We will write about 401 B.C. and 400 B.C., because these two years are two things in a nutshell: war and change of dynasty.
Let's talk about the war first, the first war was 401 BC Qin State attacked Wei State, Zhiyang Gu, the essence of this war is a retaliatory war launched by Qin State, revenge 409 BC and 408 BC Wei State successive blows to it, these things happened before the beginning of the era of "Zizhi Tongjian", I will not go into detail here, friends who need to know to check the biography of "Wu Qi" for themselves. Let's talk about the place of Yanggu here, there were two Yanggu in the Warring States, one in the northeast of present-day Daming County, Hebei Province, and the other in the southeast of present-day Yuanqu County, Shanxi Province. Yang Gu is also called Yang Fox, the "Yang" of the pre-Qin era must be the south of the mountain and the north of the water, there are almost no exceptions, there is a memorial of the Jin Dynasty Doctor Fox Fox Mountain is also called Fox Mountain, Yang Fox is Fox Yang, a place in the south of Fox Mountain.
The second war was 400 years ago, the three Jin Dynasty united to attack the state of Chu together, this war at first glance is a bit confusing, Wei Zhao Han sent troops to the state of Chu without any reason, not in accordance with the rules, especially in the pre-Qin era, but push the time forward two years in 402 BC when everyone still remembers the matter of "King Chu Sheng was killed by thieves", King Chu Sheng is Xiong Su and Xiong Ding (Wang Ziding) who have two sons, due to the sudden estimation of his death, he did not designate a good heir, So these two brothers competed, and in the end, Xiong suspected that the winner was for the king of Chu, and this prince was set to go **? It was to go to the Wei State, so it is likely that this war was provoked by his lobbying. This is not a story I told by mouth, but it was found in the "Tsinghua Jane: Department of Age" sorted out in recent years, and there were no such cultural relics in Sima Guang's time, so I didn't explain too much. In addition, this war also tells everyone a signal that the Sanjin Dynasty is very united at this time, after all, the monarchs of the three families of this generation used to be colleagues who were officials in the same dynasty, and they naturally advanced and retreated together if there was anything. Finally, let's talk about what the hell is this Sanqiu, not Sancho Pansha in Don Quixote, it is a place name, also called Chengqiu in today's Shandong, this place is actually the place name of Lu State, but at that time Lu State was the little brother of Chu State, so it was recorded that Chu was cut down, in fact, Lu Di was cut down, which also shows from another side that Chu State was strong at that time, and no one wanted to be an enemy of it.
The third war was that Zheng Guo besieged Yang Zhai of Korea, Zheng Guo was a vassal state that rose earlier in the Spring and Autumn Period, but by the Warring States Period, it was already the end of the strong crossbow, and it was really surprising that Yang Zhai, the capital of South Korea, could besiege South Korea, which shows what grade Korea is in the Seven Heroes. In addition, this Yang Zhai everyone can especially remember this place name, a very famous place in Chinese history, there are many historical events that have taken place here, in today's Yuzhou, Henan, there is a famous food of Huashi mutton soup, thirteen bowls and miscellaneous moir, interested friends can go around.
Next, let's talk about the change of dynasty, in the last year of the 4th century BC, there were three monarchs in this year, one was Han Jinghou of Korea, one was Zhao Liehou of Zhao State, and one was Qin Jiangong of Qin State. Han Jinghou and Zhao Liehou are the three Han Qian and Zhao who were divided into the Jin Dynasty and the first princes, Han Qian was succeeded by Han Qian's son Han Zhi Liehou, and Zhao was succeeded by his younger brother Zhao Wuhou. Zhao Wuhou has a story here, when Zhao Liehou died, because his son Zhao Zhang was young, so "the people of the country set up their brother Wuhou", here we can see that in that era, the centralization of power was still relatively scattered, and the selection of the heir was not decided by the monarch himself, the people were at least the nobles of Zhao at that time still had a great right to speak, and the nobles had a lot of power in the vassal states at that time, but who was more serious in the problem, after the Qin State Shang Ying's reform, this problem was solved more thoroughly so it was more successful in the end.
In addition, some people may say that what is the name of this Wuhou, there is no record in history, in fact, it is not that there is no record but it is likely to be deliberately erased, because when Zhao Wuhou died, he wanted to pass on the throne to his son Zhao Chao, but was robbed by Zhao Liehou's son Zhao Zhang, Zhao Zhang almost removed the name of this uncle from the genealogy after Zhao Zhang succeeded to the throne, so there is not much recorded about Zhao Wuhou in history.
Finally, let's talk about this Qin Jiangong, Qin Jiangong's succession is also quite strange, his position is neither from his father nor from his brother, he inherited his nephew's position, that is, Qin Jiangong is the uncle of the previous Qin king, Qin Linggong. During his reign, Qin Jiangong did one of the more important things that he allowed officials and ordinary people to carry swords, breaking the privilege that only nobles could carry swords; The implementation of the policy of levying taxes according to the number of acres of land recognizes the legitimacy of "private land". To a certain extent, the reform of the Qin state was promoted.