There is an interesting statement in the _Kwoh Yü_, an ancillary history of these times, but touching more upon personal matters, usually considered to have been written by the same man that first expanded Confucius' annals, to the effect that in 489 B.C. (when Confucius was wandering about on his travels, a disappointed and disgusted man) the King of Wu inflicted a crushing defeat upon Ts'i at a spot not far from the Lu frontier, and that he captured "the national books, 800 leather chariots, and 3000 cuirasses and shields." If this translation be perfectly accurate, it is interesting as showing that Ts'i did possess _Kwoh-shu_, or "a State library," or archives. But unfortunately two other histories mention the capture of a Ts'i general named Kwoh Hia, _alias_ Kwoh Hwei-tsz, so that there seems to be a doubt whether, in transcribing ancient texts, one character (_shu_) may not have been substituted for the other (_hia_). Two years later the barbarian king in question entered Lu, and made a treaty with that state upon equal terms. Shortly after this date, the Chinese adviser who brought about the conquest of Wu by the equally barbarous Yiieh, had occasion to send a "closed letter" to a man living in Ts'u. When we come to later times, subsequent to the death of Confucius, we find written communications more commonly spoken of. Thus, in 313, Ts'i, enraged at the supposed faithlessness of Ts'u, "broke in two the Ts'u tally" and attached herself to Ts'in instead. This can only refer to a wooden "indenture" of which each party preserved a copy, each fitting 'in, "dog's teeth like," as the Chinese still say, closely to the other. A few years later we find letters from Ts'i to Ts'u, holding forth the tempting project of a joint attack upon Ts'in; and also a letter from Ts'in to Ts'u, alluding to the escape of a hostage and the cause of a war. In the year 227, when Ts'in was rapidly conquering the whole empire, the northernmost state of Yen (Peking plain), dreading annexation, conceived the plan of assassinating the King of Ts'in; and, in order to give the assassin a plausible ground for gaining admittance to the tyrant's presence, sent a map of Yen, so that the roads available for troops might be explained to the ambitious conqueror, who would fall into the trap. He barely escaped.