To what extent is Sima Qian's excerpt from The Records of the Grand Historian, a reliable source of evidence about the actions taken by Shi Huangdi during the Qin Dynasty

It is reliable source.

Explanation:

The famous Qin dynasty is also known as the Ch'in dynasty. It is one of the oldest dynasty of the imperial China. Qin dynasty was found by the great ruler, Qin Shi Huang. He was the first ruler of the dynasty.

The Records of the Grand Historian was the monumental history which was started by father of Sima Qian, Sima Tan.

Sima Tan was a great astrologer in the court of Imperial China.

Shi Huangdi was a cruel ruler. He burnt the books and controlled he ideas of the population.

Therefore, i think it was a reliable source as it actually happened then and it was mentioned in the The Records of the Grand Historian.

the term is einsatzgruppen

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