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Archaeologists explore submerged structures off the Le Cesine coastline

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A new research project led by the University of Salento is conducting an underwater and surface study of the Le Cesine coastline to explore submerged structures first identified in 2020.

Le Cesine is a 6 km nature reserve located in Italy between San Cataldo and San Foca. Previous studies using drones, ROVs, and a photogrammetric survey, revealed evidence of a submerged port and structures in the locality of Posto San Giovanni.

Archaeologists discovered the foundation of a pier measuring approximately 90 metres in length, situated 15 metres from the shoreline that followed an ancient bank at a depth of 3.5 metres.

The pier was built with large juxtaposed blocks, and possible bollards made from parallelepiped blocks with a cylinder-shaped side placed at rather regular intervals, but has since collapsed due to the disruptive force of wave motion.

Image Credit : University of Salento

According to the researchers: “This structure is similar to the submerged part of the large Hadrianic pier north of the wide bay of San Cataldo, to which it is also similar due to its impressive development and building technique, but it could also be older than that.”

On the same alignment further away from the shore are another cluster of blocks arranged in parallel and perpendicular lines.

The current project is conducting a detailed study to determine whether the two structures are associated, and further study a so-called “submerged church” which may actually be the remains of a lighthouse tower.

On the shoreline are also structures that the researchers are documenting, including a series of rock-cut storage pits, and further evidence of a building that preliminary dating suggests may be from the Roman Republican era.

In a press release published by the University of Salento: “The set of evidence at sea and on land, with the holistic approach of landscape archaeology, suggests precisely the existence of an important port complex.”



 

University of Salento

Header Image Credit : University of Salento

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Archaeology

Red squirrels spread leprosy during medieval period

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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

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Archaeology

Lump of Tyrian purple uncovered at Carlisle excavation

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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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