Among the many proofs which may be cited of community of origin between the Asiatics and certainly a large proportion of the American population is the practice of scalping enemies, quoted by Herodotus as prevalent amongst the Scythians, and universally existing amongst all tribes of North American Indians; the discovery of jade ornaments amongst Mexican remains, and the general esteem in which that material is held by the Chinese; the use of the Quipos among the Peruvians, and the assertion in the _I-king_, or Book of Change, one of the oldest of the Chinese Classics, that "The ancients knotted cords to express their meaning, but in the next age the sages renounced the custom and adopted a system of written characters;"[131] the discovery of the meander pattern among Peruvian relics, and the common use of this ornamentation on Chinese vases and tripods, at dates long preceding the Trojan era, in which it is commonly supposed to have originated; the similarity of the features of Chinese, and other Mongols, with those of various Indian tribes; the resemblance of masks and various other remains to Chinese patterns discovered recently by Desirée de Charnay in Central America; and the reserve and stolid demeanour of both races. A good illustration of this is afforded by the story told of the celebrated statesman Sieh Ngan (A.D. 320-385), in Mayer's _Chinese Reader's Manual_; it could be imagined to apply to any Indian sachem. It is related of Sieh Ngan that, at the time when the capital was menaced by the advancing forces of Fukien, he sat one day over a game of chess with a friend, when a despatch was handed to him, which he calmly read and then continued the game. On being asked what the news was, he replied: "It is merely an announcement that my young people have beaten the enemy." The intelligence was, in fact, of the decisive rout of the invaders by the army under his brother Sieh She and his nephew Sieh Hüan. Only when retired within the seclusion of his private apartments did he give himself up to an outburst of joy. The very expression "my young people" is the equivalent of "my young men" which the Indian chief would have employed. A singular custom prevails among the Petivaces, an Indian tribe of Brazil.[132] "When they are delivered of a child, and ought to have all the ceremony and attendance proper to a lying-in woman, the husband presently lies down in his hammock (as if he had been brought to bed himself), and all his wives and neighbours come about and serve him. This is a pleasant fancy indeed, that the woman must take all the pains to bring the child into the world, and then the man lie down and gruntle upon it." Compare with this the account given by Marco Polo of the same custom prevalent among the Miau-tze, or aborigines of China, as distinguished from their present occupants. Their reduction to submission is recorded in the early works on the country.