The world's history book describes the "Sea of Japan" is the proper way to call that sea. And guess what? People who just don't like "Japanese" (being such a racist) had an objection with it. Why did they do that? Simple; they just hate Japanese and they don't want to hear "Sea of Japan" in the textbook although it's not even wrong to call it.
Some Koreans thought that they were the right ones, and people around the GLOBE thinks they're wrong. They said the sea should be written as "East Sea" because that sounds more interesting than the "Sea of Japan" just because they don't like Japan.
Majority wins: If South/North America and EU and many other countries says its "Sea of Japan", it is definately
"SEA OF JAPAN"!!!!!!!!!!!!
Why so hard to understand this simple thing?