Indigenous Australians did have knowledge, of other existing countries, with many groups having established trade with nearby islands. It wasn't necessary to their way of life to identify a whole continent however, given that they did not have any concept of a continent and to them the lands were divided and shared by all living things. They identified only what was necessary to their locality.
There are numerous dialects for so many different tribes in so many different regions. There is no "one" word for Australia in aboriginal language as there are so many languages. There are individual words for "land" or "earth" (as in dirt/soil) or Mother/Earth, but the word will be isolated to that tribal group's region and be a different word in another region.
Aborigines in White Australia was created in 1974.
Never: the Aborigines are still in Australia.
Australia's Aborigines.
It is generally accepted that the dingo arrived from Asia with the Aborigines when they first came to Australia.
Aborigines were the first people to live in Australia. Archaeological evidence proves this.
Australia
australia
The aborigines.
Aborigines
Aborigines.
Nothing.
Australia