在日本的历史上最早出现的货币是公元708年(和铜元年)铸造的“和同开珍”。中国早在公元前就有名为“布币”、“刀币”的金属货币。而日本,在“和同开珍”面世以前,是拿稻米、布匹(绢、麻)当钱来用的。为何日本货币出现得这么晚呢?其原因是用以铸造货币的铜太少。到了公元708年(庆云5年),忽然在武藏的国秩父郡开采出大量的铜,日本才得以铸造出最早的货币。当时的铸铜技术不熟练,锕币直径有长有短,很不整齐,约有24毫米。围着圆形铜币中间的方孔,铸有“和同开珍”四个字。当时为纪念发行铜币这 The earliest currency in Japan’s history was found in the year 708 and the same year. As early as BC, China has a metal currency called “cloth currency” and “knife currency.” Japan, however, used rice and cloth (silk and linen) as money before the publication of “Harmony with Jane”. Why is the Japanese currency so late? The reason is that too little copper is used to coin the currency. By the year 708 (Qingyun 5 years), suddenly, a large amount of copper was mined in Gishiu-gun, the capital of Musashi, and Japan was able to mold the earliest currency. Copper was not skilled at the time, actinides have long and short diameter, very irregular, about 24 mm. Around the square hole in the middle of the round copper coins, cast a “with the same treasure” four words. It was to commemorate the issue of copper coins