On top of that, the Joseon government adopted a rigid isolationist plan, earning the nickname "the hermit kingdom", but in the end unsuccessful to shield itself from imperialism and was compelled to open its borders, starting an period leading into Japanese imperial rule.
The kingdom of Goryeo wrote the legislation in books, and experienced a large governing administration. Buddhism was extremely important within the kingdom of Goryeo. Bronze-style printing technological innovation was 파라곤 invented in Goryeo Dynasty. This is called the whole world's oldest bronze-sort printing technology.