Fantastic numbers of metallic weapons and resources excavated at many Phung Nguyen culture web-sites in northern Indochina are connected with the start of the Copper Age in Southeast Asia.[20] Moreover, the start with the Bronze Age has been verified for around 500 BC at Đông Sơn. Vietnamese historians commonly attribute https://gk8813344.blog2learn.com/78977541/considerations-to-know-about-vf555