Archaeological Discovery of Yangshao Culture.
Archaeology excavation of a neolithic tomb reveals significant archaeological evidence of the Yangshao / Huaxia culture. Especially in the totem of Dragon and Tiger. The same totemic symbol found in Zhou dynasty royal tomb, Zeng Hou'yi tomb. This may offer new clue to the origin of dragon symbol, besides pushing back the known history of dragon figure back 7000 years, it gives possible new interpretation of the astronomy in neolithic period.