Chosen Tsushinshi (the Korean Emissary); envoys dispatched from The Ryukyu Kingdom to the Edo Bakufu for paying tribute; world information delivered by ships from the Netherlands and world information delivered by ships from the Tang Dynasty - interrogating castaways
朝鮮通信使-琉球使節-オランダ風説書・唐風説書-漂流民の取り調べ