毕昇
The first known movable type system was invented in China around 1040 AD by Pi Sheng (990–1051) (spelled Bi Sheng in the Pinyin system). Pi Sheng's type was made of baked clay, as described by the Chinese scholar Shen Kuo (1031–1095). The world's first metal-based movable type printing press was invented in Korea in 1234, 210 years before Johannes Gutenberg invented a similar press in Germany. Jikji is the world's oldest extant movable metal print book. It was published in Heungdeok Temple in 1377, 78 years prior to Gutenberg's "42-Line Bible" printed during the years 1452–1455.