À quand remonte l'acupuncture?

One of the oldest chinese books, ‘The Classic of Mountains and Seas’, mentions needles made from stone called « bian » used to cure illness. ‘The Classic of Internal Medicine’ later mentions that these stone needles originated in the east. In Korea, east of China, in 1929, stone and bone needles were found dated to 3000 B.C. Chinese archeologists discovered stone bian needles at a neolithic site in Inner Mongolia (Toudaowa) which they estimate to be between 4000 and 10,000 years old. (Peter Eckman 1996)