A genetic study in 2011 found that Aboriginal history is at least 75,000 years old, confirming they may be the oldest continuous culture on the planet.
In 2015–2017, life expectancy at birth for an Aboriginal person in Australia was about 72 years for males and 76 years for females, so overall about 74 years. The life expectancy at birth for non-Indigenous Australians was 80 years for males and 83 years for females (figures rounded).
Between 3,000 and 5,000 Aboriginal people served in World War II, although exact numbers are impossible to determine. Officially Aboriginal people were not allowed to join, so many enlisted stating a false heritage (e.g. Indian).
On 27th of May 1967 Australians voted in a referendum overwhelmingly to amend the Constitution to allow the Commonwealth to make laws for Aboriginal people and include them in the census.
In 2016, the Australian Bureau of Statistics estimated that 798,365 Aboriginal people were in Australia, representing 3.3% of the total population.
Although "Indigenous" is used wildly, a significant number of Aboriginal people dislike the term as it is also used to refer to "indigenous plants". Remember, though, that views vary and not all Aboriginal people have the same preferences.
In 2019, the top five leading causes of death for Aboriginal people were heart disease (12%), chronic lower respiratory diseases (8%), diabetes (7%), lung cancer (6%) and self harm (6%). Figures are rounded.
One cannot judge an Aboriginal person purely from their appearance. That is a very colonial and outdated view. It is about heritage and identity – who people choose to be.