The famous Song DynastyChinese judge and magistrate Bao Qingtian writes a memorial to the throne, warning about governmental corruption and a foreseeable bankruptcy of the Chinese iron industry, if increasingly poorer families continued to be listed on the register for iron-smelting households (while more rich households avoid being listed for fear of financial calamity). Apparently the government heeds the warning, and produces more iron product by the year 1078 than China ever had before.