(from the article `China`) In the northwest the Tangut (Pinyin: Dangxiang), a Tibetan-speaking branch of the Qiang, inhabited the region between the far end of the Great Wall ... The Tsinghai region was later ruled by Tangut leaders who established a state called Hsi Hsia, based near Koko Nor, in 1038. Genghis Khan began his ... ...b...