The Chinese inventor Bi Sheng designed movable variety of earthenware c. 1045, but there are no known surviving examples of his printing. About 1450, in what is often considered to be an unbiased creation, Johannes Gutenberg invented movable key in Europe, as well as improvements in casting the kind based https://www.youtube.com/channel/UCP9Gw00CldPUmiu43y7fdWw