puppy, whose perfectly preserved body was found in Russia, munched on a woolly rhino for its last meal


A 14,000-year-old puppy, whose perfectly preserved body was found in Russia, munched on a woolly rhino for its last meal

Russian scientists in 2011 found a perfectly preserved Frozen Aged puppy in Siberia. Recently, while examining the 14,000-year-old wolf-dog’s stomach contents, researchers were stunned to find evidence of what could be one of the last woolly rhinos on Earth still in its prehistoric bowels.

The gritted teeth of a 14,000-year-old dog discovered in Tumut, Siberia in 2011.


“It’s completely unheard of,” professor of evolutionary genetics Love Dalen said. “I’m not aware of any frozen Ice Age carnivore where they have found pieces of tissue inside.”

Scientists originally found the furry canine at a dig site in Tumat, Siberia, and shortly afterward found a piece of yellow-haired tissue inside its stomach.

Experts initially believed that the tissue belonged to a cave lion, but after sharing the evidence with a resourceful team in Sweden, learned otherwise.

 

“We have a reference database and mitochondrial DNA from all mammals, so we checked the sequence data against that and the results that came back — it was an almost perfect match for woolly rhinoceros,” Dalen explained.

The 14,000-year-old wolf-dog is just one of a few perfectly preserved canine specimens found in the Siberian permafrost over the last decade.

Dalen works at the Centre for Paleogenetics, which is a joint venture between Stockholm University and the Swedish Museum of Natural History, so his team had access to both highly-detailed DNA databases and radiocarbon dating.


After Dalen and his colleagues were able to assess with the overwhelming likelihood that this half-digested tissue belonged to a woolly rhinoceros, they then radiocarbon dated it at around 14,400 years old.

“This puppy, we know already, has been dated to roughly 14,000 years ago,” said Dalen. “We also know that the woolly rhinoceros goes extinct 14,000 years ago. So, potentially, this puppy has eaten one of the last remaining woolly rhinos.”

The tissue of the woolly rhino.


Modern research has shown that the woolly mammoth’s extinction was partly due to severe climate change. As for how this lucky puppy got its paws on such a specimen, which is the same size as a modern-day white rhino that weighs nearly 8,000 pounds and stands six feet tall, remains largely unclear.

Indeed, Edana Lord, a Ph.D. student who co-authored a research paper studying the woolly rhino’s road to extinction, asserted that due to the rhino’s size it is impossible that the puppy killed the animal itself.

Additionally, experts were surprised to see that the rhino was left mostly undigested in the puppy’s stomach, leading Dalen to conclude that “this puppy must have died very shortly after eating the rhino.”

“We don’t know if it was a wolf, but if it was a wolf cub, maybe it came across a baby rhino that was dead,” Dalen hypothesized. “Or the (adult) wolf ate the baby rhino. Maybe as they were eating it, the mother rhino had her revenge.”

A reconstruction of a woolly rhino using the remains of one found in the Siberian permafrost.

This wolf-pup is just one of a few amazing prehistoric canines specimens to be found in the last decade. In 2016, a miner in the Yukon region of Canada found a mummified 50,000-year-old wolf pup alongside a prehistoric caribou.


Then, in 2019, researchers found an 18,000-year-old wolf-dog hybrid perfectly preserved in the Siberian permafrost. They have since named that specimen “Dogor.”

Ultimately, researchers hope that this latest find can shed some more light on the last days of the woolly rhino — which are still being debated millennia later.

 

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Historic

5,500-Year-Old Sumerian Star Map Recorded the Impact of a Massive Asteroid


5,500-Year-Old Sumerian Star Map Recorded the Impact of a Massive Asteroid

For more than 150 years scientists have tried to solve the mystery of a notorious cuneiform clay tablet that reveals that in the past the impact case of so-called Köfel was detected. The circular stone-cast tablet was discovered in the late 1800s from the 650 BC King Ashurbanipal‘s underground library in Nineveh, Iraq.


Data processing, which was long believed to be an Assyrian tablet, mirrored the sky over Mesopotamia in 3,300 BC and proved to be much more ancient Sumerian origin. The tablet is the first astronomical instrument, the “Astrolabe.”  It consists of a segmented, disk-shaped star chart with marked units of angle measure inscribed upon the rim.

Unfortunately, considerable parts of the planisphere on this tablet are missing (approximately 40%), damage which dates to the sacking of Nineveh. The reverse of the tablet is not inscribed.

Still, under study by modern scholars, the cuneiform tablet in the British Museum collection No K8538 (known as “the Planisphere”) provides extraordinary proof for the existence of sophisticated Sumerian astronomy. In 2008 two authors, Alan Bond and Mark Hempsell published a book about the tablet called “A Sumerian Observation of the Kofels’ Impact Event”.

 

Raising a storm in archaeological circles, they re-translated the cuneiform text and assert the tablet records an ancient asteroid strike, the Köfels’ Impact, which struck Austria sometime around 3,100 BC. The giant landslide centered at Köfels in Austria is 500m thick and five kilometers in diameter and has long been a mystery since geologists first looked at it in the 19th century.

The conclusion drawn by research in the middle 20th century was that it must be due to a very large meteor impact because of the evidence of crushing pressures and explosions. But this view lost favor as a much better understanding of impact sites developed in the late 20th century.


In the case of Köfels there is no crater, so to modern eyes it does not look as an impact site should look. However, the evidence that puzzled the earlier researchers remains unexplained by the view that it is just another landslide.

So what is the connection between the sophisticated Sumerian star chart discovered in the underground library in Nineveh and mysterious impact that took place in Austria?


Examination of the clay tablet reveals that it is an astronomical work as it has drawings of constellations on it and the text has known constellation names. It has attracted a lot of attention but in over a hundred years nobody has come up with a convincing explanation as to what it is.

With modern computer programs that can simulate trajectories and reconstruct the night sky thousands of years ago, the researchers have established what the Planisphere tablet refers to. It is a copy of the night notebook of a Sumerian astronomer as he records the events in the sky before dawn on the 29 June 3,123 BC (Julian calendar).

Half the tablet records planet positions and cloud cover, the same as any other night, but the other half of the tablet records an object large enough for its shape to be noted even though it is still in space.

The astronomers made an accurate note of its trajectory relative to the stars, which to an error better than one degree is consistent with an impact at Köfels.

The observation suggests the asteroid is over a kilometer in diameter and the original orbit about the Sun was an Aten type, a class of asteroid that orbit close to the earth, that is resonant with the Earth’s orbit.


This trajectory explains why there is no crater at Köfels. The in coming angle was very low (six degrees) and means the asteroid clipped a mountain called Gamskogel above the town of Längenfeld, 11 kilometers from Köfels, and this caused the asteroid to explode before it reached its final impact point. As it traveled down the valley it became a fireball, around five kilometers in diameter (the size of the landslide).

Around 700 BC an Assyrian scribe in the Royal Place at Nineveh made a copy of one of the most important documents in the royal collection. Two and a half thousand years later it was found by Henry Layard in the remains of the palace library. It ended up in the British Museum’s cuneiform clay tablet collection as catalogue No. K8538 (also called “the Planisphere”), where it has puzzled scholars for over a hundred and fifty years.


In this monograph, Bond and Hempsell provide the first comprehensive translation of the tablet, showing it to be a contemporary Sumerian observation of an Aten asteroid over a kilometer in diameter that impacted Köfels in Austria in the early morning of 29th June 3123 BC.

When it hit Köfels it created enormous pressures that pulverized the rock and caused the landslide but because it was no longer a solid object it did not create a classic impact crater.

Mark Hempsell, discussing the Köfels event, said: “Another conclusion can be made from the trajectory. The back plume from the explosion (the mushroom cloud) would be bent over the Mediterranean Sea re-entering the atmosphere over the Levant, Sinai, and Northern Egypt.

“The ground heating though very short would be enough to ignite any flammable material – including human hair and clothes. It is probable more people died under the plume than in the Alps due to the impact blast.”


In other words, the remarkable ancient star map shows that the Sumerians made an observation of an Aten asteroid over a kilometer in diameter that impacted Köfels in Austria in the early morning of 29th June 3123 BC.

 

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Historic

The Yakhchāl: 2,400-Year-old Persian “refrigerator” that stored food in the desert


The Yakhchāl: 2,400-Year-old Persian “refrigerator” that stored food in the desert

Looking up inside a Yakhchal

The refrigerator is one of the most indispensable appliances of modern life. it’s almost unthinkable that a person can live with one or least have other means to keep their food refrigerated. so, imagine what if life was like during ancient times when electricity was still unheard of.


Ancients were wiser than some today belief. They had no rockets or electronics, no indisputable proof of such inventions was discovered, but they developed the technology that we don’t usually associate with the ancient world.

The yakhchal (meaning ice pit) was a type of ancient refrigerator built in the deserts of Persia (now Iran), which was made without electricity, modern coolants, or most elements of modern refrigerators. It demonstrates the ability of humans to find solutions to problems with any materials or technology they have available.

This approach to making refrigerators was mastered by Persian engineers around 400 B.C., though it is possible that people were making them before that.

 

Yakhchals are fairly simple to make so that even those who were relatively poor could afford them. Most yakhchals were domed structures with an underground square-shaped containment area.

Yakhchal in Yazd, Iran

After the containment area was dug and the dome was erected, a type of mortar made from clay, sand, ash, goat hair, and lime called sarooj was used to make it waterproof.


The collection area for the water needed to be deep enough to keep cool and the material out of which the yakhchal was made needed to be enough of an insulator to keep out heat.

Water was brought to the yakhchal either by directly transporting ice from nearby mountains or diverting water from an aqueduct into the yakhchal using underground water channels called qanats.


Adjacent to some yakhchals, an east-west oriented wall would be built on the south side of the refrigerator and water would be brought into the yakhchal from the north side of the wall. The reason for this was to keep the water cool during the middle of the day as it entered the yakhchal.

Another device used to keep the yakhchal cool is a badgir, a type of wind-catching mechanism which would catch the breeze and divert it down into the yakhchal.

As the air descended, it would be cooled by the ice as well as the cool air accompanying the water in the qanat. Alternatively, the badgir could be used to cause warm air to rise and cool air to replace it. This mechanism is still used in many desert towns in modern Iran.

A diagram showing how the yakhchal kept the inside refrigerated

Once in the yakhchal, the water would freeze overnight. This process could be expedited through having ice, transported from the mountains, already present in the yakhchal to act as a seed.

Once the water was frozen, it would be cut up into blocks so that the water could be easily transported out of the yakhchal for drinking and other purposes. In addition to storing drinking water, the yakhchal was also used to keep food such as fruit, dairy products, and probably meat cool so that it would last longer.


Many Yakhchals in Iran, Afghanistan, and other parts of west and central Asia are still standing even after thousands of years. They represent the remnants of ancient Persia and are a part of the cultural heritage of Iran.

A yakhchal in the Dasht-e-Kavir desert, Iran

In addition to being historically interesting, yakhchals have also been suggested as an inexpensive and sustainable way for modern Iranians and other central Asian communities to have refrigeration without requiring the use of electricity.


Theoretically, the process used to make yakhchals could also be replicated and used in other regions with climates similar to desert areas in Iran and Central Asia such as the American Southwest or parts of northwestern China. In this way, the revival of ancient technology could help modern people around the world live more sustainably and still have modern conveniences, specifically refrigeration.

Modern westerners tend to assume that conveniences like refrigeration require advanced technologies such as electricity and the ability to produce powerful coolant chemicals, but it turns out that refrigeration can be produced using surprisingly simple methods.

Inside ice house, Meybod Iran
Ancient Persian Air Conditioning

 

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Historic

When the Smithsonian discovered an ancient Egyptian colony in the Grand Canyon


When the Smithsonian discovered an ancient Egyptian colony in the Grand Canyon

At 277 miles (445 kilometers) long, up to 18 miles (28 kilometers) wide, and 1 mile (1.6 kilometers) deep, the Grand Canyon is one of the most beautiful and awe-inspiring places in the United States.

The Zoroaster and Brahma Temples are seen in the distance from the South Kaibab Trail in the Grand Canyon National Park


The Hopi Indians believe it is the gateway to the afterlife. Its sheer immensity and mystery attracted more than 6 million visitors in 2016.

But what those people probably don’t know is that the Grand Canyon might once have been the home of an entire underground civilization.

But where are they now? And why did they abandon the canyon? Hosts Matt Frederick, Ben Bowlin, and Noel Brown jump straight into the folklore, the legends, and of course, the conspiracies to find out what really happened to the Grand Canyon’s Lost Civilization in this episode of Stuff They Don’t Want You To Know.

 

In the article, a cross-legged idol resembling Buddha is described along with a large tomb filled with mummified humans: a veritable mash-up of Egyptian and East Asian cultures.

It all started in 1909 when purported Smithsonian Institution explorer G.E. Kincaid discovered strange caverns during an expedition directed by Smithsonian anthropologist S.A. Jordan. The entrance to the cavern was nearly inaccessible, but Kincaid was able to get in to make an incredible discovery.

The enormous caves, which radiated out from a center cavern-like spokes on a wheel, were full of artifacts, including statues, copper weapons, even granaries full of seeds. Its size indicated that 50,000 people could live inside comfortably.


But even more amazingly, the artifacts didn’t match up to anything in the known record. Rather than appearing to be of Native American origin, as one might expect, the objects had distinct Egyptian or Tibetan designs. Could there actually have been an entire civilization of Egyptians living there? If so, how did they get there?

The story caused a huge sensation when it broke in the Arizona Gazette in 1909, but was soon met with skepticism: The Smithsonian has no record of either of the scientists, nor their discoveries, and firmly quells any claims that Egyptian artifacts have been found in either North or South America.


And no one has been able to find these supposedly massive caves since. Was this some elaborate hoax, may be perpetrated by the Gazette to sell papers?

That’s certainly a possibility, but it doesn’t fly for many conspiracy theorists. Some argue that the Smithsonian Institution has purposely wiped Kincaid and Jordan from their records and actively destroyed artifacts that don’t agree with the “status quo story” of human history.

Others think the caves hold a passage to the fourth dimension, where the reptilians (yep!) who have secretly run the world for thousands of years emerge into our world. Still, others believe the area is top-secret and closely guarded, like Area 51.

So is this series of caverns proof of a long-lost, possibly Egyptian civilization that’s simply being covered up by the Smithsonian, or is it a passageway into this dimension for our reptilian overlords? One thing is for sure.