The exhibition was opened on March 20 by the Lang Son Department of Culture and Information and the provincial Museum in coordination with the Vietnamese History Museum in Ho Chi Minh City. Local people are given a chance to view more than 100 objects and photos relating to southern ethnic groups such as the Cham, Khmer, K’hor and Sedang.

Also on this occasion, the Lang Son museum has received 61 antiques from the Ninh Binh provincial museum, including Dong Son spearheads, and pottery bowls dating back to the Ly-Tran dynasties.