Joseon Dynasty, had the officer to record the history. Occurring in the vicinity of the Royal Academy, which I recorded the whole thing was not anyone's interference. Even the king could even record yourself and never even see relevant officers are also politically not assume any responsibility not to leave their names on record. Alas, the role of the officers standing record in shipbuilding is the king himself had to be careful of their words and actions as a result it was not arbitrary functions as a device to prevent the King Power