I have found the error that is completely wrong and I recommend you to revise the information. In the map of your web site, the name of the sea between Korea and Japan is named as "Sea of Japan", which is wrongly informed. The name of "Sea of Japan" is decided in the period of imperialism, and the right name is "East Sea". It has been used throughout history.
For these reasons, please check up the information again and correct it. I'm sorry that I can't include all the information of "East Sea". Please visit the web site (http://www.eastsea.org/) for more specific information on geographical designations, its history etc.
Thank you for reading my e-mail, and I look forward to your reply.
Yours sincerely,
Soo-Kyun Kim
I attach the map of your website which contains the wrong information.