Last year, archaeologists unearthed 920 bamboo strips at a construction site in the south-western city of Chengdu in China, containing recipes for treating ailments that date back 2,000 years.
Last year, archaeologists unearthed 920 bamboo strips at a construction site in the south-western city of Chengdu in China, containing recipes for treating ailments that date back 2,000 years.