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17 December 2006
Aboriginal language had ice age origins

Aboriginal languages may be much older than people think, argues a linguistic anthropologist who says they originated as far back as the end of the last ice age around 13,000 years ago. This challenges existing thinking, which suggests Aboriginal languages developed from a proto-language that spread through Australia 5000 to 6000 years ago.
     The key to the new hypothesis is prehistoric Australia's single land mass 13,000 to 28,000 years ago, when New Guinea and Tasmania were still attached, says Dr Mark Clendon in the journal Current Anthropology. Clendon says the continent, known as Sahul, was relatively densely populated on the land bridge connecting northern Australia to New Guinea, now separated by the Arafura Sea. The other populated area was along what is now Australia's eastern seaboard.
     The two population groups were separated by a vast, cold, windswept, arid stretch of land that covered most of the continent, says Clendon, who was with the Batchelor Institute of Indigenous Tertiary Education when he published the research. The eastern group spoke a tongue that became what is known today as Pama Nyugen and includes languages like Pitjantjatjara, Yolngu and Warlpiri. And the Arafuran group spoke another language used today in northern Australia today.
     "What I'm suggesting is that Pama Nyugen and non-Pama Nyugen languages go back about 13,000 years to when there was a land bridge between New Guinea and Australia," he says. Until now, the reason why these two Aboriginal language groups are so different, each with a distinct grammar and vocabulary, has been a mystery.
     Around 11,000 years ago what was the Arafura plain was flooded by rising seas as the ice age ended. This caused the northern people to migrate into either New Guinea or to northern parts of Australia. Meanwhile, increased rainfall and warmer temperatures made inland parts of the continent more habitable and sparked a westward migration of eastern dwellers. This introduced their language group to more central areas of Australia. Both groups maintained their distinct languages, Clendon says.
     His hypothesis provides an alternative picture to the traditional view that 6000 years ago a single proto-language spread from the Gulf of Carpentaria around Australia, eventually giving rise to existing Aboriginal languages. Writing in a reply to Clendon's article, Professor Nicholas Evans, an expert in Aboriginal languages from the University of Melbourne, describes Clendon's hypothesis as "fresh and provocative". However, he says there are flaws in the argument, including that there is only weak evidence of similarities between southern New Guinea and northern Aboriginal languages. Evans says he remains to be convinced about Clendon's proposal.

Source: ABC Science Online (13 December 2006)

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