Long before this, the philosopher-statesman Kwan-tsz of Ts'i had so developed the agriculture, fisheries, trade, and salt gabelle, and had governed the country in such a way that his State, hitherto of minor importance, soon took the lead amongst the Chinese powers for wealth and for military influence. His classification of the people was into scholars, artisans, traders, and agriculturalists. He is generally credited with having introduced the "Babylonian woman" into the Ts'i metropolis, in order that traders, having sold their goods there, might leave as much as possible of their money behind in the houses of pleasure. There are many accounts of the luxury of this populous city, where "every woman possessed one long and one short needle," and where a premium levied upon currency, fish, and salt was applied to the relief of the poor and (!) to the rewarding of virtue. Kwan-tsz also maintained a standing army, or perhaps a militia force, of 30,000 men; but he was careful so to husband his strength that Ts'i should not have the external appearance of dominating; his aim was that she should rather hold her power in reserve, and only use it indirectly: as we have seen, his master was, in consequence of Kwan-tsz's able administration, raised to the high position of the first of the Five Protectors. From this it will be plain that there was considerable commercial activity in China even before the time of Confucius: there was quite a string of fairs or market towns extending from the imperial reserve eastwards along the Yellow River to Choh-thou (still so called, south of Peking), which was then the most northernly of them: apparently each considerable state possessed one of these fairs. The headwaters of the River Hwai system were served by the great mart (now called Yii Chou) belonging to the state of Cheng. As with our own histories, Chinese annals consist chiefly of the record of what kings and grandees did, and mention of the people is only occasional; and, even then, only in connection with the policy of their leaders.