Wadō kaichin
和同開珎 / wado-kaichin — Names of money
The copper coin made in ancient Japan.
Wadō KaichinAD 708–
Mannen TsūhōAD 760–
⚠ Simply minting coins does not guarantee their use. Even though the state issued coins, in a society where taxes were paid in rice, the occasions requiring coins were limited.