Like most modern Japanese institutions, the Bank of Japan was born after the Meiji Restoration. Prior to the Restoration, Japan's feudal fiefs all issued their own money, hansatsu, in an array of incompatible denominations, but the New Currency Act of Meiji 4 (1871) did away with these and established the yen as the new decimal currency. The former han (fiefs) became prefectures and their mints became private chartered banks which, however, initially retained the right to print money. For a time both the central government and these so-called "national" banks issued money; to end this, the Bank of Japan was founded in Meiji 15 (1882) and given a monopoly on controlling the money supply. The place of the foundation of the Bank of Japan

The Bank of Japan issued its first banknotes on Meiji 18 (1885), and despite some small glitches -- for example, it turned out that the konnyaku powder mixed in the paper to prevent counterfeiting made the bills a delicacy for rats -- the run was largely successful. In 1897 Japan joined the gold standard and in 1899 the former "national" banknotes were formally phased out.

The Bank of Japan has continued ever since, with the exception of a brief post-WW2 hiatus when the occupying Allies issued military currency and restructured the Bank into a more independent entity. However, despite a major 1997 rewrite of the Bank of Japan Act (?????) intended to give it more independence, the Bank of Japan has been criticized for lack of independence. A certain degree of dependence is enshrined in the Law itself, article 4 of which states:

In recognition of the fact that currency and monetary control is a component of overall economic policy, the Bank of Japan shall always maintain close contact with the government and exchange views sufficiently, so that its currency and monetary control and the basic stance of the government's economic policy shall be mutually harmonious.