I found on this website that ‘East Sea' is marked as 'Japanese sea'. However,'Donghae' is the correct expression, and it is wrong to write it as'Japanese sea'. The reason is that the East Sea is the territory of Korea, and I will explain why the East Sea is the territory of Korea.

First, historically, the East Sea has been used by Koreans for more than 2000 years. Considering the historical fact that not only the Sea of ​​Japan, but also the Sea of ​​Korea, the Sea of ​​Korea, and the East of the East were used until the 19th century. It is inappropriate to argue that the Sea of ​​Japan is an internationally established name based on the history of the last 100 years. So, you should also consider using the expression ‘East Sea’. Second, failing to properly consider the names currently used by 50 million Koreans and 20 million North Koreans and 70 million North Koreans is contrary to the general principle of mapping that prioritizes the names used by local residents. Therefore, it is not correct to ignore the expression ‘East Sea’ and write ‘sea of ​​Japan’.

Besides this, there is a lot of evidence that can prove that ‘Donghae' is the correct expression. It would be great if the web administrator also considers these points and corrects it as 'Donghae'. I expect all maps to contain the correct information. Thank you for reading the long article so far. I look forward to your positive response.