The name of a river noted in the historical records in connection with Xiongnu. De Groot and G.Sukhbaatar say that the Anhou River is the present day Orkhon River, while L.A.Borovkova says that was another small river. This name was first noted in history from the period of the Han-Xiongnu war in 90 BCE. The Xiongnu Chanyu moved the subjects to the north of the Qi Jiu River in the north of Zhao Xin Cheng city and came back together with his elite cavaliers to wait for the Han army crossing the Guce River, in the east of the Anhou River. Later, the Northern Xiongnu Chanyu was settled down in the west part of the Anhou River for a while at end of the 80s CE.
Animal Offering Custom
Historical records and archeological materials providing plenty of information that Central Asian nomads not only constructed the burial structures for their deceased but also built up particular and separate structures for offering and sacrifices. The Mongol word “Khoilogo” designating the meanings “to, offer, to sacrifice and to let accompany the death” is explained in different ways. Of them, the explanation making the interposing with the word “Yavuulakh” (to let someone go) could be nearer to the truth. According to the research, they made an offering and let the dead accompanied by offering animals since the Bronze Age. Consequently, it is proof that animal husbandry became the main economic activity of the ancient nomads in Mongolia. Also, all the different type and time period graves like Kerekshur, Slab burial, Pazyryk, Xiongnu elite, and ordinary people graves, Turkic, Uighur, and Middle Age tombs, have been followed by the animal offering rituals all the ages through keeping the tradition on one hand but being renewed on the other hand. To some degrees, the animal offering custom has been handed down to the present Mongolian burial custom.