No one discovered it. I'm not sure about the spoken language, but Kanji (which is the pictorial form of Japanese, not the phonetic) was brought over from China by Chinese explorers or merchants. Very few, if any, of the pronunciations for these characters were adopted by the Japanese people. Nobody ever discovers a language, but they learn it.
No the chickenpox virus was not discovered in Japan. The vaccine for chickenpox was discovered in Japan in the 1970's.
yes, Ainu discovered japan.
Japan
In 1789
japan discovered it. http://www.chiing.com/
japan got discover in 128
Honda was not discovered it was founded by Soichiro Honda in Japan.
JAPAN:)
Japan!
by a buddhist monk that came to japan
yes
The most important citizens of Japan are the Ainu because they discovered it.