China is sepreated into 2, Yue and Han.
I couldnt find Hwang, when I searched the kanji in wikipedia japanese, I just found a colour.
The reason Ainu and Yamata are 2 is because there are totally unrelated, Ainu are Cacasuian-Australoids and they never became part of Japan until 1800s when Meiji said Ezo is part of Japan. Yamato are probably mix of Ainu (With Korean-Mongols-Chinese), but their culture was mostly Korean.
@Mirc, I wanted to have an ancient feeling to the game. I didnt want to have 21st century countries like "People's Republic of China", or "South Korea". hahaha
I tried to have the names be older than 300ad.
Bangladesh might be changed to Gangaridai, or Bangal.