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Overview
Key data
| Item | Detail |
|---|---|
| Period of use | 981 – 1000 CE |
| Compiler | Wu Zhaosu |
| Year head | Jian-yin |
Development
The Qianyuan calendar was made by Wu Zhaosu, promulgated in 980 CE, replacing the Yingtian and used until 1000.
It followed the old methods with little innovation. The tension between inertia and reform among Northern Song calendrists shows in this succession of changes.
The rhythm of reform
From Jianlong to Jingkang the Northern Song changed its calendar more than ten times — Yingtian, Qianyuan, Yitian, Chongtian, Mingtian, Fengyuan, Guantian, Zhantian, Jiyuan and others — a change about every twenty years, a sign of diligent measurement and debate.
Full text
No electronic full text of this work is available here. This calendar has no separate transmitted text; its methods survive scattered in the calendrical treatises of the standard histories. Among the histories held here, see Songshi, Calendrical Treatise, juan 68.
The title, date, summary and index structure compiled here are offered under CC BY 4.0 (attribution: Chujia Kuang · kuangchujia.com).
Compiled and arranged by Chujia Kuang.