The state of Wensu 溫宿 (Türkic name Uš) was located on the northern route of the Silk Road, in the region of modern Wensu, Xinjiang. It declared its tributary status towards the Han dynasty 漢 (206 BCE-220 CE) in the early 1st centry BCE and was administered by the Protectorate of the Western Territories (xiyu duhufu 西域都護府). There were roads of communication accross the Tianshan Range 天山 into the land of the Wusun 烏孫. In the late 2nd century CE it was conquered by the state of Gumo 姑墨. During the Northern Wei period 北魏 (386-534) it belonged to the state of Qiuci 龜茲. From the late Tang period on the name of the place changed to Yukuang 于況, Woyi 倭亦, Wuyi 烏亦 and Uš 烏什 or Učturpan.