Of the more than six thousand languages now spoken on the planet, two become extinct each week, and by most estimates half will fall silent by the end of the century.6 A United Nations report claims that nine-tenths of the languages now spoken will become extinct in the next hundred years.7 Most endangered languages have a very small number of speakers. Several are disappearing tribal languages spoken in the Amazon rainforest, the Andes Mountains, or the Siberian taiga. Perhaps a thousand distinct languages are spoken in Papua New Guinea, many by tribes of only a few hundred members. Eighteen
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