Van lang nation nation conceived and developed from thousands of years ago. It was the Alliance of the tribes formed social and political community with 1 stub State, social unit is the rural township and the development of rice agriculture. the beginning of the history of every nation must undergo long-term metabolism section 1 from the original Township. trailer-the liver split the development of types of people into three major eras; the era of primitive, barbarian era and the era of civilization. awngghen Council aware that moocg's-liver. angghen said that "môc-gan is the first, understanding the problem to find out how to arrange the pre-history of humanity into a certain system, as long as there is yet more to be more material makes people see the need to revise the dividing of trailer-gan still have brackets". When analyzing the prehistoric cultural stages according to the angghen, moos-gan only interested in 2 first time and step to the third time too. in the 2 first time trailer split liver every time into the period of low, mid and high with the resident characteristics, labour and creative activities the first step, angghen has the essential content of the time according to the concept of trailer-gan: primitive era, the era in which the possession of natural produce available prevails , the human-created product, the mostly are the tools to create favorable conditions for the possession of the other
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