Hello, I am Geun Hyoung Kim, and I have contacted you to let you know that there is a minor mistake in your article. The name called "Sea of japan" should be fixed to "the East Sea".

In my opinion, it seems rather wrong to use the name "Sea of japan". Even though the name "Sea of Japan" and "East Sea" is both okay according to the international laws, the name "Sea of japan" has been made during the Imperial times, so it seems right to use the name "East Sea" which has been used for thousands of years.

You can see the name "East Sea", which is "Dong hae" in Korean in the old maps rather often than the name "Sea of Japan".

I have  no means of disparaging your article, but I hope that the mistake can be fixed.

You can contact me through the email Skybluejacket@gmail.com.

Thank you for your cooperation and help.

Yours sincerely, Geun Hyoung Kim.