Dongzhou County belongs to Jizhou, so it belongs to Bohai Legend: Gongsun Zan sent Yu to keep the order of Dongzhou, rebelled against the king's gate, and attacked more than 10,000 people for Yuan Shao. More often, it refers to the right orientation.
Biography of Cang Ba: The Eastern Zhou Dynasty was harassed and bullied. , adhere to the righteousness of violence, made great contributions to the Qing Haidai, all blocked.
"The History of the Later Han Dynasty-Zheng Taichuan": The ancient and modern notes of Zheng Xuanxue in Dongzhou: Xuan is from Beihai, so Yundongzhou refers to Yizhou's "Dongzhou" and refers to Nanyang and Sanfu. A large number of people in this area moved to Yizhou, so these people are called Dongzhou scholars.