Connect with us

Archaeology

Study of faeces reveals the gut environment of ancient Japan

Published

on

Archaeologists have conducted a metagenomic analyses of coprolites excavated at the Torihama shell-mound site in Fukui Prefecture, Japan.

Excavations recovered over 400 individual coprolites, in which a sampling of 10 examples have dated the site to the Early Jōmon period. At the time, the Japanese archipelago was inhabited by the Jōmon culture, a hunter-gatherer population which reached a considerable degree of sedentism and cultural complexity.

The results of the study, published in the journal PLOS ONE by researchers from the National Institute of Genetics, the University of Tokyo, and the Wakasa History Museum, has revealed new insights into the lives and health of the Jōmon people living in Japan 7,000 to 5,500-years-ago.

Coprolites have the ability to preserve various genetic materials from the digestive tracts of ancient populations, including DNA from microbes and viruses. A metagenomic analysis of the sampled coprolites showed homology with known gut microbe, viruses, and food genomes typically found in the faeces of modern humans.

According to the study authors: “We detected reads derived from several types of phages and their host bacteria simultaneously, suggesting the coexistence of viruses and their hosts.”

Despite the age-related degradation of DNA in the coprolites, the researchers successfully identified genetic fragments of viruses, specifically homologous to human betaherpesvirus 5 and human adenovirus F.

“The study enables scientists to explore the co-evolution of bacteria and the viruses that infect them throughout history. This research enhances our understanding of the microbial and viral composition within the digestive systems of people from ancient times,” said the study authors.

Furthermore, the team discovered the reads of possible foods through genomic information, providing biological evidence for the dietary characteristics of the Jomon people.

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

Continue Reading

Archaeology

Archaeologists link biblical event to findings in the City of David

Published

on

By

Excavations led by the Israel Antiquities Authority, working in collaboration with Tel Aviv University and the Weizmann Institute of Science, have linked an event mentioned in the Bible to archaeological findings from the City of David.

The results of the excavation, published in the journal PNAS, challenges the accepted perceptions of the development of Jerusalem during the rule of the kings of Judah. In particular, the scope of Jerusalem during the reigns of David and Solomon and the period that followed.

The researchers have accurately dated several structures, including the city walls and royal construction projects, which are linked to Jerusalem’s growth to the west during the period of King Hezekiah around 2,700-years-ago.

The previous assumption was that the city expanded due to the arrival of refugees due to the Assyrian exile, however, the new findings now indicate that the city spread towards Mount Zion in the 9th century BC during the reign of King Jehoash, 100 years before the Assyrian exile period.

Prof. Yuval Gadot from the Department of Archeology at Tel Aviv University, said: “In light of this, the new research teaches us that the expansion of Jerusalem is a result of internal-Judean demographic growth and the establishment of political and economic systems.”

Excavations have also revealed that the wall of Jerusalem on the eastern slopes of the city of David is older than previously thought. It was thought that the wall in this area was built by Hezekiah, King of Judah, however, findings now indicate that it dates from the reign of King Uzziah.

King Uzziah is described in a passage in the bible that reads: “’And Uzziah built towers in Jerusalem… and strengthened them” (2 Chronicles 26:9).

According to Dr. Uziel: “Until now, many researchers have assumed that the wall was built by Hezekiah during his rebellion against Sennacherib (King of Assyria), in order to defend Jerusalem during the Assyrian siege. It is now apparent that the wall in the easter part of the City of David, was built earlier and as part of the construction of the city during the reign of King Uzziah.”

Header Image Credit : Leonardo Gurvitz, City of David Archives

Sources : IAA

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

Continue Reading

Archaeology

Ancient Pueblo used conch-shell trumpets for communication

Published

on

By

A new study, published in the journal Antiquity, suggests that the ancient Pueblo culture used conch-shell trumpets for communication.

The focus of the study is the site of the Chaco Canyon in north-west New Mexico. Located in Chaco Culture National Historic Park, Chaco Canyon contains numerous small dwellings and multi-story buildings known as great houses.

Based on the density of structures, archaeologists speculate that the site was once a bustling metropolis, inhabited by as many as 2,300 people during its height from AD 1050 to 1130.

Conch-shell trumpets have been found in burial contexts at Chaco Canyon, which today are used in contemporary Pueblo ritual practices.

Using a Soundshed Analysis model, archaeologists have digitally modelled the sound of a conch-shell trumpet being sounded at a great house in relation to other features in the landscape. Soundshed Analysis calculates the distance a sound can travel from a point, taking into account both the type of sound and environmental conditions such as elevation and ambient noise.

“Chaco Canyon is surrounded by over one hundred understudied great house communities”, says lead author Professor Ruth Van Dyke from Binghamton University. “We sought to determine if extra-canyon great house communities demonstrated relationships similar to Chaco Canyon between landscape, community layout, and sound.”

In this case, the team modelled the sound of a conch from great houses at five Chacoan communities to determine whether it would reach all habitation sites within the community.

They found that if somebody blew a conch-shell trumpet from the great house at the centre of all five Chacoan communities, the sound would have reached almost all of the surrounding settlements.

This suggests that ancient Puebloans may have managed their land-use and community structures around the sound of trumpets. The sound was potentially used to signal communal activities, such as religious ceremonies.

“This is not unlike the idea of a medieval church bell calling a community to mass”, states Professor Van Dyke.

It also indicates how Chacoan heritage sites should be managed going forward.

“Soundscapes were meaningful dimensions of past experiences, landscapes, and environments and are important facets of social interaction in the ancient world,” observes Professor Van Dyke. “Management of archaeological and heritage sites should incorporate consideration of the auditory environment.”

Header Image Credit : Shutterstock

Sources : Antiquity | Seashells and sound waves: modelling soundscapes in Chacoan great-house communities – Ruth M. Van Dyke, Kristy E. Primeau, Kellam Throgmorton & David E. Witt. https://doi.org/10.15184/aqy.2024.54

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

Continue Reading

Trending

Generated by Feedzy