🆕 #archaeology: The oldest securely-dated coin mint, beginning operation between 640-550 BC, has been found at Guanzhuang in 🇨🇳.

Here's an #AntiquityThread on the research (🆓) https://t.co/mHtNM0AI1h 1/ 🧵
📷: The oldest metal coin found in 🇨🇳, discovered at the mint pic.twitter.com/ZC6qqUOlqA

— 🅰ntiquity Journal (@AntiquityJ) August 6, 2021