Strand necklaces were adapted for wear on other parts of the body, as shown by this diadem, buried with an ordinary woman and her cooking pots 500 years before Egypt united under one Pharaoh.
By 1100 BCE or so, every culture in west Asia had it, but that was when everything started to go wrong.
Their annexation of Greece in 146 BCE had no impact on Hellenistic design and, after conquering Egypt in 31 BCE, they represented their rulers as successors of the Pharaohs, as the Greeks had done.
Emperor Wu of Han (140–87 BCE) then dispatched his envoys and troops to pacify local polities around Yunnan, with the expectation that he could open this road for his sake.
In the year 138 BCE, Zhang Qian volunteered to be the Han envoy to the Western Regions (xiyu) where he was supposed to forge an alliance with the Yuezhi people against the Xiongnu, who posed a major threat to the young, ambitious Emperor Wu (140–87 BCE) of the Western Han dynasty (220 BCE–9 CE).
All these tombs are dated before the Qin unification in 221 BCE and demonstrate that cowries were present in Yunnan before the late third centuryBCE.