The Chinese inventor Bi Sheng built movable variety of earthenware c. 1045, but there isn't any recognised surviving examples of his printing. Around 1450, in what is commonly regarded as an unbiased invention, Johannes Gutenberg invented movable key in Europe, in addition to improvements in casting the kind dependant on https://www.youtube.com/channel/UCP9Gw00CldPUmiu43y7fdWw