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Nicolas Wade, Phonetic Clues Hint Language Is Africa-Born
A researcher analyzing the sounds in languages spoken around the world  has detected an ancient signal that points to southern Africa as the  place where modern human language originated.   
The finding fits well with the evidence from fossil skulls and DNA that  modern humans originated in Africa. It also implies, though does not  prove, that modern language originated only once, an issue of  considerable controversy among linguists.
The detection of such an ancient signal in language is  surprising. Because words change so rapidly, many linguists think that  languages cannot be traced very far back in time. The oldest language  tree so far reconstructed, that of the Indo-European family, which  includes English, goes back 9,000 years at most.
Quentin D. Atkinson, a biologist at the University of Auckland in New  Zealand, has shattered this time barrier, if his claim is correct, by  looking not at words but at phonemes — the consonants, vowels and tones  that are the simplest elements of language.  Dr. Atkinson, an expert at  applying mathematical methods to linguistics, has found a simple but  striking pattern in some 500 languages spoken throughout the world: A  language area uses fewer phonemes the farther that early humans had to  travel from Africa to reach it.
Some of the click-using languages of Africa have more than 100 phonemes,  whereas Hawaiian, toward the far end of the human migration route out  of Africa, has only 13. English has about 45 phonemes.
This pattern of decreasing diversity with distance, similar to the  well-established decrease in genetic diversity with distance from  Africa, implies that the origin of modern human language is in the  region of southwestern Africa, Dr. Atkinson says in an article published on Thursday in the journal Science.
Language is at least 50,000 years old, the date that modern humans  dispersed from Africa, and some experts say it is at least 100,000 years  old. Dr. Atkinson, if his work is correct, is picking up a distant echo  from this far back in time.

Nicolas Wade, Phonetic Clues Hint Language Is Africa-Born

A researcher analyzing the sounds in languages spoken around the world has detected an ancient signal that points to southern Africa as the place where modern human language originated.  

The finding fits well with the evidence from fossil skulls and DNA that modern humans originated in Africa. It also implies, though does not prove, that modern language originated only once, an issue of considerable controversy among linguists.

The detection of such an ancient signal in language is surprising. Because words change so rapidly, many linguists think that languages cannot be traced very far back in time. The oldest language tree so far reconstructed, that of the Indo-European family, which includes English, goes back 9,000 years at most.

Quentin D. Atkinson, a biologist at the University of Auckland in New Zealand, has shattered this time barrier, if his claim is correct, by looking not at words but at phonemes — the consonants, vowels and tones that are the simplest elements of language.  Dr. Atkinson, an expert at applying mathematical methods to linguistics, has found a simple but striking pattern in some 500 languages spoken throughout the world: A language area uses fewer phonemes the farther that early humans had to travel from Africa to reach it.

Some of the click-using languages of Africa have more than 100 phonemes, whereas Hawaiian, toward the far end of the human migration route out of Africa, has only 13. English has about 45 phonemes.

This pattern of decreasing diversity with distance, similar to the well-established decrease in genetic diversity with distance from Africa, implies that the origin of modern human language is in the region of southwestern Africa, Dr. Atkinson says in an article published on Thursday in the journal Science.

Language is at least 50,000 years old, the date that modern humans dispersed from Africa, and some experts say it is at least 100,000 years old. Dr. Atkinson, if his work is correct, is picking up a distant echo from this far back in time.

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