Unlocking the Secrets of Laos’ Ancient Giant Stone Jars: Recent Discoveries Revealed

Stone jars in Laos

Laos Pot Plains

Alvov/Shutterstock

Recent discoveries at the Plain of Jars in Laos have challenged our understanding of this ancient site, where at least 37 bodies have been unearthed from gigantic stone jars.

Spanning the remote Xieng Khouang Plateau, these enormous stone pots, some reaching heights of 3 meters and weighing several tons, have long been suspected to be linked to ancient burial practices.

Historical legends suggest that these jars were created for giants who brewed rice wine, according to Nick Skopal from James Cook University, Australia.

Findings from the 1930s hinted at a connection to the Iron Age (circa 500 B.C. to 500 A.D.), proposing that the jars may have played a role in cremation or the disposal of human remains. More recent studies have uncovered glass beads, burial artifacts, and cremated remains.

Recently, Skopal and his team excavated a jar measuring over 1.3 meters high and 2 meters wide near the town of Phonsavan, revealing the bones of 19 individuals, with teeth belonging to 37 people.

Radiocarbon dating indicates the remains date from the 9th to the 12th century AD, suggesting multiple burial events.

The arrangement of the bones indicates careful packing, with larger bones organized at the ends and many smaller bones likely missing due to decomposition.

This breakthrough is a key finding, as noted by Nigel Chan, also from James Cook University, who was not involved in the study. “This is the first investigation showing a definitive link to mortuary practices over the past century,” he stated.

Close to the larger jar were several smaller pots containing glass beads, suggesting a two-step burial process: initial storage in smaller jars followed by a transfer to the larger jars post-decomposition.

“Could these stone pots be part of rituals to honor ancestors or release their souls?” Skopal inquires. “DNA testing on the remains will reveal familial connections among these individuals.”

While the samples indicate when the jars were used, they do not ascertain the age of the jars themselves.

“Evidence indicates a significant activity around this site during the latter half of the first millennium AD,” Chan adds, while speculating that the jars may actually date back over 2000 years.

Although determining the jars’ age is challenging, Skopal noted their artifact dating aligns with the remains, supporting the theory that the jars were used for multiple generations. “The shift from an Iron Age context to a medieval cultural practice is becoming evident,” he states.

Excavated Stone Jar with Human Remains

Dr. Nicholas Skopal

According to Skopal, this practice has deep roots in ancestor worship, passed down through generations. However, variations exist among Laotian stone jars, with different customs observed across regions, such as upright jars in some areas and flat ones in others.

“It’s likely these jars were utilized by various cultural groups over extended periods,” suggests Tiatoshi Jamil of Nagaland University, India.

The excavation team also uncovered iron tools, pottery, copper bells, and glass beads inside the jars, revealing trade connections as far as southern India and Mesopotamia.

This is not surprising, as around 1000 AD was a flourishing time in East and Southeast Asia, highlighted by the Song Dynasty, Khmer Empire, and the pagan kingdoms of present-day Myanmar.

Marco Mitri is investigating similar stone jars at North Eastern Hill University in India. Archaeological findings in Northeast India indicate diverse cultural practices that resonate with these traditions.

Mitri theorizes that various Austro-Asian communities have practiced these funerary rituals for centuries, with modern parallels seen in groups like the Khasis in India, who still use stone boxes called cysts for bone deposits following cremation.

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Archaeologists Discover 2,500-Year-Old Honey in Bronze Jars Unearthed in Italy

Archaeologists have reexamined the 2,500-year-old remnants discovered in bronze containers at an underground shrine in Paestum, Italy, previously categorized as a mixture of wax, fat, and resin. Utilizing a multi-species approach, the researchers identified lipids, sugar degradation products, hexose sugars, and key royal jelly proteins.

Paestum Honey: (a) An underground shrine in Paestum, Italy. (b) One of the Hydrias showcased in 2019 alongside a Perspex box containing Ashmolean Museum residues. (c) A graphic representation of the arrangement of bronze artifacts within the shrine. (d) Samples extracted from the core of the residue. Image credit: Da Costa Carvalho et al. , doi: 10.1021/jacs.5c04888.

Honey played a crucial role in ancient societies.

Historical texts and depictions indicate that honey was utilized as an early sweetener in medicinal recipes, rituals, and cosmetics.

Within ancient Greek and Roman traditions, bees and honey were of significant religious and symbolic value.

Honey is thought to confer wisdom, with myths stating that Zeus was given honey in his infancy.

Discovering honey in archaeological residues offers direct chemical evidence of the collection, exploitation, and processing of bee products, illuminating early agricultural and subsistence strategies in various regions globally.

In 1954, excavations at an ancient Greek site in Pestum, southern Italy, dating back to around 520 BC, unveiled an underground shrine dedicated to an unknown deity. This shrine housed a bronze bottle and two amphoras encircling an empty iron bed.

The container was found to hold a paste-like residue with a distinct waxy aroma.

Archaeologists noted that the residue was initially a liquid or semi-liquid. Traces were discovered on the exterior of a vessel that had originally been sealed with a cork disk.

The excavation reports underscored the shrine’s sacredness, with the empty bed’s inaccessibility suggesting the presence of the deity.

Additionally, archaeologists identified the original contents of the bronze bottle as honey, a revered symbol believed to have originated from honeycomb, though only traces of beeswax persisted as a prominent element.

Subsequent laboratory analyses of samples with varying residues ruled out honey from the composition.

In 2019, when the residues from Paestum reached the Ashmolean Museum for display during the final evening of the Pompeii exhibition, it presented a fresh opportunity to reassess the biomolecular composition, leveraging recent advances in mass spectrometry technology.

Researchers from Oxford University, including Luciana da Costa Carvalho and James McCulla, analyzed the residue samples, determining their molecular composition through several modern analytical methods.

The analysis revealed that the ancient residues bore nearly identical chemical signatures to modern beeswax and honey, with elevated acidity levels indicative of changes due to prolonged storage.

The chemical profile of the residue appears to be more complex than that of pyrolyzed beeswax, hinting at the existence of honey or other substances.

Residues in contact with the bronze jar showed a mixture of sugars that had reacted with copper.

Hexose sugars, frequently identified in honey, were present in higher concentrations in the ancient residues compared to modern beeswax.

Proteins linked to Royal Jelly, known to be secreted by western honeybees, were also identified in the residues.

These findings suggest that the ancient material may indeed be remnants of ancient honey.

However, researchers have not entirely ruled out the presence of other bee products.

“The ancient residues are not simply traces of what people consumed and offered to the gods; they represent intricate chemical ecosystems,” remarked Dr. Da Costa Carvalho.

“Investigating these substances will unveil how they have evolved over time, paving the way for future studies on ancient microbial activities and their potential applications.”

A paper detailing the study’s findings was published today in the Journal of the American Chemical Society.

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Luciana da Costa Carvalho et al. Immortal symbol: evidence of honey in bronze jars from 530 to 510 BC. J. Am. Chemistry. Soc, published online on July 30th, 2025. doi:10.1021/jacs.5c04888

Source: www.sci.news