Vietnamese archaeologists announce the new discoveries from this years excavations beneath the Thang Long Citadel in Hanoi.

Artifacts found in Thang Long Royal Citadel
Viet Nam News, 16 December 2015
The excavation of Thang Long Royal Citadel in Ha Noi this year has so far revealed various large-scale architectural vestiges, according to reports released by archeologists at a recent conference in the city.
The archeologists continued to identify traces of overlapping layers of royal palaces from different dynasties dating back to the 8th century. Most notably, the cultural layer of the Ly dynasty (1009-1225) is about 1.15m thick, while that of the Dai La period (9th-10th centuries) is about 0.5m thick.
The structure and scale of architectural relics from the Ly Dynasty have also been identified by experts from the Viet Nam Institute of Archeology. They confirmed that the large water drainage system constructed during the Ly dynasty and unearthed in 2012 was more complicated than initially thought.
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