What did the chinese invent during the tang and song dynasties

Under the next two dynasties, the Tang and the Song, China experienced a prolonged golden age. It became the richest, most powerful, and most advanced country in the world. Wendi declared himself the first emperor of the Sui (sway) Dynasty. The dynasty lasted through only two emperors, from 581 to 618.

Explanation:

well to answer ur question to be completly honest

answer; the above statement is (true);