Question: What dynasty united the authoritive books of Confucianism in China?
Sentence (from "Chinese classics"): Chinese classic texts or canonical texts () refers to the Chinese texts which originated before the imperial unification by the Qin dynasty in 221 BC, particularly the "Four Books and Five Classics" of the Neo-Confucian tradition, themselves a customary abridgment of the "Thirteen Classics".
Relevant evidence: Yes