This people have no need of baggage or provision wagons; their herds of sheep, cows, horses, and other animals follow them on their marches, and they eat meat and nothing else. Their horses do not know barley, but they tear up the ground with their hoofs and live on the roots. As to their faith, the Tatars worship the sun at the time of its rising. They do not regard anything as forbidden, and eat all animals, even dogs and pigs. Marriage is unknown to them, but many men come to a woman, and when a child is born it does not know its father.” Similar descriptions are met with in the narratives of Europeans who knew the Mongols in the days of their power. JENGHIZ KHAN; THE TATAR INVASION It was among this rude nomad people that Jenghiz Khan was born in 1162. The son of the chief of a tribe dwelling at the mouths of the Onon and the Ingoda, affluents of the Amur, Jenghiz was far removed from the focus of central Asian political life, and his power was originally very small. The first forty years of his life were spent in struggles with the surrounding peoples; it is even said that for ten years he was in captivity with the Nyûché, or Chûrché (the Manchurian rulers of northern China known under the name of the dynasty of Kin), during which time he became acquainted with Chinese customs and manners, and also with the weakness of the rulers of China. Having conquered various Mongolian tribes, he proclaimed himself emperor at a general assembly of the princes, which was held at the sources of the river Onon (1206). “By thus taking the imperial title,” says V. P. Vasiliev, “he gave perfect expression to the purely Chinese conception that, as there is only one sun in the heavens, so there must be only one emperor on earth; and all others bearing this title, all states having any pretensions to independent existence thereby offend the will of heaven and invite chastisement.” His successes in Mongolia are explained by his surpassing military talent, the system of purely military organisation adopted by him, and by the fact that he gave places in his service to all those who were gifted, of whatever race they might be.[11] Jenghiz Khan’s conquests advanced rapidly; in 1206 he devastated the kingdom of Tangut (in southern Mongolia) and in 1210 he commenced a war with the Nyûché, ruling in northern China. The war dragged on, and meanwhile the shah of Khuarezm (Bokhara) gave offence to Jenghiz Khan by slaying the Mongolian ambassadors. Leaving his captains in China, the Mongolian khan marched to Bokhara (1219), whence, partly in pursuit of the shah and partly led on by the passion for pillage, the Mongolian troops directed their way to the west, doubled the southern shore of the Caspian Sea, crossed the Caucasus, and penetrated into the steppes of the Polovtsi. [Sidenote: [1223-1228 A.D.]]