Early in 1900s (decade), a walled-up cave containing a cache of manuscripts was discovered by Chinese Taoist Wang Yuan-lu in the Mogao Caves. The scroll with the star chart was found amongst those documents by Aurel Stein when he visited and examined the content of the cave in 1907.4 One of the first public mentionings of this script in Western studies was from Joseph Needham's 1959 version of the book Science and Civilisation in China. Since that time, only a few publications have been devoted to the map, nearly all being Chinese publications.5
The symbols for the stars are divided into three different groups. The groups are presented in three colors representing the "Three Schools of Astronomical tradition".6
Whitfield, Susan. [2004] (2004). The Silk Road: Trade, Travel, War and Faith. British Library Staff. Serindia Publications. ISBN 1-932476-12-1. https://books.google.com/books?id=9AUxnUNRekgC ↩
"Chinese Astronomy Resource: Contents". idp.bl.uk. Archived from the original on 2019-03-29. https://web.archive.org/web/20190329214006/http://idp.bl.uk/education/astronomy/index.html ↩
Jean-Marc Bonnet-Bidaud, Dr Françoise Praderie and Dr Susan Whitfield (16 June 2009). "The Dunhuang Chinese Sky: A Comprehensive Study Of The Oldest Known Star Atlas". Archived from the original on 2 April 2014. The Dunhuang star atlas is one of the most spectacular documents of the history of astronomy. It is a complete representation of the Chinese sky including numerous stars and asterisms depicted in a succession of maps covering the full sky (Figure 1). Apart its aesthetic appeal, the document found on the Silk Road is remarkable as it is the oldest star atlas known today from any civilization. /wiki/Jean-Marc_Bonnet-Bidaud ↩
International Dunhuang Project.bl.uk Archived 2017-06-10 at the Wayback Machine https://idp.bl.uk/pages/collections_ch.a4d ↩
Peng, Yoke Ho (2000). Li, Qi and Shu: An Introduction to Science and Civilization in China. Courier Dover Publications. ISBN 0-486-41445-0 https://books.google.com/books?id=_P6C4JO4JCUC ↩