Conor O'Rourke said:If the Japanese didn't have smallpox already when the Europeans arrived, they would have had an epidemic EXACTLY LIKE the Aboriginals did.
A quick google search for "japan smallpox history" turns up thousands of results, one of which is this page:
http://encarta.msn.com/media_701508643_761578931_-1_1/Smallpox_Through_History.html
Which says that smallpox first appeared in Japan in the year 585.
Well that's basically all I WANTED TO KNOW as, previously I was under the assumption that Japan was free of such illnesses until a later date.
As a result, the Aboriginal population would probably thus undergo a similar situation as when contact took place with the First Fleet of 1788.