Reason: In the late Tang Dynasty and the Five Dynasties, warlords were domineering, which affected the political stability. In the early Song Dynasty, the rulers learned the lessons from the late Tang Dynasty and the Five Dynasties, and even manipulated the regime, abolished the emperor and changed the dynasty.

Impact:

1, the imperial examination was very developed in the Song Dynasty; Great progress has been made in people's education, and schools have been established everywhere.

2. The improvement of the status of scholars provides the fundamental conditions for the rich and colorful world of scholars.

3. Song Dynasty was the weakest dynasty in the history of China. Since Zhao Kuangyin, Song Taizu, it has been invaded by foreign countries for many times, resulting in a lot of land loss and people's displacement.

Extended data:

The ruling and opposition parties lack equal respect for military commanders. At that time, the atmosphere of the imperial court was patriarchal and despised military commanders. In the Song Dynasty, the suspicion of worshipping and restraining military commanders has always been the main theme.

Throughout the history of the Song Dynasty, the family was not changed because of the internal mutiny, which really maintained the stability of the regime. But it also brought bad results. When foreign enemies invaded, the resistance was weak, and finally the country was completely destroyed by foreign enemies.

The level of economy, culture and science and technology in Song Dynasty reached its peak in the ancient history of China and the world history of the same period, but at the same time it had the historical notoriety of "accumulating poverty and accumulating weakness", which was actually closely related to its military failure in governing the country.

References:

Baidu Encyclopedia-Heavy Text and Suppression of Martial Arts