Ry%C5%8D (Japanese Coin)
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Ry%C5%8D Japanese Coin
Keich?-period koban with value of one ry?

A Ry? (?) was a gold currency unit in pre-Meiji Japan Shakkanh? system. It was eventually replaced with a system based on the yen.

Origins

The ry? was originally a unit of weight from China, the tael. It came into use in Japan during the Kamakura period. By the Azuchi-Momoyama period it had become nearly uniform throughout Japan, about 4.4 monme as a unit of weight (about the same as 16.5 grams).

During the Sengoku period, various local daimy? began to mint their own money. One of the best known and most prestigious of these private coins was the koshukin issued by the warlord Takeda Shingen, who had substantial gold deposits within his territories. The value of the koshukin was based on its weight, with one koshukin equal to one ry? of gold, and thus stamped with its weight (about 15 grams). During the Tensh? period (1573-1592), one ry? was equal to four koku of rice, or 1000 brass coins.

Tokugawa period

The Tokugawa shogunate attempted to create a central currency, based on gold, silver and copper units all exchangeable at fixed rates. Oblong gold coins, called koban, were minted with one koban containing about one ry? of gold, so that koban carried a face value of one ry?. The official rate was set in 1609 at one ry? equal to 50 monme (approx 187 grams) of silver, or 4000 brass coins. However, in reality the relative values between gold, silver and brass currencies fluctuated on an almost daily basis throughout the Edo period.

In 1695 the government decided to increase the amount of metal money in circulation by debasement. As a result, the ry? as a unit of weight of gold and the ry? as the face value of the koban were no longer synonymous. The Keich? koban issued after the monetary reform of May 1601 offered approximately 17.9 grams gold with fineness of 84-87%. The Genroku koban issued in 1695 still weighed around 17.9 grams; however its gold content was reduced to 57%. The H?ei koban of 1706 returned to the original fineness; however, the size was much reduced and it had little more than half the metal value of the Keich? koban. In 1700 the official exchange rate was adjusted to 1 ry? equal to 60 monme silver (225 grams) or 4000 brass coins. Tokugawa Yoshimune further conducted a reform to stimulate the economy and raise prices in 1736, again lowering the gold content of the koban.

One ry? was also considered equivalent to 1 koku of rice, or the amount of rice needed to feed one person for one year, although this was a less exact standard, which fluctuated depending on the abundance of the rice crop in any particular year.

On June 27, 1871, with the introduction of currency reforms after the Meiji Restoration, the ry? was abolished, and replaced one-for-one with the Yen.

Modern conversion

These fluctuations in the gold content of the koban over time, as well as differences in the cost of living between various points in the Edo period and in modern times make any attempt to relate the value of one ry? in terms of modern currency very difficult. Japanese middle school textbooks often state that one ry? was approximately equivalent to 100,000 Yen at the start of the Edo period, and around 3000-4000 yen at the end of the Edo period. On the other hand, the Currency Museum of the Bank of Japan states that one ry? had a nominal value equivalent 300,000-400,000 yen, but was worth only 120,000-130,000 yen in practice, or 40,000 yen in terms of rice.

See also

References

  • Lucassen, Jan. Wages and Currency: Global Comparisons from Antiquity to the Twentieth Century. Peter Lang (2007), ISBN 3039107828
  • Ohnuki, Mari, "The Genroku, Hoei, Shotoku, Kyoho, and Gembun Koban", Short Essays on Monetary History Contained in Monetary and Economic Studies, Research Division 3, Institute for Monetary and Economic Studies, Bank of Japan (ed.), Monetary and Economic Studies, 15.2 (1997).
  • Honjo, Eijiro, "The Economic thought in Tokugawa days", Kyoto University Economic Review, vol. xiii, no. 1 (Kyoto, Oct. 1938), p. 1-22. [Overview of the period 1600 to 1867]

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.

Ry%C5%8D_(Japanese_coin)
 



 



 
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