These stone slabs are found in South Central and South East Vietnam. A set of Dan Da consists of 3 - 15 slabs. The age of these slabs are dated back to 3,000 - 10,000 years.
The first set of Dan Da of 11 slabs was discovered in 1949 in Ndut Lieng Krak in Dak Lak, and now are displayed in a museum in Paris.
During 1980s and early 1990s we discovered more 200 stone slabs in provinces of Dak Lak, Dong Nai, Khanh Hoa, Lam Dong, Phu Yen.
Stone slabs are well kept as family's treasure, and played at grand ceremonies. The sound of the stone slabs is far resounding as the sound of forest and waterfall.
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