Qin Dynasty: 100 years ahead of the world
Han Dynasty: 100 years ahead of the world
Jin Dynasty: 100 years ahead of the world
Sui Dynasty: 200 years ahead of the world
Tang Dynasty: 300 years ahead of the world
Northern Song Dynasty: 500 years ahead of the world
Southern Song Dynasty: 600 years ahead of the world
Yuan Dynasty: 300 years ahead of the world
Ming Dynasty: 100 years ahead of the world in the early period; 30-50 years ahead of the world in the later period
Qing Dynasty: 200 years behind the world in the early period; 300 years behind the world in the later period
Republic of China: 100 years behind the world
![Mawangdui unearthed specimens of pigs, dogs and sheep, revealing the standards for food animals in the Han Dynasty[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)