Han Dynasty
L:44cm,w:35.5cm,h:3 1.5cm.Burial object,with four walls and two lavatories on high tamped—earth platforms at the sides.Beneath the platforms and inside the wall is a pigsty.Inside the pigsty are a sow feeding her piglets and a feeding trough.These reflect the attention paid to environmental hygiene at that time.(Collection of Chinese Museum for History of Medicine)
