The more serious historical tampering was in the period of Emperor Taizong and Li Shimin, when historians were repeatedly ordered to revise their own records.
There are also the Ming History of the Civil Servant Group in the Ming Dynasty and the Ming History of the Official Training in the Qing Dynasty.
Generally, there is little controversy, that is, the degree of justice is relatively high, the court does not interfere much with historians, and all parties reach an agreement.
Controversy, there are different opinions on one thing, and many parties hold their own words, that is, the degree of tampering is particularly serious. Too serious to recover.
But China people are very strict about recording history. In other words, there is no European emperor with Homer's epic as history, and there is no Japanese emperor who has lived for hundreds of years.
But individual things and affirmations are different from the real situation.
Because most people who record history are intellectuals, although intellectuals have no administrative power in many cases, they have always held the right to speak in thousands of years of history. This problem is big.
For example, Qin Shihuang burned books to bury Confucianism for a reason, but we don't know what the reason is now, and it is definitely not just to control cultural thoughts. But now I can only see this one-sided information. Qin Shihuang has been scolded for more than 2000 years.
Therefore, if you offend anyone, don't offend intellectuals.
They may not beat you, but they can definitely make you immortal with a pen.