Mongolian manuscript from the 19th century, full of charts and diagrams that astrologers (generally Buddhist monks) would use to calculate the best time to do certain things, such as depart on a trip or remove a dead body from a dwelling:

The Public Domain Review
A Mongolian Manual of Astrology and Divination
US NATIONAL LIBRARY OF MEDICINE - Michael J. North, Head of Rare Books and Early Manuscripts, takes a look at one the highlights of the Library'...















