On this interesting subject Father Gaubil, in his valuable work on Chinese Chronology, says: "One thing is certain ... the books containing the geographical surveys and the departmental records were not burnt ... though the minister Lis-sse, like the Emperor himself, wished the people to remain ignorant, and know nothing about how the country was governed by the earlier kings, or to hear of the great and virtuous men of the past, or of the precepts left behind by them." It was this same minister, the Father tells us, who introduced the salutary reform of the use of one character only throughout the Empire, whereas before his time several different kinds of letters were employed in writing. This alphabet was known as the _li-chu_, and is supposed to be identical with that of the present day. [Illustration: FIG. 47.--BURNING OF MANDARINS AND HISTORICAL DOCUMENTS, BY ORDER OF SHIH-KWANG-TI. (_Univers Pittoresque._)] It was indeed fortunate that so many important manuscripts were saved from the general holocaust the sacrilegious Emperor had ordered, for had the _Shu-King_ been destroyed, it would have been difficult to give any real account of the China of the past. This most celebrated and authentic of ancient books is supposed to have been begun about the year 2266 B.C., in the reign of the great Yao, brother of that King Ti-Ko, who introduced the polygamy still practised in China. This book, or rather collection of books, is to the Celestials what the Bible is to the Jews, the Koran to the Mahomedans, the Law-Book of Manu to the Hindus, and the Gospel to Christians. It is the very fountain-head of Chinese law, and not to be acquainted with its contents is to be unworthy of holding any place of trust in the Empire. Its authenticity is absolutely established, for it is well known that ever since the year 2637 B.C. there has been a historic Tribunal in Pekin, whose members are chosen from amongst the most distinguished literati of the whole Empire. Once appointed, these scholars can never be removed from office, and it is their duty to register daily everything of importance that occurs in any town, including meteorological and other natural phenomena, as well as what may be called purely historical events, such as the revolts, sieges, fires, and other misfortunes to which humanity is subject. [Sidenote: THE SHU-KING]