Northern
North Korea is a history book of Chinese North Korea, which was compiled by Lee Dae-sa and is one of twenty-four history books completed by his son Lee Yeon-su. It is a total of 100 volumes, consisting of 12 books and 88 books. It contains the history of the North Dynasties, Northwest Dynasties, Western Dynasties, Bronze Dynasties, and Sui Dynasties, which correspond to the northern dynasties of the north and south Korea. The total amount is about half of the total sum of "Wujiao", "Bucheo", "Juju", and "Suseo" Not too many. Particularly, there is a large portion of the increase in the western characters not recorded in the above.