‘East Sea’ is Korean name being used more than 2,000 years, “Samguk Sagi” dongmyeongwang, including “Eight State Map,”, “gun this country,”, China said that King Gwanggaeto, the rain.Such facts in a variety of maps and food can be found.

Knights of King Dongmyeong of Goguryeo during the Three Kingdoms Period (the technology of the events of 59 BC) and Royal Tombs of King Gwanggaeto (414 AD)

On the other hand, keeping the name ‘Sea Of Japan’ in 1602 Matteo Ricci in (matteo ricci) “Kunyu Wanguo Quantu” the Japanese name, it is argued, was first used, but East Sea.The nomination to the ‘Sea Of Japan’ proven by a variety of food is not aware of. In particular, Japan is in the 19th century Western Highland, the findings that increasing use of ‘Sea Of Japan’ and ‘Sea Of Japan’ designation and claiming that they are established in the 19th century.East Sea is the leader of the many, but was manufactured in Japan “(1809) is also a ilbonbyeon”, “Neocene, (1844) transmission room”, the ‘Chosun Sea’ as the facts are.‘Sea Of Japan’ designation is not established shows that even in Japan.

The Sea of Joseon (Takahishi Kagayas, 1809) of Japan's Varying Strategies