@MirCat; following British invasion which commenced in 1788 people born to British Isles parents were called 'currency lads' and 'currency lasses'.
Once our sovereign states agreed to federate, currency lads and lasses and those who'd earlier migrated to Australia became 'Australians'. At that point and under our Colonial Era Constitution, Australia's First Nations Peoples were not even counted as Australians.
Indeed, not until the referendum of 1967 were Australia's First Nations Peoples included in census counts.
And some 235 years after British invasion of their Lands, Australia's First Nations Peoples are still facing opposition from Peter Dutton's Coalition for their RECOGNITION in our Colonial Era Constitution.