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Overview
Key data
| Item | Detail |
|---|---|
| Author | Li Chunfeng (602–670) |
| Completed | Early Tang (finished in a yisi year, hence the title) |
| Volumes | Ten |
| Contents | Classed prognostications: stars, weather, wind, sun and moon |
The origin of the title
“Yisi” is a year in the sexagenary cycle; the work was finished in a yisi year and takes its name from it.
Naming a book after the year of its completion was not uncommon, and this is a notable instance.
Contents and form
The work is arranged by class, setting out earlier prognostications class by class: on the sky, on the sun and moon, on the five planets,
on weather, and on the “wind angles,” each with the views of earlier writers and his own judgement.
Li Chunfeng also compiled the Linde calendar and was a leading calendrical scholar of the Tang;
the astronomical statements in the book rest on the astronomy of his day, so that its astronomical material is reliable apart from the prognostications.
Value
The Yisi Zhan preserves a great deal of earlier divination literature, much of it otherwise lost.
For the study of astral divination and astronomical knowledge before the Tang it is a principal source.
The divination texts quoted in Tang and Song encyclopaedias can often be collated against it.
Full text
Simplified Chinese (TXT) ｜ Traditional Chinese (TXT)
The reader shows the text section by section, with the original tables preserved; the first few lines give source and licence. If scripts are disabled, use the TXT links above.
The title, date, summary and index structure compiled here are offered under CC BY 4.0 (attribution: Chujia Kuang · kuangchujia.com).
The full electronic text (about 132,455 characters) is taken from the Chinese Wikisource text of Yisi Zhan; that part is offered under CC BY-SA 4.0 (attribution — share alike); source: zh.wikisource.org.
The electronic text has not been collated by us; please check the original before citing.
Compiled and arranged by Chujia Kuang.