Song Dynasty Chinese judge and magistrate Bao Zheng (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 continue 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 by 1078 will produce more iron than China ever had before.