Question

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Answer 1

The Han dynasty is known its long reign and its achievements, which included the development of the civil service and government structure; scientific advancements such as the invention of paper, use of water clocks and sundials to measure time, and development of a seismograph

The Song dynasty follows the Tang  and the two together constitute what is often called "China's Golden Age." The use of paper money, the introduction of tea drinking, and the inventions of gunpowder, the compass, and printing all occur under the Song.