摘要
In ancient times,today's Xinjiang Uygur Autonomous Region was known as the Western Regions,signifying the western frontier of China.In 138 B.C.,Emperor Wudi of the Han Dynasty(202 B.C.-A.D.220)sent Zhang Qian as an envoy to establish contact with the Western Regions.In 60 B.C.,the Han formally included Xinjiang into Chinese territory by establishing the Western Regions Frontier Command.
