The Huns left practically no written records. There is no record of what happened between the time they left the Mongolian Plateau and arrived in Europe 150 years later. The last mention of the northern Xiongnu was their defeat by the Chinese in 151 at Lake Barkol, after which they fled to the western steppe at Kangju (centered on the city of Turkistan in Kazakhstan). Chinese records between the 3rd and 4th centuries suggest that a small tribe called Yueban, remnants of Northern Xiongnu, was distributed about the steppe of Kazakhstan.