Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.

The Tang dynasty or the Tang Empire ( Chinese : ) was an imperial dynasty of China preceded by the Sui dynasty and followed by the Five Dynasties and Ten Kingdoms period . It is generally regarded as a high point in Chinese civilization , and a golden age of cosmopolitan culture . Its territory , acquired through the military campaigns of its early rulers , rivaled that of the Han dynasty , and the Tang capital at Chang'an ( present - day Xi'an ) was the most populous city in the world .
Tang dynasty