The following are some reasons that I personally summarized. Please discuss any questions together: First, the success of Cao Cao is one of his slogans in my opinion, which is somewhat similar to Cao Cao's dedication to the emperor to make him not be a minister (this is the slogan that Cao Cao himself shouted. As for others forcing the emperor who opposed him to pretend to be him, Cao Cao himself never dared to shout such a slogan, otherwise the eighteen-route princes begged Cao). In the early Spring and Autumn Period, the influence of the Zhou royal family was still great, and there were still many supporters and loyalists in various vassal States. For example, Jin, another overlord in the Spring and Autumn Period, has always been a staunch supporter of the Zhou royal family. And put forward the slogan of protecting the Zhou royal family and resisting foreigners (there were many other nationalities in the Central Plains at that time), which attracted many vassal States that supported the Zhou royal family and found reasons for their future invasion. Second, the economy is developed. We know that war costs money. Even under the slavery in the Spring and Autumn Period, even if you don't pay wages, you have to pay for the war all the time. Therefore, wars in any period are linked to the economy. Qi is located near the sea and is rich in sea salt. Make use of the natural advantages of Qi, vigorously develop salt industry and fishery, and create coins to encourage foreign trade. In exchange for a lot of wealth with sea salt, Qi had enough money to support a series of hegemony wars in the future. Third, strengthen armaments and weapons. With the excuse of hegemony and economic foundation, there must be strong force. After Qi Huangong came to power, he emphasized that soldiers should be stationed in agriculture, and the residents should be managed at different levels similar to the army. For example, it is stipulated that every five countries in the country have one track, one track is long, and ten tracks are one mile, and departments are set up. In this way, once there is a war that needs to be called up, for example, one person from each household, led by a pre-set officer, will immediately become an army without taking time to reschedule. Then in the name of hunting, soldiers are often trained to increase their combat ability and experience. Finally, it is stipulated that criminals can make amends by donating excellent weapons and equipment (slavery at that time, there was no rule of law. Ruling the country according to law began in the Qin Dynasty at the time of Shang Yang's political reform, and accumulated a large number of excellent weapons and equipment for Qi. Fourth, the politics is bright. Qi Huangong appointed Guan Zhong and adopted his suggestion. He divided the whole country into six industrial and commercial townships and 15 townships, and formulated the "three officials" system, which turned the whole country into a unified whole. Under this whole, what all departments do is very clear, and Qi Huangong, the supreme leader, always knows the operation of the whole and all departments, and once something goes wrong, he can find the responsible person. This greatly improved the cohesion of Qi, the monarch's judgment on the national situation and the state's execution of the monarch's orders. The above four points are the reasons why I personally think Qi Huangong can become the No.1 tyrant in the Spring and Autumn Period. Of course, speaking of which, Qi Huangong himself is also a wise monarch. With the ambition of a wise monarch who will work hard, he will be able to make good use of people and make bold reforms. When other countries are still "confused", he will be able to determine the best way for the development of Qi at that time (he made suggestions, but finally made a decision on reform, and used his family business to test other people's reform ideas. You can imagine Qi Huangong's inner struggle and pressure at that time.