The first generation of Duke Zhou in history was named Ji Mingdan (about 1 100 BC), also known as Shu Dan, and was the fourth son of Ji Chang, the king of Zhou Wen. Because its fief was in Zhou (now Qishan North, Shaanxi Province), it was Lord of Jue, so it was called Duke of Zhou or. He was an outstanding politician, strategist and thinker in the early years of the Western Zhou Dynasty. He is regarded as the founder of Confucianism and one of the most revered ancient saints in Confucius' life. There are many sayings about Duke Zhou in history. More famous is the Duke of Zhou mentioned in the Book of Changes. The Duke of Zhou was feudal, and established the system of music and etiquette, which played a key role in the consolidation and development of Zhou Dynasty's rule. It is said that Zhou Wenwang and Ji Chang have 100 sons, and the eldest son Ji Boyi was killed by Zhou Wang in his early years. The second child Ji Fa later became Zhou Wuwang, the third child Ji Xianlin and the fourth child Ji Dan. Of all the sons, Ji Fa and Ji Dan are the most valued and capable. Ji Dan is the most filial and friendly, and stands out among all people. This record in Historical Records: Since King Wen, Dan has been a dutiful son, devoted to benevolent government, which is different from other sons. After the death of King Wen, King Wu Ji Fa succeeded to the throne. Duke Zhou, surnamed Ji Mingdan, is the fourth son of Zhou Wenwang and the younger brother of Zhou Wuwang. He was a famous politician in ancient China. Assisted Zhou Wuwang in two expeditions to Zhou Wang, and ruled the world with rites and music. And the Duke of Zhou as a supplement, translated, Duke of Zhou is it. Among these younger brothers, such as Zhao, Bi, Mao Gongsui, Cao duo, Wei Kangshu, etc. They are all very capable, and follow the fourth brother to assist the second brother.