There was a uniform system of writing established in the Qin dynasty.
In 209 BC, during the reign of the second Qin emperor, Chen Sheng and Wu Guang staged an uprising to overthrow the Qin dynasty due to the Qin government's brutal and oppressive policies
Qin's wars of unification were a series of military campaigns launched in the late 3rd century BC by the Qin state against the other six major Chinese states  Han, Zhao, Yan, Wei, Chu and Qi

