From the period of Fu Xi to the Dynasties of Xia and Shang, Yi Trigrams developed for more than eight thousand years. 自伏羲時(shí)代經(jīng)炎黃時(shí)代到夏商時(shí)代，數字易卦走過(guò)了它五千馀載的漫長(cháng)歷程。
Moreover, Shangqiu was in Yueshi Culture area in the period of Xia and Shang, and then was replaced by the Shang culture in the phase of Bai-jiazhuang. 再者，豫東商丘，夏商時(shí)期為岳石文化分布區，而至白家莊期則為商文化所替代。
