Good figures of metal weapons and resources excavated at several Phung Nguyen lifestyle web-sites in northern Indochina are affiliated with the start with the Copper Age in Southeast Asia.[20] In addition, the beginning of the Bronze Age has long been confirmed for approximately 500 BC at Đông Sơn. Vietnamese historians https://gk8889000.life3dblog.com/30236992/helping-the-others-realize-the-advantages-of-việt-nam