1899. Fu Hsi, the first of the Five Emperors of the legendary period, is said to have been miraculously conceived by his mother who, after a gestation of twelve years, gave birth to him at Ch'eng-chi in Shenshi. He taught his people to hunt, to fish and to keep flocks. He showed them how to split the wood of t'ung tree, and then how to twist silk threads and stretch them to form rude musical instruments. From the markings on the back of a tortoise, he is said to have constructed the Eight Diagrams from which were developed the whole system of I Ching.