Archaeology
Study suggests that nature played a role in the origins of the Great Sphinx
The Great Sphinx of Giza is a limestone statue of a reclining sphinx, a mythical creature characterised by the combination of a human head and a lion’s body.
The Great Sphinx is the oldest known monumental sculpture in Egypt, standing on the Giza Plateau on the west bank of the Nile in Giza,
Based on archaeological evidence, the construction of the Great Sphinx dates back to approximately 2500 BC during the reign of Pharaoh Khafre, who oversaw the construction of the Second Pyramid at Giza.
Many mysteries enshroud the Great Sphinx, including its original appearance and the symbolism it was intended to convey. Surprisingly, there has been relatively little focus on the study of what the landscape was like before its creation and how the natural environment may have influenced its design.
In a new study by researchers from New York University (NYU), scientists have replicated conditions that existed 4,500 years ago to demonstrate how wind moved against rock formations that could have shaped the monument.
“Our findings offer a possible ‘origin story’ for how Sphinx-like formations can come about from erosion,” explains Leif Ristroph, an associate professor at New York University’s Courant Institute of Mathematical Sciences and the senior author of the study, which has been accepted for publication in the journal Physical Review Fluids. “Our laboratory experiments showed that surprisingly Sphinx-like shapes can, in fact, come from materials being eroded by fast flows.”
The study centred on duplicating yardangs, distinctive rock formations found in deserts formed by the accumulation of wind-blown dust and sand. According to the researchers, there is the possibility that the Great Sphinx may have initially started as a natural yardang, later enhanced and sculpted by humans into the iconic monument we know today.
Natural Yardangs – Image Credit : Shutterstock
To support this theory, the study authors from NYU’s Applied Mathematics Laboratory worked with soft clay mounds containing embedded less erodible material, simulating the landscape of northeastern Egypt where the Great Sphinx is located.
They then subjected these formations to a rapid-flowing water stream, mimicking the erosive action of wind, which gradually carved and reshaped them, eventually leading to the emergence of a structure resembling the Great Sphinx.
The harder or more resistant material within these mounds took on the role of forming the “head” of the lion, while various other features, including a sculpted “neck,” “paws” resting on the ground in front, and an arched “back,” began to take shape.
“Our results provide a simple origin theory for how Sphinx-like formations can come about from erosion,” observes Ristroph. “There are, in fact, yardangs in existence today that look like seated or lying animals, lending support to our conclusions.”
Header Image Credit : Shutterstock
A study of archaeological sites in Winchester, England, has revealed that red squirrels served as a host for Mycobacterium leprae strains that caused leprosy in people.
Leprosy is one of the oldest recorded diseases in human history and is still prevalent to this day in Asia, Africa, and South America.
It has previously been suggested that the extensive trade of red squirrel fur, greatly valued during medieval times, could have contributed to the leprosy epidemic in medieval Europe.
The results of the study, published in the journal Current Biology, studied 25 human and 12 squirrel samples from two medieval sites in Winchester.
During this period, the city had strong connections to the fur trade and housed the leprosarium, a hospital that treated people with Hansen’s disease (leprosy) caused by Mycobacterium leprae bacteria.
Verena Schuenemann of the University of Basel in Switzerland, said: “With our genetic analysis we were able to identify red squirrels as the first ancient animal host of leprosy.”
The study found that the medieval red squirrel strains were more closely related to human strains in Winchester, rather than to modern squirrel strains from England – suggesting an independent circulation of Mycobacterium leprae strains.
“Our findings highlight the importance of involving archaeological material, in particular animal remains, into studying the long-term zoonotic potential of this disease, as only a direct comparison of ancient human and animal strains allows reconstructions of potential transmission events across time,” says Sarah Inskip of the University of Leicester, UK, a co-author on the study.
Header Image Credit : Shutterstock
Sources : Current Biology, Urban, Blom, and Avanzi et al.: “Ancient Mycobacterium leprae genome reveals medieval English red squirrels as animal leprosy host.” https://www.cell.com/current-biology/fulltext/S0960-9822(24)00446-9
This content was originally published on www.heritagedaily.com – © 2023 – HeritageDaily
Archaeologists from the Uncovering Roman Carlisle project have discovered a rare lump of Tyrian purple at the grounds of the Carlisle Cricket Club in Carlisle, England.
The project is a community supported excavation by Wardell Armstrong, focusing on uncovering a Roman bath house found in 2017.
The bath house is located near the Roman fort of Uxelodunum (meaning “high fort”), also known as Petriana, in the Carlisle district of Stanwix.
Uxelodunum was constructed to control the territories west of present-day Carlisle and an important crossing on the River Eden. The fort was garrisoned by the Ala Petriana, a 1,000-strong cavalry unit, whose members were all granted Roman citizenship for valour on the field.
Previous excavations at the bath house have discovered colossal sandstone heads depicting Roman gods, in addition to engraved gems known as intaglios, figurines, animal bones, and imperial-stamped tiles.
During the latest season of excavations, archaeologists found a mysterious lump of a soft purple substance. The substance was tested by researchers from Newcastle University, revealing that it contained levels of Bromine and beeswax.
According to the researchers, the substance is Tyrian purple, a coloured dye associated with the Imperial Court in the Roman Empire. Tyrian purple is secreted by several species of predatory sea snails in the family Muricidae, rock snails originally known by the name Murex.
Frank Giecco, Technical Director at Wardell Armstrong, said: “For millennia, Tyrian Purple was the world’s most expensive and sought after colour. It’s presence in Carlisle combined with other evidence from the excavation all strengthens the hypothesis that the building was in some way associated with the Imperial Court of the Emperor Septimius Severus which was located in York and possibly relates to an Imperial visit to Carlisle.”
“It’s the only example we know of in Northern Europe – possibly the only example of a solid sample of the pigment in the form of unused paint pigment anywhere in the Roman Empire. Examples have been found of it in wall paintings (like in Pompeii) and some high status painted coffins from the Roman province of Egypt,” said Giecco.
Header Image Credit : Wardell Armstrong
Sources : Wardell Armstrong
This content was originally published on www.heritagedaily.com – © 2023 – HeritageDaily
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