Who wrote the Book of Changes?

On the question of who wrote the Book of Changes, there were four opinions about the horse before Tang Dynasty. Zhou Wang said it was written by Fuxi; Zheng Xuan said it was written by Shennong; Sun Sheng said it was written by Dayu; Later studies all agreed with Sima Qian's Historical Records: "Fuxi wrote gossip and Zhou Wenwang played 384." But Sima Qian's statement only solved who wrote Zhouyi; Can't solve the problem of who wrote the Book of Changes. Because "Li Zhou Guan Chun Tai Bu" said: "The palm method has changed three times, one is to connect mountains, the other is to return to Tibet, and the third is Zhouyi." These three books are the Book of Changes, Lianshan is the Book of Changes in the Xia Dynasty, and the Book of Changes in the Shang Dynasty is collected in Tibet. The legend of Lianshan and Guizang has been lost, and the exact evidence can't be found out who wrote it! Most modern people agree that the Book of Changes was translated into sixty-four hexagrams by Zhou Wenwang based on Fuxi's eight diagrams, of which sixty-four hexagrams were named and Duke Zhou wrote 384 poems. The Book of Changes that most of us see now is a popular edition, which is a bound edition of the Book of Changes and the Book of Changes.