By definition, an oracle bone is a piece of object wherein these are animal bones coming from an ox or a turtle which are mainly used to worship divine beings through the use of pyromancy. The discovery of these had paved way to the idea that there was already a writing system present during the Shang Dynasty.
Japanese citizens I guess I hope I helped
Your answer is he opened Japan to the west.
It was Chandragupta Maurya 320 .B.C.E
