Why was the Song Dynasty the heyday of the development of ancient porcelain in China?

1. In the Song Dynasty, coal was used instead of wood for smelting, and the firing technology was greatly improved.

2. Frequent commercial activities in the Song Dynasty promoted the division of labor of handicrafts, and manual workshops appeared, which further improved the production level of handicrafts after the Tang Dynasty, such as Meng Qian Bitan;

3. In the Song Dynasty, overseas commerce and trade were frequent, and a large number of high-quality ores and clay were imported from Nanyang and the West, producing excellent porcelain. At the same time, a large number of China people moved to Nanyang to mine minerals overseas. So far, there are many China immigrants who mined minerals in the Tang and Song Dynasties in Southeast Asia and Australia.

4. There was a shortage of gold and silver in Song Dynasty, so it was difficult to use gold and silver as living metal utensils, and the mining, transportation and foreign trade of copper were also strictly restricted. Therefore, from the early Song Dynasty to the Ming Dynasty, the overseas development of China people and China government focused on the exploration and trade of gold and silver in exchange for gold and silver, including Zheng He's voyage to the West to find gold and silver. In the middle and late Ming Dynasty, silver flowed into China, which was attributed to Zheng He. However, the defeat of the Song Dynasty to the Xixia, Liao and Jin wars made the origin of gold and silver farther and farther away from the Central Plains.