What breakthroughs did the development of towns in Song Dynasty make at that time?

In Song Dynasty, the city broke through the traditional market boundary in structure and the limitation of the previous generation in time.

1. In urban construction, the traditional Li Fang system has been gradually broken, and there has been a scene of opening a shop along the street.

2. With the rapid development of urban commodity economy, economic functions are diversified, including industrial and commercial cities, commercial cities and handicraft cities.

3. The rural commodity economy is developed, and the "grass market" has gradually evolved into a commercial market town. The development process of "grass market" to market town in Song Dynasty went through three stages: the emergence of a large number of grass markets, the evolution of grass markets to commercial market towns, and the transformation of commercial market towns to handicraft professional towns.

4. The unprecedented development of overseas trade and the emergence of a large number of port cities have promoted the development of bilateral trade and accelerated the development of trade port cities.

The Song Dynasty was an era of high prosperity in commodity economy, culture, education and scientific innovation in the history of China. According to estimates, the total GDP of China in 1000 was $26.55 billion, accounting for 22.7% of the world economy, and the per capita GDP was $450, exceeding the Western Europe's $400 at that time. Although later generations thought that the Song Dynasty was "poor and weak", the people's wealth and social and economic prosperity in the Song Dynasty far exceeded that in the prosperous Tang Dynasty.