Where is health?

Now Nanjing, Jiangsu Province, is called health preservation in ancient times. It is the capital name of Eastern Jin, Southern Song, Qi, Liang and Chen Dynasties, and the economic, cultural, political and military center of China during the Six Dynasties. During the Six Dynasties, Jiankang City was the first city in the world with a population of over one million. The Southern Dynasties culture, represented by Jiankang, and western ancient Rome are called the two centers of human classical civilization, which have had a far-reaching influence in human history. Sima Ye, the emperor of the Western Jin Dynasty, did not dare to build a name and health. The Eastern Jin Dynasty and the Southern Dynasties inherited the name of Jiankang and built its capital here, so the old city is now in Nanjing. In the third year of the Southern Song Dynasty (1 129), jiangning house was changed to Jiankang House. In Yuan Dynasty, Jiankang House was renamed as Jiankang Road and Qing Ji Road.