... products subject to taxation, namely grain or mulberry leaves for silk production. But the village common had been and remained tax-free because it did not produce taxable things. While land-holdings on the farmland were legally restricted in their size, the "gardens" were unrestricted. Around A.D. 500 the ruler allowed high officials to have manors of three hundred mou size, while in the north a family consisting of husband and wife and children below fifteen years of age were allowed a farm ... — A history of China., [3d ed. rev. and enl.] • Wolfram Eberhard