Bi Sheng was a Chinese artisan and engineer during the Song dynasty, who invented the world's first movable type. Bi's system used fired clay tiles, one for each Chinese character, and was invented be

Hua Sui, courtesy name Wenhui, art name Huitong, was a Chinese scholar, engineer, inventor, and printer of the Ming dynasty. He belonged to the wealthy Hua family of Wuxi that was renowned throughout