Step 2 introduce
The Qin Dynasty (2265438 BC+0-207 BC) is an extremely important dynasty in the history of China and the first unified dynasty in the history of China, which was developed by Qin at the end of the Warring States Period.
3. Achievements
The Qin Dynasty ended the 500-year-old vassal regime since the Spring and Autumn Period, and became the first centralized country with Huaxia as the main body and multi-ethnic integration in the history of China. It created the emperor system, the central official system represented by three officials and nine officials abolished the enfeoffment system and replaced it with the county system, which completely broke the Shiqing Shilu system since the Western Zhou Dynasty, effectively safeguarded the national unity, strengthened the central government's control over the localities, and laid the foundation for the rule of China's unified dynasty. Therefore, it was called "Qin Politics and Law Forever".