The stake field of Bach Dang battle. (Photo: XUAN TAN)
The Bach Dang victory in 1288 was a brilliant milestone in the history of our nation's fight against foreign invaders, associated with the outstanding military art of the national hero Hung Dao Dai Vuong Tran Quoc Tuan.
Yen Giang, Dong Van Muoi, Dong Ma Ngua - three exposed stake fields of the Bach Dang battle in the Bach Dang Victory Historical Site are important archaeological data reflecting the scale and structure of the Bach Dang campaign that left its mark on the vast area of Quang Yen in the past, along the Chanh River, Rut River, Kenh River, and Bach Dang River.
The first Bach Dang stakes were discovered in 1953, when people were digging the ground and building dikes. At that time, many stakes were pulled up to make beams, straw piles, and some were taken by museums for display.
In 2012, the relic site was ranked as a special national relic. The pile samples were dated by the C14 method, with results focusing on the 13th century.
Of the three stake fields discovered, Yen Giang is the only one with an open-air stake pond of about 120 square meters. The other two stake fields, Dong Van Muoi and Dong Ma Ngua, were filled in after excavation to preserve them intact. All stake fields have been documented.
From 2005 to present, surveys and research have continued to be conducted in the area of Nam Hoa ward, Yen Hai, Quang Yen town (now Phong Coc ward, Quang Ninh province) and Yen Giang ward (now Quang Yen ward, Quang Ninh province). New research methods, using advanced equipment such as GPS to determine the location of relics, edge-scanning ultrasound machines and magnetic measuring devices to survey strange objects at the bottom of the river or underground, exploratory drilling to study the changes of the flow, ancient terrain... have clearly established the characteristics of the terrain, geomorphology, ancient landscape environment, contributing to clarifying the strategy and tactics that Tran Hung Dao built for the Bach Dang battle.
From a long-term research perspective, Dr. Nguyen Van Viet, Director of the Southeast Asian Prehistory Center, shared: Bach Dang wooden stakes have existed for more than 700 years thanks to the anaerobic mangrove sedimentary environment at the estuary. To continue to properly preserve Bach Dang stakes requires strict adherence to procedures.
Piles removed from the natural environment need to be soaked in a neutral water environment to remove sulfur salts, then soaked in a gradually increasing Polyethylene Glycol (PEG) environment. The PEG compound will gradually replace the water in the wood. This is a compound that can stabilize the wood structure, prevent cracking and deformation when the wood dries, and maintain its original shape. Finally, a slow drying mode ensures that the original hardness is maintained. Other wooden piles need to continue to be left in their natural state, protected in a protected area, and protected from environmental and human damage.
Vice Chairman of the People's Committee of Phong Coc Ward, Quang Ninh Province, Ngo Dinh Dung, said that from recent activities, it can be seen that investing human resources and finance at the right level for a research, excavation and conservation plan is very important.
In addition to the support of experts and equipment from international organizations and individuals, the investment interest of Quang Ninh province in the project to preserve and promote the value of Bach Dang relic site, including three Bach Dang stake fields, needs to be implemented soon. Currently, three stake fields have been documented in the relic and scenic complex of Yen Tu, Vinh Nghiem, Con Son Kiep Bac to be submitted to UNESCO for recognition as world heritage.
Mr. Pham Chien Thang, Deputy Head of the Standing Committee of the Monuments and Landscapes Management Board, Department of Culture, Sports and Tourism of Quang Ninh province, said: Before implementing the arrangement and merger of administrative units, the People's Committee of Quang Yen town submitted to the People's Committee of Quang Ninh province a project to study the planning, design and construction of renovation items of the existing concrete embankment system so that the stake yard in Yen Giang ward is directly connected to the natural landscape (river water).
The project also proposes to add an exhibition building to serve research and introduce sightseeing and tourism such as a pedestrian bridge/trench stop, with the pedestrian trench sunk into the riverbed to help visitors visualize more clearly the geological structure of the ancient river and the morphology of the piles...
Source: https://nhandan.vn/phat-huy-gia-tri-khoa-hoc-va-van-hoa-cua-di-san-bai-coc-bach-dang-post892992.html
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