I got a question for you: The Tang dynasty or the Tang Empire (Chinese: 唐 朝) 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.\n\nAnswer this question based on the passage: the capital of the tang dynasty and the largest city in the world at the time was?
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This is the relevant information: 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.
Therefore, the answer is Chang'an ( present - day Xi'an ).
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