似曾是桥上轻雨伞开
Li Shizhen was a famous medical scientist in Ming DynastyHe was born in 1518He wrote a famous book “Ben Cao Gang Mu” , which is a collection of Chinese herbsIt included 2000 Chinese herbs with millions of charactersHe visited mountains , called on ordinary people , tasted different kinds of herbs and even did experiments on himselfIt took him 37 years to finish the bookThe book is considered to be a great contribution to the development of Chinese medicine