29 Nov. 2024 [Beopbo News] [Opinion] Dr. Woo Sik Yoo : Established Bibliographers Dispute the Existence of the 'Nammyeong Jeungdo' Metal Type Printed Book

‘Mugujeonggyeong’ and ‘Nammyeong Jeungdoga’ listed in the printing chronology of the American Printing History Association ‘Nammyeong Jeungdoga’ certified version claimed to be the world’s oldest metal type book “138 years earlier than Jikji”… Attention in the world-renowned academic journal ‘Heritage’