1547: The Problem of No Proto-Sino-Tibetan Mar 9, 2019

While the Sino-Tibetan language family is the second-most widely spoken language family, it does not have an accepted proto-language created from it in the same way as has been done for the Indo-European language family. On the surface this might not sound like a problem, but the issue is that while lower branches of the family have been reconstructed, such as Lolo-Burmese, there is still not a conclusion as to which languages belong to certain families, or which are isolates. This means that many efforts to classify certain subgroups are really just estimates that might vary from study-to-study.

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