17. The first meaning of "Aboriginal" in the Oxford English Dictionary is "First or earliest so far as history or science gives record", which is a definition whose appearance of accuracy is specious. It is thought that the first humans came to this continent, then not separated by water from what is now the coast of New Guinea, some 40,000 or 50,000 years ago. But no doubt the ancestors of those who inhabited the continent when the first Europeans came included people who migrated here much more recently than the first human arrivals. The "origin" which the word "Aboriginal" assumes to have occurred is, in ordinary usage, not intended to refer to human beginnings here, but to the whole long period up to European arrival. If anyone could prove that, as at a date before the first European settlement here, all his or her ancestors were inhabitants of this country, he or she would I think be in the strictest sense an "Aboriginal". However, as is implied in the reasons given in the Majurey matter, it may be extremely difficult to establish facts of that sort. There must be many people in Australia with, say, 1/64th or 1/32nd Aboriginal genes, the presence of which is unknown to them and undetected by others. Even if such a trace of Aboriginal ancestry were proved, in my opinion the person concerned would not ordinarily be called an "Aboriginal". It is important to keep in mind that the respondent's authority does not expressly include, as it might have done, investigating deaths of part-Aboriginals.