A historical break - The emperor's tomb
Around the fifth to third century BCE, China was divided into seven states, each waging war on another during a time known as the Warring States Period. As the leader of a western state called Qin, Ying Zheng rose to even greater power after emerging triumphant in the battles against the other six states in 221 BCE. After his victory, Ying Zheng united the feuding regions and declared himself the First Emperor of China under the new name of Qin Shi Huang. As emperor of this collective,
its well documented that Qin Shi Huang was a dictator. Some accounts detail an incident in which 460 scholars were executed for disagreeing with Qins government, and their texts were burned or confiscated. Having assembled a living army comprising of hundreds of thousands of soldiers, Emperor Qin turned his attention to a palace and military force he desired not only in the living world, but one he could reside with in death.
Much more:
https://www.howitworksdaily.com/inside-the-secret-tomb-of-emperor-qin/