1. At that time, the place where Su Wu herded sheep was called Beihai, which is now Lake Baikal in Russia. Before the Qing Dynasty, the lake was always a nomadic place for the Huns, Mongolians and other northern nationalities in China.
2. Beihai City, Guangxi
3. Oil-rich North Sea of England.
4. Beijing Beihai Park
5 Bohai Sea
The Sea of Japan and the North Sea were printed on the previous maps, and the Sea of Japan was connected with the territory of China in previous dynasties, while Lake Baikal was not connected with the territory of China.
Beihai County, the name of the Western Han Dynasty, is located in the south of Bohai Sea, the west of Jiaodong country and the east of Zichuan country.