The Tang Dynasty was an imperial dynasty of China that lasted from 618 to 907. It was founded by the Li family, who seized power during the decline and collapse of the Sui Empire.
The Tang Dynasty, with its capital at Chang'an, the most populous city in the world at the time, is regarded by historians as a high point in Chinese civilization—equal to or surpassing that of the earlier Han Dynasty—as well as a golden age of cosmopolitan culture.
There were many notable innovations during the dynasty, including the development of woodblock printing, the escapement mechanism in horology, the government compilations of materia medicas, and improvements in cartography.
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