External pouch angle
The other is the Kyujanggung, which was installed in Ganghwa Island in February 1782 for the purpose of preserving the books related to the royal family. When the external pliable angle was installed, the original pliant angle was called the internal pliant angle, and the books were divided and stored in each pliant angle. At that time, Admiral Rose, commander of the French Far East Fleet, who landed at Ganghwa Island, burned Kyujanggak, which destroyed his entire field. As a result, more than 5,000 books were lost, and over 340 documents, including the ark, were plundered.