Now the state of Qin
Qin is in northern and central Shaanxi, eastern Gansu, northern Sichuan and western Henan, and the capital Xianyang is in the northeast of Xianyang City, Shaanxi Province. Qin people began to live in the west of Longshan, which is now the east of Gansu Province. They live with the Rong people, far from the Central Plains. After the Zhou royal family moved eastward, Qin talents gradually moved eastward and finally conquered Guanzhong.
When Qin Mugong was in office, he destroyed the 12 country established by the western military, and expanded its territory for more than 1,000 miles, which laid the foundation for him to be the four major countries in the Spring and Autumn Period. Qin Xiaogong implemented Shang Yang's political reform, and the strength of Qin became stronger and stronger, gradually becoming the most powerful country in the middle and late Warring States period. After Ying Zheng ascended the throne, the Qin Dynasty was established.
Historical Records only takes about 500 words to record the process of Qin Shihuang's unification of the world. It can be concluded that the great cause of Qin Shihuang's reunification is inseparable from the wise decision of his ancestors when they were in power. King Xiang of Qin Zhuang, the father of Qin Shihuang, was the king of Qin in the 37th generation. During his reign, the territory of Qin extended to the girders.