Du

Du, officially the Republic of Du, is a landlocked nation in Sinju. It borders Meisaan to the east, Longzhou to the south, and X to the west. The X Mountains occupy much of the country's areas of X sq km. It is a highly diverse country with a blend of both Jeongmic and Cheonjic cultures. Its five official languages are Duvian,, , Muroese, and.

Etymology
Du originates from a non-Cheonjic people recorded in early Cheonjean records as 豆, 斗, and 兜. By the 7th century CE, the character 豆 was being used exclusively from these characters to denote the area. Contrary to popular belief, the origin of the country's name has no connection to beans.

For much of the second millennium CE, the area that occupies what is now Du today was referred to as Yeonju (Language: 沿州). In 1892, upon the independence of the country after the collapse of Y, the newly-enthroned Prince Wang Cheolheon declared the country's name to be Duguk (Language: 國豆) after its ancient name.

Classical period
The area around Du started seeing migrations by Jeongmic peoples beginning in the 6th century CE, which intensified during the 8th and 9th centuries. By the 11th century CE, most of the population was Jeongmic.

Republican Du
In 1942, Du was occupied by Jeongmi. Following the Eulhae War, the monarchy was abolished and the Republic of Du was set up.

Economy
Du's most important economic sector is manufacturing.