After the Han Dynasty fell, China split into three kingdoms: Wu, Wei, and Shu-Han
The Three Kingdoms era was an era of chaos and fighting. Then, Wendi founded the Sui dynasty, which brought back unification to China and restored aspects of the Han dynasty that made it successful. This was the beginning of another golden age in China.
Li Yuan established the Tang dynasty after the Sui dynasty fell. The Tang dynasty used the ideas that the Sui dynasty used, and continued the golden age from the Sui dynasty. One development of the Tang dynasty was the Grand Canal, which improved trade and travel.
After the Tang dynasty fell, China split into five dynasties before military inspector-general Taizu took the throne and established the Song dynasty, in which China enjoys another golden age. There was great innovation, such as gunpowder, used in fireworks.
During the Song dynasty, one of the things that flourished was trade. China traded with other countries on the silk road, and traded goods such as silk.
Neo-Confucianism rose during the Song dynasty. This new type of Confucianism blended with a few elements of Daoism and Buddhism. People took extremely difficult tests to become government officials. These tests were made for the great thinkers to pass, so that China could be governed by these people, making the Song dynasty era more prosperous.