sentences:  Particularly noteworthy among them were twelve human statues, each said to have weighed a thousand "dan" (picul).Near the end of the Han dynasty, around 190 AD, Dong Zhuo melted down nine of the statues along with other metal items and recast them into coins to finance a personal castle in Mei County near Chang'an.All copper cash became devalued since the new coins did not weigh the same, had no defined edge, or stated value.