Choosing (agency)
Cho Chang is a warehouse that kept the grain and cloth to be harvested by Kyeongchang during the Goryeo and Joseon Dynasties. It was created in 992 by improving the system of the Sungjong Dynasty. Even after Koryeo was destroyed, Chosun continued this system. The function of Chojo was largely three things: storage, storage, and transportation of the three songs, and it was called Chojoong. Jochang was installed in the west sea, the south sea, and the Han river basin where maritime traffic developed. I called the maritime use of the maritime port and the maritime port of the river. In each jurisdiction, a branch was set up to oversee the affairs, and the officials dispatched and supervised the center. In the late period of Chohung, Jocham was temporarily activated again due to frequent invasion of jaguars, but was activated again in early Joseon period. Pyeongan-do, Hamkyung-do, and Jeju-do did not arrange the Segok as an inland area, but were able to cover the expenses of the province.