Science and technology of the Tang dynasty
The Tang dynasty (618–907) of ancient China witnessed many advancements in Chinese science and technology, with various developments in woodblock printing, timekeeping, mechanical engineering, medicine, and structural engineering. == Woodblock printing == The popularization of woodblock printing during the Tang dynasty made the written word available to greater audiences.
Source: Wikipedia — Science and technology of the Tang dynasty (CC BY-SA 4.0)