Wang Zhen’s universal calendar (as reproduced in Wang 1981: 195). This calendrical diagram, titled Shoushi zhizhang huofa zhi tu 授時指掌活法之圗 (Simple Diagram for [Calculating] Variations in the Seasons Granted by Heaven), combines in concentric rings the astrological, lunar, and solar calendars; the changing configurations of the constellations; and the annual sequence of agricultural tasks and the phenological signs that herald them: “all the essential points of a traditional Chinese farming almanac united in a single small circle” (Bray 1984: 53–55).

https://doi.org/10.1215/18752160-8538106