 The second accomplishment was the printing in 1377 of Jikji, a guide for students of Buddhism, and the world's oldest extant book printed using metal movable type.Printed onto hanji, it is housed today in the National Library of France, and displays proof of movable metal type well before Gutenberg's time.The beginning of the Joseon period (1392–1910) saw continued flourishing of the hanji industry as paper permeated daily lives of Koreans through books, household items, and popular items such as fans and tobacco pouches.