A-mdo,
also called MDO-SMAD,
one of three regions into
which the area of central Asia inhabited by Tibetans is traditionally
divided. During the 7th to 9th centuries, the central Tibetan
kingdom was extended until it reached the Tarim Basin on the
north, China on the east, India and Nepal on the south, and
Kashmir on the west. The newly added dominions to the east and
northeast were called Mdo-Khams. The A-mdo region, constituting
the northeastern part of ethnic Tibet, reached from the Huang
Ho (river) northeastward to Mchod-rten dkarpo (now in Kansu
province, China). It passed under Ch'ing (Manchu) control in
1724 following the suppression of a Mongol revolt and was officially
incorporated into the Chinese provincial system as part of Tsinghai
province in 1928.
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