Relics for salt production belonging to the Bronze Age and the Neolithic Era were unearthed in the area of Wonup Workers' District, Onchon County in the city of Nampho.
Researchers of the Archaeological Institute under the Academy of Social Sciences intensified the work to survey and unearth historic relics and in this course, found out brine-storing and salt-manufacturing facilities, relics for salt production belonging to the Bronze Age and the Neolithic Era (5,000~5,500 years ago), the first of their kind in the Democratic People's Republic of Korea, in the said area.
The brine-storing facility was domed in favour of storing salt water and divided into two cultural layers with archaeological relics and remains.
The salt-manufacturing facility also consists of two cultural layers.
The Archaeological Society of the Democratic People's Republic of Korea examined the analysis data on the array of the relics discovered in the area of Wonup Workers' District, Onchon County of Nampho, earthenware and soil and proved that the upper cultural layer belonging to the Bronze Age 5,000 years ago and the lower one belonging to the Neolithic Era 5,500 years ago are the relics in which Korean ancestors manufactured salt in the way of boiling seawater.
It also estimated that the historic relics have the value of national treasure showing the superiority of the resourceful and civilized Korean people as a clear evidence proving that the area of the basin of the Taedong River around Pyongyang is a cradle of human civilization.
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