It is Korean nation that invented and used metal types, one of the epoch-making events in the history of development of printing technology, in the first half of 12th century for the very first time in the world.
People in Koryo, first unified state of the Korean nation, invented and used metal types by further developing wood-block printing and wood-type printing technologies with a long history, thus making a great contribution to the development of publishing and printing technology of the world.
In 1958, metal types moulded in brass in the first half of 12th century were found at Manwoltae in Kaesong, which was the capital of Koryo. These types made of copper, tin and lead as main constituents and silicon, iron and aluminium as subsidiary constituents are 12mm long, 10mm wide and 8mm thick.
According to “Tonggukrisanggukjip” by Ri Kyu Bo, a famous writer in Koryo, 28 copies of fifty-volume “Sangjongryemun” (“Sangjonggogumrye”) were printed on Kanghwa Island between 1234 and 1241. This is still accepted as the longest record in the world associated with the use of metal types.
Other historical books including “History of Koryo” say that several Buddhist books were printed in metal types, which proves that by the beginning of 13th centry printing in metal types was widely conducted on a fairly high level and that the time of its invention in Koryo was the first half of 12th century at the latest.
The fact that Gutenberg from Germany made metal types in 1450 implies that Koryo was as long as 200 years before Europe in the use of metal types.
“Paekunhwasangchorokbuljojikjisimcheyojol”(“Jikjisimgyong” for short) published in Koryo in 1377 is accepted as the world’s oldest copy printed in metal types of all remaining ones and registered at UNESCO. This book was on display in a book exhibition held in Paris, France, under the sponsorship of UNESCO in 1972, where it was appraised as the oldest of all existing printed materials in metal types, and this was informed to every country in the world.
The world’s first metal types are a great pride of the talented and civilized Korean nation with a time-honoured history and brilliant culture.
Kim Kwang Jo, researcher at the Academy of Social Sciences
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