Archaeologists in Vietnam discover prehistoric remains in northern Vietnam that may date as far back as 12,000 year ago.

Secrets of 12,000-year-old remains
Vietnam Net, 25 Nov 2012
The unique way of decorating the dead (putting sea snails into the eye sockets) that were discovered by archaeologists of the Vietnam Institute of Archaeology in Phia Vai cave in Na Hang, Tuyen Quang province, has revealed the burial secrets of primitive people.
Dr. Trinh Nang Chung, from the Vietnam Institute of Archaeology, said Phia Vai cave in Coc Ngan village, Xuan Tan commune, Na Hang district was discovered based on the legend about the Phia Vai “mountain ghosts.” Indigenous people said that this sacred cave has ghosts. There have been many local people who got lost in the cave and then became mad.
Because of this legend, local people considered the cave as a sacred and inviolable place. This allows the cave to be maintained intact until today.
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