What does Qin mean?

Qin was the organization in charge of astronomy and meteorology in the Ming and Qing Dynasties, and was responsible for observing astronomical phenomena, calculating solar terms, calendars and other affairs. In the Qin and Han Dynasties, Taishiling was in charge of the astronomical calendar, in the Tang Dynasty, it was called the Four Rooftops, and in the Song, Yuan and Ming Dynasties, it was called Qin Tianjian. In the Yuan Dynasty, there was imperial academy, who was the censor in the Ming Dynasty, and later changed to the censor. In the Qing dynasty, the official position was in the Ming dynasty, and it still belonged to the censor.

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