Research & Article
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Exploration & Excavation
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Jaffna Post Disaster Archaeological Research Project 2017
This project collaborated with the Central Cultural Fund, the University of Jaﬀna, Department of Archaeology , Postgraduate Institute of Archaeology - University of Kelaniya, and the UNESCO Chair in Archaeological Ethics and Practice in Cultural Heritage, Durham University. Funded by the British Academy and the Institute of Medieval and Early Modern Studies (Durham University), with institutional support from the Central Cultural Fund, Department of Archaeology and Durham University.
Emerging from a 26 year conflict in 2009, the island of Sri Lanka is now addressing associated humanitarian and cultural impacts as well as establishing a roadmap to national reconciliation. Whilst post-conflict efforts have begun to address humanitarian challenges, damaged cultural heritage has only recently been appreciated for its potential contribution to post-conflict renewal, peace-building and economic development through national and international tourism (Pushparatnam 2014).
One monument badly damaged during the conflict was Jaffna Fort, which had sections of its ramparts damaged and most of the structures within its 22 hectare interior destroyed. Established by the Portuguese in 1618 CE as a quadrangular fort, it was later expanded and remodelled as a five-sided fort by the Dutch, who captured it in 1658. Prior to the conflict, Jaffna Fort was one of the largest and best preserved colonial forts in Asia (Nelson 1984). Despite detailed knowledge of its later history, little is known of its early sequences below the colonial period structures on the surface.
Despite the pioneering textual and field surveys of Indrapala (1965), Pathmanathan (1969) and Ragupathy (1987), the early archaeological sequence of Jaffna, and Northern Sri Lanka more generally, is less well understood than other parts of the island, partly due to access during the conflict but also due to a focus on the monumental heritage of the island’s early capitals. Although there are exceptions, there is a general lacuna of published scientifically-dated stratigraphic sequences relating to pre-colonial heritage in Northern Sri Lanka, forcing a bias towards the use of textual sources for reconstructing the region’s past.
Recent conservation-related work within Jaffna Fort included the excavation of a four metre deep exploratory engineering sondage, from which Early Historic Rouletted Ware was recovered as well as medieval Islamic and Chinese ceramics. With affinities elsewhere within the island (Carswell, Deraniyagala and Graham 2013), these artefacts hint at the antiquity and depth of cultural occupation within Jaffna Fort as well as its pre-colonial role within South Asia and Indian Ocean trade networks. Furthermore, the use of Ground Penetrating Radar will allow for potential identification of earlier structural layouts within the entirety of the interior of the fort, to link to the excavated sequences.
Partnered with archaeologists from the Central Cultural Fund (Government of Sri Lanka) led by Professor Gunawardhana and the University of Jaffna led by Professor Pushparatnam, a team from Durham’s UNESCO Chair in Archaeological Ethics and Practice in Cultural Heritage focus on Jaffna Fort to develop a case-study for developing methodologies for post-conflict archaeology. Funded by the British Academy, with further financial support from IMEMS, the joint archaeological investigations will also facilitate the high-resolution scientifically dated artefactual and architectural sequences for the currently neglected pre-colonial heritage of Jaffna. The programme of work will also assist the development of cultural tourism within Northern Sri Lanka, in the words of Professor Pushparatnam “To promote cultural tourism in Northern Sri Lanka, we have to make a positive approach to popularize the cultural heritage symbols and monuments of this region, such as its ancient history and relevant historical sites and monuments. It will not only preserve the heritage symbols and promote cultural tourism, but also earn a lot of valuable foreign-exchange” (2014: 10).
Pilot excavations will be conducted to provide scientifically dated sequences for the site, which can then be linked to artefactual typologies from published site reports in Sri Lanka and the Indian Ocean region. Ground Penetrating Radar Survey will also identify previous structural layouts of the fort, which will not only provide evidence for the earlier patterns of settlement, but also identify areas of subsurface heritage. This will be added to an Archaeological Risk Map for the site to guide the location of future infrastructure, such as water and power lines. Whilst developing an understanding of the development of Jaffna Fort and its links to international and local trade and exchange networks, the project will also provide the opportunity to develop archaeological recording methodologies for post-conflict damaged monuments, as well as those affected by natural disasters, such as the 2004 Indian Ocean Tsunami.
Developing synergies with projects assessing post-disaster heritage, such as earthquake-affected Nepal, we anticipate that such an approach will provide archaeological methods for heritage and non-heritage specialists alike to rescue and recover material culture from archaeological sites that can be utilised in the restoration, reconstruction and rehabilitation of monuments damaged through conflict or natural disasters.
A season of archaeological investigations was undertaken within Jaffna’s Dutch Fort between June and July 2017 in collaboration with the University of Jaffna and the Government of Sri Lanka’s Central Cultural Fund. During this pilot field season, we excavated trenches to expose the fort’s stratigraphic sequences as well as undertaking UAV and Ground Penetrating Radar surveys to map its surviving architecture and identify potential traces subsurface heritage across the site. In addition, we trailed the application of post-disaster archaeological recording methodologies on the ruins of the fort’s early eighteenth century church.
Unmanned Aerial Vehicle and Ground Penetrating Radar Survey
Our UAV survey mapped the standing monuments within the fort’s interior of the fort as well as its ramparts, moat, outer circuit of ramparts and immediate environs. The survey confirmed the presence of three earlier semi-circular bastions on its north-west believed to relate to the earlier Portuguese fortification and the results linked to the Ground Penetrating Radar. The GPR survey allowed us to identify the depth and extent of subsurface archaeology under the current ground surface of the fort. Undertaken in open areas, we were able to identify a series of earlier structural alignments, which possibly relate to the earlier Portuguese fort. Further processing of the GPR data will allow enhanced identification, characterisation and mapping of these earlier structural phases within the Fort. This will strengthen our understanding of the development of the site over time and help identify subsurface heritage which needs to be protected during future development and reconstruction of standing remains at the site as well as locate potential areas for future archaeological investigation.
Our trenches were located to better understand the developmental sequence of this site and its history of human occupation. The first trench was located next to the interior face of the Dutch fort’s western rampart. This was excavated to identify the depth of the Dutch period rampart and to investigate the possibility of earlier phases of fortification. The removal of the recent debris on the surface revealed sandy deposits below, which appeared to be banked up against a lower phase of walling, stepping out from underneath the rampart wall. Constructed from coral and limestone blocks set within a lime mortar, it is likely that its massive nature was necessitated by the Dutch decision to expand the eastern footprint of the fort far beyond the old Portuguese wall.
We excavated a second trench within the ruins of one of the barrack blocks in the west of the site, later reused as a prison. The upper surfaces contained several phases of European era structures with associated Dutch ceramics and pipes sealing earlier levels below. Recovery of Dusun Jars, early Islamic glazed wares, Rouletted Ware and Black and Red Ware confirm the pre-colonial Indian Ocean significance of the site.
Finally, we also excavated a trench inside the ruins of Queen’s House, the old residence of Jaffna’s Lieutenant Governor. Its upper surfaces were associated with wall alignments and contained a mixture of nineteenth and early twentieth century ceramics as well as modern material. A slot within the trench revealed an earlier wall alignment, constructed from coral blocks, and several cultural phases, which contained European contact ceramics. These deposits were then removed onto coral reef. The lack of earlier materials in this location, and the uncovering of reef, suggest that occupation in the area of Queen’s House was associated with the later expansion of the fort, possibly relating to the Dutch remodelling of the eastern side of the site.
Confirming Professor Pushparatnam’s earlier reports, our first collaborative season within Jaffna Fort has revealed an abundance of pre-colonial contact material, including ceramics which firmly link Jaffna to the wider Indian Ocean, such as Black and Red ware (c.1000BCE–100CE), Grey Ware (c. 500BCE–200CE) Rouletted Ware (200BCE–200CE) and Red Polished Ware (c. 100BCE–800CE) onto contact with the west Asian world through Sasanian-Islamic Wares (c. 200BC–800CE) as well as evidence of trade with East Asia including discoveries of Yue Green Wares (c. 800–900CE), Dusun Stone ware (c. 700–1100CE) and Ming Porcelain (c. 1300–1600CE). European contact ceramics were also identified, including Delft ware and British period ceramics complete with identifiable makers marks and pattern designs. Although we await the measurement of our radiocarbon samples, the preliminary analysis of the material points towards Jaffna’s long history of cosmopolitanism and centrality in international trade and communication networks before and beyond European contact. Further analysis will allow for a quantification of different wares and the ability to map Jaffna’s role in the pre-colonial Indian Ocean more clearly.
Post - disaster excavations
Many of the standing remains within Jaffna fort have suffered substantial damage during the recent conflict and, as conservation and reconstruction programmes are developed for the site, there is a clear need to co-produce methods for recording cultural debris as it is removed during the exposure of the walls and foundations below. Building on our earlier post-earthquake research in Nepal’s Kathmandu Valley Nepal’s Kathmandu Valley, we piloted a methodology for post-disaster excavations in the ruins of the Kruys Kerk in the north-east corner of the fort.
Built by the Dutch in 1706, the kirk was mined and destroyed during the conflict and its surviving walls lay hidden below large blocks of masonry and rubble spreads. Therefore, we started by gridding the north-east corner of the monument and removed the cultural rubble from each square and placed it within the corresponding square within a replicated grid outside the structure. This allowed as to rapidly removal the material while ensuring spatial control. Construction materials from each square were then counted, weighed and stacked for reuse. This was particularly pertinent for monuments within Jaffna Fort as many of the original materials are non-renewable as coral blocks are illegal to procure under national and international legislation and eighteenth century Dutch bricks are no longer available in bulk.
During the removal of rubble, we recovered and catalogued a number of fragments of sculpture and portable antiquities, which helped provide information about the history of the Kerk. This included fragments of memorial slabs from the church wall, which are now being reconstructed to provide information on individuals who were interred or commemorated within the Kerk.
Our removal of the debris allowed for the associated investigation and evaluation of the Kerk’s foundations, which is of critical importance to understand the residual strength of load-bearing walls in advance of conservation or reconstruction. Our exposure of the full depth of the foundations revealed the presence of the cracks throughout the coral and limestone block foundations. As we exposed Dutch period bracing and buttressing of the Kerk’s exterior wall, we may conclude that a number of the cracks were not conflict-related. This provisional finding will assist the development of plans for the future conservation and restoration of the monument as well as providing a methodology for the future clearing of the rest of the Kerk and other damaged monuments across the site.
Chapter in book
- Coningham, R.A.E., Manuel, M.J., Davis, C.E. & Gunawardhana, P. (2017). Archaeology and Cosmopolitanism in Early Historic and Medieval Sri Lanka. In Sri Lanka at the Crossroads of History. Biedermann, Z. & Strathern, A. London: UCL Press. 19-43.
Polonnaruwa Archaeological and Anthropological Research Project
Polonnaruva was the capital of Sri Lanka from AD1017 to 1293, and was a highly planned urban centre surrounded by a ring of religious monuments including Buddhist stupas and Hindu temples. However, we know very little of how the wider landscape was organized, and whether the highly formalised city was reflected by a formalized hinterland; and whether Buddhism, Hinduism and other religions also flourished outside the cosmopolitan urban core.
Research at the preceding capital, Anuradhapura, identified a very different archaeological settlement pattern than had previously been thought. In particular the notable absence of towns led the project team to suggest that monasteries played a dual role of religious and secular administrators within Anuradhapura’s hinterland - unique in South Asia. Anuradhapura was abandoned in the eleventh century AD and a new capital was established at Polonnaruva 104km away.
Central Cultural Fund, Department of Archaeology (Sri Lanka), Postgraduate Institute of Archaeological , Durham University, University of Kelaniya, Maharaja Sayajirao University of Baroda, Lumbini Development Trust, Department of Archaeology (Government of Nepal).
Research at the earlier capital of Anuradhapura demonstrated a landscape in which towns were absent, and where Buddhist monasteries played a dual role of religious centres and secular administrators. However, this lack of royal control over the landscape contributed to the eventual collapse of the city. Did the newly established capital at Polonnaruva avoid this problem by retaining control over its hinterland, or was medieval Sri Lanka plagued by this tension between royal control and religious freedom?
The project aims to undertake archaeological survey and excavation at non-urban sites surrounding Polonnaruva in order to understand the relationship between the city and its wider landscape.
The first season of work completed the equivalent of eight 20km transects and ten kilometres of survey along both banks of the Kalinga Ela canal, during which we identified a total of 90 archaeological sites, 30 hydraulic features, and 50 anthropological sites. The 90 archaeological sites can be further subdivided into 23 ceramic scatters, 28 ceramic scatters with slag, 25 monastic sites, 9 undiagnostic sites, and one each of a colonial period bridge, lithic scatter, metalworking residue scatter not associated with ceramics, a megalithic burial and a large moated area potentially identified as the ancient town of Vijayitapura.
In the 2016 season, we completed the equivalent of six 20km transects, 12km along both baks of the Kalinga Ela canal and 10km of survey along the bank of the Ambang Oya (river). In total the 142 sites were recorded, broken down into 93 archaeological sites, 11 hydraulic features and 38 anthropological sites. The archaeological sites can be further subdivided into 28 ceramic scatters, 23 ceramic scatters with slag, five scatters of slag, 14 monastic sites, eleven undiagnostic sites, five possible Megalithic Burials, two lithic scatters, three examples of ancient quarrying and one conical hole site.
The initial results show that there was a stark contrast in the size and morphology of sites when compared to those around Anuradhapura. At Polonnaruva, the ceramic scatters identified were much larger in size – on average 5,000 square metres (0.5 hectares) in size, and containing brick, tile, pottery and metalworking residues. A sample of auger-cores taken within three of the sites indicates they have occupation depths of over one metre, in comparison to about 20 centimetres at Anuradhapura. Immediately this suggests a very different landscape, with a shift from the mobile, peripatetic villages of Anuradhapura to a more permanent, and perhaps urbanised, landscape. The monastic sites surrounding Polonnaruva ranged from large complexes to small isolated (and often looted) stupas. The complexes were more formalised with defined boundary walls and brick and tile structures, as opposed to the organic monasteries at Anuradhapura. Again, this points towards a very different settlement system within the landscape, and one which was far more rigorously planned and administered from the centre. In the 2016 season we also recovered yoni stones from two sites (one of which was not in situ), representing the first firm identification of Hindu religious activity in the hinterland.
In 2015, excavations were conducted at the Siva Devale No. 2 temple in the northeast corner of the ancient city. The excavations aimed at establishing a scientifically derived chronology for the site, and crucially the artefacts recovered from within it. However, the monument is also suffering from annual inundation during monsoon, and the excavation preceded plans to create a drainage solution for the site. The excavation is shedding new light on this area of Polonnaruva. In the earliest period, a wall in trench C, that runs parallel to the CCF conserved citadel wall, may have been an Anuradhapura period delineation of this area of Polonnaruva, potentially representing the earliest defined urban space at this city. Auger transects revealed that the wall followed a parallel east -west alignment and it is recommended that next season geophysical survey and further small sondage excavations are conducted to reveal the walls full extent and nature. The early precinct wall is thought to be associated with the stone temple construction due to the characteristic ‘Polonnaruva’ period construction method of stone blocks below brick, as seen at the nearby conserved ‘Polonnaruva’ period citadel wall. This precinct wall defined a sacred area around the stone Siva Devale No. 2, forming a courtyard in which occupation deposits did not accumulate and earlier structures, such as the truncated stone pillar in trench D and the drain feature in trench A, were demolished or re-incorporated. Later occupation respected this sacred space, with post-stone temple construction activities being confined to the north of the brick precinct wall. Indeed, a later reused stone block wall respected the original precinct wall boundaries. The later phase of this occupation were associated with craft activity, specifically metal working and potentially glass working.
Further excavations in 2016 aimed to identify further evidence of craft production and industrial activity at the site, as well as to define the temple precinct wall uncovered in the previous field season. The precinct wall was identified in the northeast and southeast corners, but in these locations they were heavily degraded, by either bioturbation, or by robbing of this feature for later constructions. To the south the precinct had almost completely been lost and was represented by a few rubble patches. Inside the precinct wall excavations identified several indicators of previous occupation, including stone and brick footings of structures directly north of the stone temple, as well as a truncated stone pillar. The excavations also uncovered the character of the foundations of Siva Devale No.2. The large well-dressed stone blocks at the base of the temple sat on a thin layer of soil, before resting on stone blocks, including a worked stone resting on the bedrock, and the temple was built on a natural raised area. The use of stone blocks suggests that the Temple construction utilised material from previous phases of occupation and activity.
Excavations at Siva Devale No.2 have confirmed that there was substantial industrial activity immediately outside the precinct wall, suggesting that polluting activities were undertaken outside this designated sacred space. It is also possible that such craft activity may have been related to a temple economy, where products for pilgrims, and possibly the surrounding area were producing goods as part of a redistributive network, perhaps similar to that encountered in the Anuradhapura hinterland in a role undertaken by Buddhist monasteries.
We also excavated a trench either side of the northern wall of the citadel complex within Polonnaruva in order to understand and date its construction. The excavations showed that there were multiple phases of wall construction, and there is evidence of earlier occupation below the extant remains. At present we are still awaiting dates.
- Journal Article
Lucero, L.J., Fletcher, R. & Coningham, R.A.E. (2015). From ‘collapse’ to urban diaspora: the transformation of low-density, dispersed agrarian urbanism. Antiquity 89(347): 1139-1154.
- Chapter in book
Coningham, R.A.E., Manuel, M.J., Davis, C.E. & Gunawardhana, P. (2017). Archaeology and Cosmopolitanism in Early Historic and Medieval Sri Lanka. In Sri Lanka at the Crossroads of History. Biedermann, Z. & Strathern, A. London: UCL Press. 19-43.