1. It consolidated the unity, promoted the economic and cultural exchanges among all ethnic groups, and had a far-reaching impact on later generations.

2. Established a centralized monarchy.

3. Implement the county system. There are 36 counties in the world. There is a county under the county.

4. Unified Writing: During the Warring States Period, Qin Shihuang ordered Li Si to simplify the original large seal script arrangement of Qin State into small seal script, which was popular throughout the country. Later, seal script was simplified to official script, which was also popular in the whole country in the Qin Dynasty.

5. Unified measurement: the length, size and weight of the whole country are calculated based on the degree, quantity and weights of Shang Yang and Qin State.

6. Unified currency: it is forbidden to use six currencies, such as tortoise, shellfish and jade. It is stipulated that gold and copper are used uniformly throughout the country, with gold as the upper currency and copper as the lower currency.

7. Communication Waterway: Wuchi Road, as a waterway hub, was built in the southwest of China in 2 14 BC, with a total length of more than 60 miles, connecting Hunan and Lijiang.

8. Northern Expedition of Huns: Since the end of the Warring States Period, Huns have frequently invaded the south, threatening the lives and property of the people of Yan, Zhao and Qin.

9. Economically, the policy of attaching importance to agriculture and restraining business was implemented to foster the development of private ownership of feudal land. In the thirty-first year of the first emperor (2 16 BC), landlords and yeomen who seized land were ordered to declare the amount of land to the government and pay taxes, and their land ownership was recognized and protected by the government. From the cultural, ideological and economic point of view, seal script was formulated on the basis of the common characters of Qin State and spread throughout the country.

Qin Shihuang (259 BC-2 BC10), surnamed Zhao, was born in Handan, the capital of Zhao, the son of Qin Zhuang, a famous politician, strategist and reformer in China history, the first political figure to complete the great cause of China's reunification, and the first monarch to be called emperor at all times and at all times.

In 247 BC, Ying Zheng acceded to the throne. In 238 BC, the adult monarch was crowned in Yongcheng, the old capital, and began to "manage state affairs personally". From 230 BC to 22 BC1year, the six countries of Korea, Zhao, Wei, Chu, Yan and Qi were destroyed successively, the great cause of reunifying China was completed, a powerful centralized country with the Han nationality as the main body was established, and the territory of China was laid.