708 establishments

province of Japan

thumb|Silver coin, 8th century, Japan. Japan Currency Museum. thumb|Wadōkaichin copper coin. thumb|The Chinese Kāiyuán Tōngbǎo coin (開元通寶), first minted in 621 CE in [[Chang'an, was the model for the Japanese wadōkaichin.]] , also romanized as Wadō-kaichin or called Wadō-kaihō, is the oldest official Japanese coinage, first mentioned for 29 August 708 on order of Empress Genmei. It was long considered to be the first type of coin produced in Japan. Analyses of several findings of Fuhon-sen (富夲銭) in Asuka have shown that those coins were manufactured from 683.