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Seaweed has been a superfood since prehistoric times

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Seaweed is often regarded as a superfood, celebrated for its health advantages and sustainability. There are approximately 10,000 different species of seaweeds in the world, however only 145 species are eaten today.

According to a new study, our European forebears were already consuming this nutrient-rich plant for thousands of years into prehistory.

Researchers from the University of York and the University of Glasgow, claim to have found “definitive” archaeological evidence that seaweeds and freshwater plants have been consumed from as early as the Mesolithic, through the Neolithic transition, and into the Early Middle Ages.

According to the study, published in Nature Communications, evidence of seaweed being a food source is rarely recorded, and is normally considered for non-edible uses such as fuel or fertiliser.

A team of archaeologists conducted an analysis of biomarkers derived from dental calculus obtained from 74 individuals across 28 archaeological sites, spanning from northern Scotland to southern Spain. Their investigation unveiled “direct evidence for widespread consumption of seaweed and submerged aquatic and freshwater plants.”

Samples with surviving biomolecular evidence revealed consumption of red, green or brown seaweeds, or freshwater aquatic plants, with one sample from Orkney also containing evidence for a Brassica, most likely sea kale.

Karen Hardy, Professor of Prehistoric Archaeology at the University of Glasgow said: “Today, seaweed and freshwater aquatic plants are virtually absent from traditional, western diets and their marginalisation as they gradually changed from food to famine resources and animal fodder, probably occurred over a long period of time, as has also been detected elsewhere with some plants.

“Our study also highlights the potential for rediscovery of alternative, local, sustainable food resources that may contribute to addressing the negative health and environmental effects of over-dependence on a small number of mass-produced agricultural products that is a dominant feature of much of today’s western diet, and indeed the global long-distance food supply more generally.”

University of York

https://doi.org/10.1038/s41467-023-41671-2

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Archaeology

Archaeologists excavate medieval timber hall

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Archaeologists from the University of York have returned to Skipsea in East Yorkshire, England, to excavate the remains of a medieval timber hall.

Recent excavations unearthed a timber hall measuring 5 metres wide by 16 metres long, which was surrounded by a large ditched enclosure.

The size and shape of the hall is marked by post holes, which the team plan to excavate further to provide new insights into the hall’s purpose and setting in the surrounding landscape.

The hall sits adjacent to a 13-meter-high mound, once presumed to be a motte and bailey castle. However, carbon dating has since revealed its age to be 1,500 years prior to the Norman Conquest era from during the Iron Age.

Dr Jim Leary, from the University of York’s Department of Archaeology, said: “The unearthing of timber buildings dating to the period between the collapse of the Roman Empire and the arrival of the Vikings, a time often referred to as the Dark Ages, is an incredibly rare and significant find.

“The discovery at Skipsea is particularly interesting because we know that the area was in the hands of the last Anglo-Saxon King of England, Harald Godwinson, and then later, after the Norman Conquest of 1066, it became the estate centre of the Lords of Holderness.”

Skipsea was once home to three freshwater lakes, Skipsea Bail Mere, Skipsea Low Mere, and Skipsea Withow Mere, linked to the River Hull through a network of tributaries. These lakes (long-vanished), began 10,000 years ago during the Mesolithic period, and continued into the medieval period.

The lakes were a constant draw to population groups throughout history, which has provided archaeologists with Mesolithic stone tools, animal remains, bone harpoons, and Bronze Age buildings and trackways.

Header Image Credit : University of York

Sources : University of York

This content was originally published on www.heritagedaily.com – © 2023 – HeritageDaily

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Archaeology

Archaeologists find traces of Gloucester’s medieval castle

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Archaeologists from Cotswold Archaeology have uncovered traces of Gloucester’s medieval castle in Gloucester, England.

The castle was first constructed during the Norman period as a simple motte and bailey. Over the centuries, various additions and periods of reconstruction extended the footprint of the castle, which by the 13th century became a royal residence for nobility and English kings.

Between the 15th century and 17th century, the castle went into decline and much of the stonework from the fortifications were used to construct roads and buildings within the city centre, leaving only the keep which was used as a gaol (prison).

In time, the keep was considered to be unsuitable and its demolition began in 1787, leaving no visible remains of the castle.

Image Credit : Cotswold Archaeology

During development works in the south-west of Gloucester city centre, archaeologists from Cotswold Archaeology have uncovered traces of the castle beneath the basketball court of the former HMP Gloucester.

A number of trenches revealed medieval structural remains that archaeologists have interpreted as forming part of a masonry causeway or bridge structure. This provided access to the castle across its inner defensive ditch and continued north-east onto Castle Lane.

Excavations also found subsequent demolition and robbing of stonework, evidenced by the infilled castle ditch, and comprised cultivation soils of the Castle Gardens, which occupied this area from the later 18th century through to the mid-19th century.

In addition, a stretch of Post-medieval wall relating to the gardens was identified, which corresponds to a boundary shown on early and mid-19th century maps.

According to the archaeologists: “The results highlight that significant archaeology continues to survive at a relatively shallow depth, enabling us to trace historic land use and landscape change within this part of the city across many centuries.”

Header Image Credit : Cotswold Archaeology

Sources : Cotswold Archaeology

This content was originally published on www.heritagedaily.com – © 2023 – HeritageDaily

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