The Japanese Yen is the official currency of Japan, issued and managed by the Bank of Japan under the currency code JPY. It is known for its stable value and low inflation rate, is one of the world's major reserve currencies, and is commonly used in international foreign exchange transactions.
The Japanese Yen is mainly used in mainland Japan and its dependent islands, such as Okinawa and Hokkaido. It is the only legal tender circulating within Japan and is not dependent on other countries or regions.
The basic unit of the yen is the yen, and the secondary currency is the ken (1 yen = 100 ken, but ken is no longer in circulation). Banknotes are available in denominations of 1,000, 2,000, 5,000 and 10,000 yen, while coins are available in denominations of 1, 5, 10, 50, 100 and 500 yen.
The yen originated in 1871 during the Meiji Restoration as part of modernization reforms aimed at unifying the Japanese monetary system. It was initially pegged to gold, had a fixed exchange rate after World War II, moved to a floating exchange rate system in 1973, and became an important currency in the global economy.