Sangjeong yemun was published with movable metal type between 1234 and 1241. Yi Gyu-bo wrote postscript on behalf of Choi Yi which show how this book was published with movable metal type. Goryeo kingdom records indicate that a major printing effort, the 50 volume Sangjeong Gogeum Yemun (Prescribed Ritual Text of the Past and Present) was printed with cast metal around the 21st Year of reign of King Gojong of the Goryeo dynasty (around 1234 CE). Another major publication, Nammyongcheonhwasang - Songjungdoga (Sermons of Song period Buddhist Priest Nammyongvhon) was printed with cast metal type in the 26th Year of the reign of king Gojong (1239 CE).