By Xinhua
Hanoi : Vietnamese archaeologists have spotted relics of a residential area of primitive people dating back to some 10,000 years in northern Cao Bang province, according to media reports.
In the Nguom Boc cave in the province's Hoa An district, the archaeologists found dozens of stone tools and many remains of meals of primitive people who lived in a transitional period between the Old Stone Age and the New Stone Age.
The Old Stone Age, the earliest period of human development and the longest phase of mankind's history, began about two million years ago and ended in various places between 40,000 and 10,000 years ago.