<Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> Movable type (US English; moveable type in British English) is the system and technology of printing and typography that uses movable components to reproduce the elements of a document (usually individual alphanumeric characters or punctuation marks) usually on the medium of paper . </P> <P> The world's first movable type printing press technology for printing paper books was made of porcelain materials and was invented around AD 1040 in China during the Northern Song Dynasty by the inventor Bi Sheng (990--1051). Subsequently in 1377, the world's oldest extant movable metal print book, Jikji, was printed in Korea during the Goryeo dynasty . </P> <P> Because of this, the diffusion of both movable - type systems was, to some degree, limited to primarily East Asia, although various sporadic reports of movable type technology were brought back to Europe by Christian missionaries, traders and business people who were returning to Europe after having worked in China for several years; and influenced the development of printing technology in Europe . Some of these medieval European accounts are still preserved in the library archives of the Vatican and Oxford University among many others . </P>

Who invented movable type and the machine to reproduce text