change to "Sea of Korea" from 'Sea of Japan' in the U.S. textbooks.

The reason why we should see "Sea of Korea" in the U.S. textbooks:
1.So many old maps in Japan describes all.
If you search in 'google' thoroughly, there are records that even Japanese used 'Korea Sea' until 18th century.
2.This isn't the first time we found Sea of Korea(MARE DE COREE)in the 17th century map. The map by Robert Dudley, published in 1646, also used MARE DE KOREE(which means Sea of Korea)instead of MARE DE JAPON(Sea of Japan).http://dvoke.blog.me/80157944905-This is the link for the map of Robert Dudley.
3.Divese students in the United States have the rights to learn "true"history!!!!!!
4.http://www.google.co.kr/search?tbm=isch&hl=ko&source=hp&biw=1366&bih=569...