When did Aboriginal people first arrive in Australia?

Many Aboriginal Australians would say with conviction that they have always been here. Their ancestors and traditional learnings tell them of this history, and their precise place within it.

De Beers to sell synthetic diamonds—here's how they're made

The world's biggest diamond company, De Beers, recently announced it would start selling synthetic diamond gemstones for the first time in its 130-year history. Artificial diamonds have been manufactured since the 1950s but ...

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