Originally, this book was known as the I of the Zhou dynasty (1122–221 B.C.)… King Wen of the Zhou dynasty arranged the sixty-four gua and wrote the Decisions on the Gua, his son, the Duke of Zhou, composed the Yao Texts, and Confucius wrote the commentaries.
Huang identifies the Chou Dynasty as the era in which the I Ching received its canonical three-sage authorship and thereby its enduring philosophical authority.
, The Complete I Ching: The Definitive Translation, 1998thesis