The Kaicheng Stone Classics or Tang Stone Classics are a group of twelve early Chinese classic works carved on the orders of Emperor Wenzong of the Tang dynasty in 833–837 as a reference document for scholars. The works recorded are:Book of Changes or I Ching Book of Documents Book of Songs Rites of Zhou Ceremonies and Rites Book of Rites The Commentary of Zuo on the Spring and Autumn Annals The Commentary of Gongyang on the Spring and Autumn Annals The Commentary of Guliang on the Spring and Autumn Annals The Analects Classic of Filial Piety Erya