What did the Chinese in the hands dynasty do for the first time

The Yuan dynasty in China lasted from 1279 to 1368 ... On the other hand, although he used some Chinese in low positions in the government, he abolished the civil service exams, preferred to use Chinese in his bureaucracy and established separate rules for the Mongols and for the Chinese.

China's first imperial dynasty was the Qin dynasty. The Qin unified the Chinese Warring States by conquest, however their empire ended up becoming unstable, after the death of the first emperor Qin Shi Huang.