, the name of a plain surrounded by mountains, mentioned in the legend of the origin of the Mongols.
An associated legend in the Chinese Chronicle of Pei-shih (ed. in about 629) explains the origins of the Tʾu-chüeh as follows. This people lived on the shores of the Western Sea, Hsi-hai. They were massacred by a neighbouring people. Only a young boy survived, ¶ although wounded. A she-wolf who protected and fed him became pregnant by him. She led him through a grotto to a plain surrounded by mountains. There she gave birth to ten boys who were the ancestors…