Sometimes one can get the impression that the Europeans were the first outsiders to have contact with the Aboriginals since they arrived in Australia tens of thousands of years ago, but Australia is close to Indonesia (and New Guinea) and one would assume that both Indians and Chinese would be aware of the existence of the continent. They were both present at Bali, and when the Aboriginals could find Australia, most definitely the Indians and Chinese, with more advanced technology, could find it. So, how much contact can there have been with the Aboriginals?