• 🏺 CAVES, COMMUNITIES AND CULTURAL MEMORY⠀
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An archaeological site doesn’t stop changing once the excavation ends.⠀
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This week, we look at Ban Chiang through the memories of the people who live there, and at Sri Mahosot, where an ancient landscape remains part of contemporary worship and community identity.⠀
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Also this week:⠀
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🇵🇭 Rescue archaeology at a cave in Romblon⠀
🇮🇩 A possible Kadiri-era site in East Java⠀
🇻🇳 A new forest-and-heritage trail at Mỹ Sơn⠀
🇰🇭 Angkorian Buddhist sculpture⠀
📢 SPAFACON 2027 call for abstracts⠀
💼 New archaeology and heritage jobs⠀
💰 Grants, fellowships and PhD opportunities⠀
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…plus archaeology and heritage stories from across Southeast Asia.⠀
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Caves, Communities and Cultural Memory⠀
Southeast Asian Archaeology Newsletter | 21–27 September 2026⠀
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🔗 Link in bio / southeastasianarchaeology.substack.com⠀
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#Archaeology #SoutheastAsianArchaeology #SoutheastAsia
  • One river in northern Vietnam has yielded a remarkable record of more than 2,000 years of boatbuilding.

From the bed of the Kinh Thầy River at Cầu Bình, researchers documented 23 boat remains, including eight virtually complete logboat hulls and fragments of bows, sterns and planks. Radiocarbon dates place most of them between roughly 700 BCE and 1500 CE. 

Many hulls showed signs of sophisticated work beyond simply hollowing out a tree trunk. The hulls could be widened during manufacture, while wooden thwarts or bulkheads helped maintain their expanded shape. Some boats also carried additional boards along their upper edges, attached through holes with fibre lashings.

Around 2,000 years ago, during the late Đông Sơn and Han periods, several examples reveal another solution: mortise-and-tenon joints locked with wooden dowels. One boat even combined these joints with lashing holes. In later centuries, other Cầu Bình boats were built without this particular system.

This shows that over 2,200 years, boatbuilders used, combined and abandoned different solutions while continuing a long tradition of wooden river craft in the northern Red River Delta.

Reference
Bellwood, Nguyễn, , Lê, Hung, & Calo. 2026. “A 2,200-Year Logboat Sequence (700 BCE–1500 CE) from the Northern Red River Delta, Vietnam.” International Journal of Nautical Archaeology.
DOI: 10.1080/10572414.2026.2717219

#VietnamArchaeology #SoutheastAsianArchaeology #MaritimeArchaeology #NauticalArchaeology #RedRiverDelta
  • 🏺 Palaces, Pots and Porcelain⠀
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Xin Chào! 🇻🇳 It’s a very Vietnam-heavy week in Southeast Asian archaeology: imperial palaces, ceremonial architecture, ancient brick tombs, early tile kilns, Cham heritage and the return of a Đông Sơn bronze drum.⠀
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🔬 New research from Malaysia finds molecular evidence for dairy processing around 3,000 years ago.⠀
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🏺 And in the Philippines, some very unusual earthenware decorated with fragments of Chinese porcelain tells a story about Manila, material culture and the early colonial encounter.⠀
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There’s plenty more from around Southeast Asia in this week’s newsletter.⠀
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Palaces, Pots and Porcelain — read via the link in bio.⠀
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#Archaeology #SoutheastAsianArchaeology #VietnamArchaeology #MalaysiaArchaeology #PhilippineArchaeology
  • A 4.38-metre-long wooden rudder from the west coast of Sumatra is providing a rare glimpse of Southeast Asian seafaring around 1,300 years ago.

The rudder was recovered at the Bongal Site in Central Tapanuli, North Sumatra. Today the site lies inland, but geomorphological research suggests that in the 7th–8th centuries CE it was part of a shallow bay or estuarine environment.

The quarter rudder was carved from a single log and measures 4.38 metres long. Radiocarbon dating of the wood produced a calibrated date of 656–687 CE, making it the earliest securely dated rudder currently known from Southeast Asia.

Researchers also documented hull planks with raised wooden lugs, dowels and surviving palm-fibre ropes. These suggest that parts of these boats were pegged and tied together—a construction method archaeologists call the Southeast Asian lashed-lug tradition. Differences between the surviving planks even suggest that several vessels may have been present. 

Bongal also produced ceramics, glass, beads and coins pointing to connections with much wider exchange networks. The researchers do not argue that the Bongal boats themselves were making long-distance voyages across the Indian Ocean, but propose that locally constructed vessels formed part of a regional maritime network, moving through rivers and along Sumatra’s coast and connecting communities there to broader systems of exchange.

Reference
Mochtar et al. 2026. “Lashed-Lug Boats from the Bongal Site: New Evidence for Early Maritime Networks on the West Coast of Sumatra.” International Journal of Nautical Archaeology.
10.1080/10572414.2026.2714901

#SoutheastAsianArchaeology #Indonesia #Sumatra #MaritimeArchaeology #NauticalArchaeology
  • Betel, Boats and Border Stones is this week’s Southeast Asian Archaeology Newsletter.⠀
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This issue starts with a fascinating new paper on ancient teeth from South Sulawesi, where unusual dental wear may point to the habitual sucking of whole areca nuts by pre-agricultural foragers.⠀
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Then we move from teeth to timbers: lashed-lug boat remains from Bongal on Sumatra’s west coast, including a 7th-century quarter rudder, add new detail to Southeast Asia’s early maritime networks.⠀
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And yes, there are more boats: Phanom Surin in Thailand and the Butuan boat sites in the Philippines both make appearances this week.⠀
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Plus: Preah Vihear, Koh Ker, Prambanan, Đông Sơn drums, repatriation, digital heritage, and more.⠀
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Read the full issue at the link in bio.⠀
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#SoutheastAsianArchaeology #Archaeology #MaritimeArchaeology
  • People in Sulawesi may have been habitually using a neuroactive plant as far back as 25,000–16,000 years ago.

A new study in Science Advances examines two preagricultural foragers from South Sulawesi, Indonesia, separated by thousands of years but sharing an unusual dental pattern: deep, rounded, circumferential wear that does not match ordinary chewing. The researchers argue that the wear formed through repeatedly holding, sucking or gently gnawing a small, hard object in different parts of the mouth. 

Using LC-MS, the team detected arecoline—a characteristic alkaloid of areca, or “betel”, nut—in dental samples from both individuals. One came from Leang Bulu Bettue and dates to 25–16 ka; the other, from Leang Cappalombo 1, is associated with deposits dating to around 7.6–6.3 ka. 

This was probably not betel chewing in the form familiar today. Modern betel quid typically combines processed areca nut with slaked lime and other ingredients. To test whether a simpler practice was plausible, the researchers soaked intact areca nuts and applied the resulting solutions to cells expressing human receptors. The experiments showed that intact nuts could release physiologically active arecoline without slaked lime. Combined with the dental wear, chemical residues and experiments support the authors’ interpretation that these foragers habitually sucked whole areca nuts.

For now, the sample is just two individuals, and psuggestions that the nuts were used for stimulation, pain relief or medicinal purposes remain hypotheses. What the study does show is that habitual neuroactive plant use may reach far deeper into the hunter-gatherer past than the archaeological record had previously demonstrated. 

Reference
Brumm et al. 2026. “Betel nut sucking is the earliest recorded evidence for the habitual use of a neuroactive plant drug.” Science Advances.
10.1126/sciadv.aei1901

#SoutheastAsianArchaeology #Sulawesi #IndonesiaArchaeology #Prehistory #BetelNut
  • Twenty-two small beads can preserve the traces of a much larger world of movement and exchange.

A new archaeometric study examines beads excavated in 2023 at Khok Phithak, within the ancient city of Khu Bua in Ratchaburi, central Thailand. Khu Bua was an important urban centre associated with the Dvaravatī cultural sphere, enclosed by earthen ramparts and moats and situated within the Mae Klong river system. 

The researchers analysed 21 glass beads and one chalcedony/agate bead, combining microscopic observations with VP-SEM-EDS, LA-ICP-MS and micro-Raman spectroscopy. Manufacturing traces—including axial colour streaks and elongated bubbles—indicate that most of the glass beads were made by drawing glass into tubes or canes before cutting them into individual beads. 

Their chemistry indicates that nineteen beads belong to the m-Na-Al-1 glass subgroup, consistent with glassmaking traditions documented in South Asia, particularly the wider technological sphere of southern India and Sri Lanka. Together with their manufacturing technique, the authors associate these beads with the large-scale Indo-Pacific beadmaking tradition. 

However, one blue bead, B014, is made from plant-ash soda–lime glass with a broad western Asian affinity—although the study cannot identify a specific production centre. Another remarkable bead, B007, appears to have been wound from recycled iron-smelting slag, suggesting an entirely different production history.

Rather than evidence for primary glassmaking at Khu Bua itself, the authors interpret the assemblage as reflecting an inland centre of consumption and possibly redistribution, connected through maritime and riverine networks to much wider systems of Indian Ocean exchange. 

Reference
Risteka et al. 2026. “Production Technology and Provenance of Dvaravatī Glass Beads from Khu Bua, Central Thailand: An Archaeometric Study.” Heritage 9, 347.
10.3390/heritage9090347

#SoutheastAsianArchaeology #ThailandArchaeology #Dvaravati #KhuBua #ancienttrade
  • Small finds, big stories this week.⠀
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The latest Southeast Asian Archaeology newsletter focuses on Thailand, with newly reported rock art, worrying news of looting, and two new papers showing what archaeological science can reveal from humble materials.⠀
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One study looks at prehistoric pottery from Don Up Mung in Nong Bua Lamphu, tracing differences in clay composition, firing and production choices. Another follows glass beads from Khu Bua in Ratchaburi into the wider world of South Asian glassmaking and Indian Ocean exchange.⠀
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Also: a LOT of opportunities this week — jobs, scholarships, courses and calls for papers.⠀
⠀
Link in bio⠀
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#SoutheastAsianArchaeology #Archaeology #CulturalHeritage #ArchaeologicalScience
  • Can inscriptions help reconstruct how a kingdom expanded across a landscape?

King Citrasena (Chitrasen, later known as Mahendravarman) ruled Chenla in the late 6th to early 7th centuries, during a period when Chenla’s influence was extending across parts of what are now Cambodia, Laos and northeastern Thailand. His reign is known partly through inscriptions recording religious foundations, royal achievements and other acts of authority. 

Pailoplee and Khatshima map 21 inscriptions from at least 19 locations associated with Citrasena, and asked if people were moving between these places, which routes would they have taken? To explore this, they use Least Cost Path (LCP) modelling in a GIS. LCP calculates routes that minimise the “cost” of movement across terrain.

In archaeology, this can help identify plausible corridors shaped by features such as slopes, river valleys and mountain barriers. These models show how movement could have been structured by the landscape under the assumptions of the model.

Across several scenarios, the reconstructed paths repeatedly concentrate around major river systems—especially the Mun River—and particular passes through the Phnom Dong Rek (Dangrek) mountain range. The authors also compare the modelled network with archaeological sites attributed to Citrasena’s period, many of which fall along these reconstructed corridors.

Where river navigation would have been difficult (such as the Khone Phapheng Falls), the authors propose that Citrasena’s forces may instead have moved overland along riverbanks, using waterways as natural guides through the landscape.

The placement of several inscriptions near river confluences also suggests that these locations may have been important for controlling movement, communication and exchange, not simply access to water.

Reference
Pailoplee, S. & Khatshima, K. 2026. “The role of King Chitrasen (Mahendravarman) in the expansion of the Chenla Kingdom: A study of inscriptions and historical geography.” Social Sciences & Humanities Open 14, 103503.
10.1016/j.ssaho.2026.103503

#SoutheastAsianArchaeology #Cambodia #Thailand #Laos #Chenla
  • Sometimes the biggest archaeological questions depend on evidence we cannot see during excavation.

Microarchaeology investigates archaeological deposits at microscopic and microstratigraphic scales. In Southeast Asia, this can be especially valuable because monsoonal wetness, tropical weathering, intensive land use and complex depositional histories can affect how archaeological evidence survives. 

Researchers can examine the surrounding sediment for traces of past activity and later disturbance. Methods discussed in this new paper include sediment micromorphology, laboratory micro-excavation, high-resolution imaging, FTIR microscopy and SEM-EDS. Depending on the context, microscopic evidence can help identify burning, trampling, plant processing, sediment movement and environmental change. 

The importance of that context is illustrated by work in northern Laos. At Tam Ngu Hao 2, microstratigraphy was used alongside lithological observations and dating to establish the stratigraphic context of Denisovan fossil evidence. At Tam Pà Ling, it has shown potential for investigating environmental seasonality and possible patterns of early modern human presence. These methods help archaeologists understand what happened to a deposit before drawing conclusions from what it contains.
 
The paper also introduces the Australian Microarchaeology and Palaeosciences Facility (AusMAP) and argues for greater collaboration, training and locally based microarchaeological expertise across Southeast Asia. 

Reference:
Hernandez et al. 2026. Scaling down to look further back: Southeast Asia, deep-time science and microarchaeology. SPAFA Journal 10.
10.26721/spafajournal.651369a4y8 

#SoutheastAsianArchaeology #Archaeology #Microarchaeology #Geoarchaeology #ArchaeologicalScience
Thursday, October 1, 2026
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Tracing back Malaysia’s stone-age man in Lenggong

18 March 2007
in Malaysia
Tags: Bukit Bunuh (site)Bukit Jawa (site)Bukit Kepala Gajah (site)caveGua Gunung Runtuh (site)Gua Harimau (site in Perak)Gua Ngaum (site)Gua Teluk Kelawar (site)Kota Tampan (site)Lenggong (town)Lenggong Archaeological MuseumLenggong Valley (site)lithicsLiz Price (person)PalaeolithicPerak (state)Perak ManprehistoryshellsUniversiti Sains Malaysia (university)Zuraina Majid (person)
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17 March 2007 (The Brunei Times) – Liz Price’s feature in the Brunei Times about the archaeolgical finds in Lenggong, Perak, including the Perak Man, Kota Tampan site, Gua Gunung Runtuh and Gua Harimau.

Tracing back Malaysia’s stone-age man in Lenggong

PERAK Man, Peninsular Malaysia’s oldest inhabitant, is well travelled despite his great age of 11,000 years. A few years ago he went to Japan for an exhibition, and in 2001 and again in 2006 he visited Kuala Lumpur where he starred in his own exhibition called Perak Man. Now he is having a well deserved rest and is back in his native Perak, where he is residing in the new Lenggong Museum. He is, after all, one of the most important inhabitants to have lived in Malaysia, because his bones survived to tell the tale. Perak Man, found in 1991, is the only complete human skeleton found in Malaysia. The cave which was his final resting place is called Gua Gunung Runtuh and is situated in Bukit Kepala Gajah in the Lenggong Valley in Ulu Perak. The skeleton, found by Prof Zuraini Majid and her team from Universiti Sains Malaysia, has been dated about 11,000 years, which makes him a Stone Age man, from the Palaeolithic period. It is believed Perak Man was an important member of his tribe judging by the way he was buried, in a foetal position, and accompanied by stone tools. He was about 157cm tall and probably aged between 40-50 when he died. He had an atrophied left hand and one finger was deformed. The skeleton, remnants of tools and food such as shells and animal bones were found in the cave as well. The first time I went up to the Lenggong area, I visited Gua Gunung Runtuh. Although there was nothing to see except for the pits dug in the floor by the archaeological researchers, it was easy to get the imagination going, and to reflect on how Perak Man and his fellow humans had used that cave as a shelter. The Lenggong valley is one of Peninsular Malaysia’s most important areas for archaeology, as excavations have revealed many traces of Malaysia’s prehistory. The town of Lenggong is situated some 100km north of Ipoh on the Kuala Kangsar to Grik road.

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