Qiangic languages
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The Qiangic languages are a group of Tibeto-Burman languages spoken in Sichuan and Yunnan, China. These languages were not well-known to Western scholars until relatively recently. Some Qiangic languages, like those in the rGyalrong (Jiarong)-Ergong subgroup, feature complex initial consonant clusters, similar to Written Tibetan. Interestingly, some Qiangic languages are tonal, while others are not, offering a unique opportunity to study how tones develop. It is also suggested that Ersu/Tosu, a Qiangic language, might be a descendant of the extinct Xixia (Tangut) language.1
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