In QingliPeriod, a commoner named Bi Sheng invented Movable-Type Printing. --Dream Pool Essays
Bi Sheng (about 970 - 1051) is a native of Yingshan, Hubei. He is the inventor of Movable-Type Printing, which is a great revolution in the history of printing. Movable-Type Printing is one of the four great inventions of ancient China; it is an invention which not only paves the road for cultural and economic development of China, but also contributes to the improvement of world civilization.