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When did Tasmania become separated from mainland Australia?
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Australian Aboriginal peoples
Aboriginal people from Galiwnku Island gathering to watch the proceedings at which Prime Minister Kevin Rudd formally apologized to the Aboriginal peoples of Australia for their mistreatment under earlier Australian governments, February 2008.
Tasmania became separated from mainland Australia approximately 10,000 years ago, when a general rise in sea level flooded the Bass Strait. Prior to this, during the peak of the latest glacial phase about 18,000 years ago, Tasmania was joined to the mainland by dry land.12