竹書紀年
Following this was the Shang dynasty, which ruled in the Yellow River valley. The classic account of the Shang comes from texts such as the "Book of Documents", "Bamboo Annals" and "Records of the Grand Historian". According to the traditional chronology, the Shang ruled from 1766 BC to 1122 BC, but according to the chronology based upon the "current text" of "Bamboo Annals", they ruled from 1556 BC to 1046 BC.