Chen Kan stayed in the barracks for a total of two days, and Wu Jing also stayed with Chen Kan for two days, he later made a phone call to his martial arts teacher, confirmed Chen Kan's identity, and immediately postponed the next day's itinerary, cheekily stayed in the barracks with Chen Kan for two more days under the pretext of hoping that Chen Kan would be treated personally.

Chen Kan has no opinion on this, people must know how to grasp the opportunity, otherwise how can they grasp the success.

Chen Kan has no opinion, Sun Zhengyi naturally has no opinion, this is rare Chen Kan wants to spend the night in the barracks, this is to cultivate the feelings of a comrade-in-arms, and secondly, with such ample time, the group of soldiers in the Sword Brigade will naturally learn from Chen Kan in various ways, if he opposes Chen Kan to be angry, it will be a loss.

That night, Chen Kan once again experienced the nightlife of the barracks, which was very different from the nightlife of the American army, and the Sword Brigade also organized a large-scale bonfire party, and people from the art troupe came to perform.

The next morning, Chen Kan gave a fighting lesson to the people of the Sword Brigade, this time explaining boxing, boxing has a long history, and it can be so popular in the world, it is not unreasonable, this is a minimalist fighting art.

After this boxing lecture, Chen Kan basically finished talking about several of the world's more famous types of fighting, such as sanda, karate, judo, Muay Thai, taekwondo, boxing, etc.

After these talks, their foundation was basically laid, and Chen Kan taught them the martial arts created by the American team back then, and Chen Kan didn't bother to choose a name, so it was called "mixed martial arts", which meant a bit of a messy stew.

Chen Kan left the barracks that afternoon, and Wu Jing also left, originally Wu Jing had an itinerary today, as an artist, he had a lot of things to do, but this time in order to be able to learn from Chen Kan, he pushed off the original itinerary.

After Chen Kan went to his senior sister Weng Xiupin's house for dinner, he exchanged some recent reading experiences, and then left Jinling with Dong Bing and returned to Zhonghai.

After staying in Zhonghai for a while, Dong Bing began to write her papers, while Chen Kan concentrated on his own affairs, this time Chen Kan also found a lot of materials related to the Song Dynasty in the Demon Capital Library, which was enough for Chen Kan to be busy for a while.

As the research deepens step by step, everything becomes more and more difficult, especially if there is a conflict between historical materials, it is very brain-dead, and rigorous reasoning and verification are required.

The more serious the conflict of historical materials, the more difficult it is to argue, and many doctoral students will ignore those conflicting materials when writing their dissertations, that is, they do not use those historical materials that are not conducive to their own arguments, because it is too difficult for conflicting materials to be smoothed out.

However, Chen Kan could not do this, and Chen Kan had to stand the test of writing a hand-me-down work, and he had to face all the conflicting materials, which caused great difficulties.

To take the most typical example, such as the origin of Qin Shi Huang.

In the "Historical Records", there are two different versions of Qin Shi Huang's origin, in Qin Shi Huang's book, there is no problem with his identity, that is, Qin Yiren is the son of his father, but the problem appears in Lü Buwei's biography, in the biography, Yingzheng became Lü Buwei's son.

This is why there are so many film and television works that set Qin Shi Huang as Lü Buwei's son, which is easy to understand, such shooting can attract people's attention and ignite the fire of gossip among the audience, which also leads to many people now thinking that Qin Shi Huang is Lü Buwei's son.

In fact, it is a mystery in history about whose child Qin Shi Huang is, and the mystery created by Sima Qian personally, because there is no direct evidence to prove it, and it is estimated that the only way to know is to do a DNA comparison.

However, this is impossible now, so we can only carry out rigorous logical reasoning, and now the mainstream view of the historical community is biased to believe that there is no blood relationship between Qin Shi Huang and Lü Buwei, how did this view come about, this is also due to Chen Kan.

The first part of Chen Kan's master's thesis has a detailed discussion and careful reasoning on this point, which cannot be said to be necessarily correct, but it can ensure that it is closest to the truth, at least Chen Kan has convinced many scholars.

In the history books, the reason why there is a statement that Qin Shi Huang is Lü Buwei's son is because Lü Buwei invested in politics at the beginning, that is, Qin Shihuang's father Qin Yiren, Lü Buwei gave one of his singers Zhao Ji to Qin Yiren as his wife, it is said that Zhao Ji was pregnant with Lü Buwei's seed before, and this person is Yingzheng.

How credible is this statement, in fact, it is very small.

In this world, most cultures eventually enter a patriarchal society, and one of the reasons is that men want their offspring to inherit property, while women do not know who their children are.

In ancient times, people didn't know what an egg was, and at that time, men and women were often messing around, and women didn't know who the child they gave birth to.

As long as the man controls the woman well, he knows that the baby is his own, and he can rest assured that he will hand over his property to the child, so the man is very strict with his woman and can't let people mess around.

This is also the reason why the heirs were very important in ancient times, just like the concubines of the Qing Dynasty mentioned before, they all have to make tracking records, every pregnant concubine is a treasure, like in film and television works, that makes the concubine miscarry at every turn, that is thinking too much, because the concubine's every move has to be recorded, and you can't hide anything.

In "Romance of the Three Kingdoms", Queen He poisoned Wang Meiren, isn't it known, and it is not that the fetus is killed, but that Wang Meiren is killed.

In the Warring States Period, it was still a relatively strict hierarchical society, and at that time it was very important to bloodline, so if Qin Shi Huang's bloodline was in doubt, then the possibility of him becoming the king was very small, you must know that Yingzheng had many brothers, and they all had a strong background, at least the background was stronger than Yingzheng.

Another point is Lü Buwei himself, why Lü Buwei invests in Qin Yiren is because he wants to earn greater political benefits, if the fact that he gave Qin Yiren's singer is pregnant is exposed, then all Lü Buwei's calculations will be over.

Maybe you will say that if your son becomes the emperor, the return will be greater, then the possibility is very small, you are standing in the present, Lü Buwei's investment is successful, so you think it is possible, but if you think from Lü Buwei's position at that time, this possibility is very small.

Because the situation at that time was very bad for Qin Yiren, even the slightest mistake Lu Buwei would fall short, and Lu Buwei, as a shrewd businessman, would not artificially add an uncertain factor.

The object of Lü Buwei's investment is Qin Yiren, this is certain, Qin Yiren and Lü Buwei even abandoned everything to flee Zhao and returned to Qin, the young Ying Zheng was abandoned in Zhao State, and later it was all kinds of luck that Ying Zheng was able to return to Qin State, which is also the starting point of Yan Prince Dan and Ying Zheng's relationship, both of them were in Zhao State back then, and they were playmates.

Moreover, the so-called "high risk, high reward" does not mean that the risk is raised unlimitedly, that is a fool, if only then the whole world would compete for power, then there will be the greatest reward in theory, Lü Buwei as a shrewd businessman, he is not stupid.

This is Chen Kan's general exposition and reasoning about Qin Shi Huang's life experience, of course, Chen Kan also has a lot of analysis of historical materials.

This is just a matter of identity, it is so troublesome to argue, how many materials are in the Song Dynasty, and there are many conflicting historical materials, each of which has to be rigorously logical reasoning, which is a huge workload.

This is also the reason why no one has studied this aspect, because it is too complicated, and it was said before that many historical materials of the Song Dynasty were compiled by the Yuan Dynasty, and the Yuan Dynasty was really messed up by the way, which undoubtedly increased the difficulty.

It wasn't until the annual meeting of ancient Chinese history was held that Chen Kan left the apartment again......