...After receiving a Ph.D. in history in France, Park began working at the national library in Paris in 1967, where she discovered the dust-covered "Jikji Simche Yojeol." The book, printed by the Buddhist monk Baekun in 1377, is an anthology of the teachings of the Buddha for meditation. At a global symposium of Asia experts in 1972, Park proved that it was printed 78 years earlier than Johannes Gutenberg's 42-Line Bible printed in 1455. Her findings gained international recognition.

LINK TO ORIGINAL

Jikji Simche Yojeol: The world's oldest extant movable metal print book