Ancient Aboriginal Australians Left Behind Artifacts From 51,000 Years Ago

Newly discovered artifacts are evidence of humans living in Australia between about 46,000 and 51,000 years ago, researchers say, making them some of the earliest traces of aboriginal settlement there.

The artifacts included what was left of a shellfish meal and were found in a cave on Barrow Island off the coast of northwestern Australia, according to a study in the journal Quaternary Science Reviews. They paint a picture of a society that adapted to its surroundings and made use of the resources available.

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While it’s more isolated now, at the time the ancient aboriginal people migrated to Australia and up until several thousand years ago, Barrow Island was a coastal desert connected to the mainland by a land bridge that is now underwater.

“Archaeological deposits … reveal some of the oldest evidence for Aboriginal occupation of Australia, as well as illustrating the early use of marine resources by modern peoples outside of Africa,” according to the study. “First occupation occurs between [51,100 and 46,200 years ago], overlapping with the earliest dates for occupation of Australia.”

Scientists have found artifacts like dietary remains and stone pieces that show the long history of the people who first migrated to and settled Australia. Photo: University of Western Australia

In the limestone Boodie Cave, researchers found charcoal, shell and other animal remains and stone artifacts, the researchers say, and the thousands of items the early humans left behind show they adapted to a changing, arid environment. The hunter-gatherers started to use marine creatures in their diet 42,500 years ago, the earliest known time this happened in Australia, and “despite fluctuating sea levels and dramatic extensions of the coastal plain,” the people kept using those marine resources.

“Although the coastal areas where the first inhabitants of our continent lived now lie under water, the team…

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