The first is Yan Dou. According to historical records, in 1 122 BC, it was sealed to Yan after the extinction of Shang Dynasty. Yan Dou is named after being the capital of ancient Yan State. Among the Seven Heroes of the Warring States Period, there is the State of Yan, which is said to be named after its proximity to Yanshan Mountain, and its capital is called "Yan Dou". Then there is Youzhou, one of the ancient Kyushu. The name of Youzhou was first seen in Shangshu Shundian: "Yan is called Youzhou." Youzhou was established in Han, Wei, Jin and Tang Dynasties, and all of them were ruled in Beijing.
There is also Jixian County, which was set up in the Qin Dynasty and was under the jurisdiction of Yangguangjun. Another alias is Nanjing, not Nanjing today, but in the first year of Emperor Taizong of Liao Dynasty, the original Youzhou was upgraded to Youdu House and Nanjing was built.
Another name is Dadu. In the Yuan Dynasty, the new city was rebuilt with Jinligong (now Beihai Park) as the center and renamed Dadu, commonly known as Dadu. Of course, the most famous nickname is Beiping. In the first year of Hongwu in the Ming Dynasty, after Zhu Yuanzhang destroyed the Yuan Dynasty, in order to record the achievements of pacifying the North, the Yuan Dynasty was renamed Beiping.
Another name is Shi Jing. Ming Chengzu moved his capital to Beijing in the 18th year of Yongle and renamed it Shi Jing until the Qing Dynasty. Although there are many "used names" in Beijing, any name is a wonderful collocation of historical nodes. For example, Youzhou is the largest city in North China for many times. For example, Dadu, once the capital of the largest yuan empire in the world, was in charge of the government affairs of the whole Central Asia and East Asia. It is the accumulation of historical glory that makes Beijing one of the most quintessential cultural tourist cities in China.