I found that the sea between the Korean peninsula and
  Japan was labeled wth the Sea of Japan. This is evidently an error that needs correction. This sea has been called as East Sea over 2000 years,  ¡°Sea of
  Japan¡± was used since early 20th century, the period of Japanese Imperialism, which is supported by various ancient historical maps.  Using Sea of Japan seems to be a reminder of Japanese
  colonialism Therefore, the right term should be expressed as
  the ¡°East Sea¡±.   |