Taien calendar explained

The Dayan calendar (大衍暦, Dayan Li), also known as Daien or Daiyan or Taien calendar, was a Chinese lunisolar calendar.^[1] It was developed in China; in Japan, it was used from about 764 to 857.^[2]

History

The calendar was created in China. It was first used in the 17th year of the Kaigen era during the Tang dynasty.^[3]

The Taien-reki system corrected errors in the Genka calendar and Gihō calendar which were used in Japan in the first half of the 8th century. It was the work of Yi Xing, who was a Chinese astronomer.^[2]

See also

• Japanese calendar
• Sexagenary cycle

Further reading

• Charlotte von Verschuer (1985). Les relations officielles du Japon avec la Chine aux VIIIe et IXe siècles (Hachi-kyū-seiki no Nitchū kankei), pp. 243-245 n. 114.

External links

• National Diet Library, "The Japanese Calendar"

Notes and References

1. [Louis-Frédéric|Nussbaum, Louis-Frédéric]
2. Trimble, Virginia et al. (2007). "Yixing" in Biographical Encyclopedia of Astronomers, pp. 1252-1253, citing Ohashi, Yukio. (1995).“Daien-reki no hokan-hō nit suite.” (On the Interpolation used in the Dayan calendar) Kagakusi Kenkyu (Journal of History of Science), ser. 2, 34, 195: 170–176.
3. Clement, Ernest W. (1902). "Japanese Calendars," in Transactions of the Asiatic Society of Japan, Vol. 30, pp. 1-82, 73; Japan, Monbushō. (1876). An outline history of Japanese education: prepared for the Philadelphia International Exhibition, 1876, p. 160.