They found that 440 maps had used Sea of Korea (Corea), Oriental Sea/East Sea, 122 had used Sea of Japan, and 200 had used other terms.
他们发现共有440幅地图对该海域使用了朝鲜海 (Sea of Korea/Corea)、东方海 (Oriental Sea)或东海的标注，122幅标注的是日本海，另外200幅标注了其它名字。