Question: How many years of commentary and interpretation are contained in an ancient compendium of divination, which dates back to at least 672 BCE?
Sentence (from "Chinese philosophy"): Although much of Chinese philosophy begins in the Warring States period, elements of Chinese philosophy have existed for several thousand years; some can be found in the Yi Jing (the "Book of Changes"), an ancient compendium of divination, which dates back to at least 672 BCE.
Relevant evidence: Yes