7世紀 後半Late 7th century銭貨の製造開始Start of minting coinsAncient Times From the 7th to the mid-12th centuryJapan issued metal coins from the latter half of the 7th century through to the middle of the 10th century, as it aimed to build a centralized government based on the ritsuryo code. Minting of coins ceased in the mid-10th century, and after that commodities such as rice, and cloth made from silk and hemp, which had also been used as money up until that point, continued to play a monetary role.8世紀 前半Early 8th century国家による本格的な 銭貨発行Start of coinage by the state9世紀 半ばMid-9th century銭貨の軽小化と 粗悪化Deterioration of the quality of coins10世紀10th century国家による 銭貨発行の停止Suspension of issuing coins12世紀 半ばMid-12th century渡来銭の流入開始Inflow of Chinese coinsAsuka EraNara EraHeian Era飛鳥時代奈良時代平安時代12世紀半ば金属のお金のはじまりThe First Coins律令に基づく中央集権国家の建設を目指した日本では、7世紀後半から10世紀半ばまで、金属製のお金（銭貨）が発行されました。10世紀半ば以降、銭貨は発行されなくなり、それまでもお金として使われてきた米、絹や麻の布などが引き続きその役割を果たしました。古代 7世紀
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