Qin Shi Huang was a great emperor throughout the ages, and it was precisely because he completed the great unification that he laid the foundation for China's territory today and created a new situation in Chinese history. Qin Shi Huang did not reach the age of 40 before he unified the Liuhe, and then carried out the unification of currency and weights and measures, whether it was the ideological system or the weapon infrastructure, which was the world's leading level at that time. What makes people curious is that when Qin Shi Huang unified the Six Kingdoms, what were other countries doing? The most surprising thing is Japan, when the Japanese were still a group of primitive people.
Today's Japan is the third most developed economy in the world, but when China's Qin Shi Huang unified the six countries, the Japanese on the other side still lived in simple thatched houses, wore grass skirts, did not have their own writing, and did not have the moral concept and sense of shame of modern civilized people, let alone in all aspects of China of the same era.
The reason why the Japanese at that time were a group of primitive people is because it was the Yayoi period in Japan, and according to the theory, the Yayoi people were the primitive people of the Yayoi era. But one thing we need to understand is that from 221 BC to 207 BC, China had a unified Qin Dynasty, but at that time, China was not the only country with a vast territory that could conquer good wars.
For example, Egypt at that time was in the Ptolemaic Egyptian period, which was the dynasty established in Egypt by his general Ptolemy Sottle after the death of Alexander the Great in accordance with the Greek style, which belonged to the end of ancient Egypt. As for the Roman Empire in Europe, its territory reached 5.9 million square kilometers at its peak. It is larger than the 3.4 million square kilometers of the Qin Dynasty.
And our neighbor India, which was in the Peacock Dynasty at that time, was also a powerful empire in the world at that time, and people often compared the Peacock Dynasty with the Qin Empire. However, the difference between the two is still very large, the Qin Dynasty has completed the mission of unification, and it is a centralized country, while the Peacock Dynasty has never been able to unify India' goal. As for Russia at that time, the cold and vast land was inhabited by the Xiongnu, and Qin Shi Huang ordered the construction of the Great Wall to block and defend against these Xiongnu. Today's United States is the world's number one power, when the Qin Dynasty unified the six countries, it is said that there are Mayan civilizations and Atlantean civilizations on the American continent, but it is impossible to verify.