In the past long-term process of development of acupuncrology

there is a very long period of needling meridian therapy before needling acupoint therapy. Through systematic investigation on the ancient documents

it is easily found that quite a lot of acupoints with which we are familiar nowadays are derived from many sites for puncturing meridians in quite a long time ago. Due to that the first classical acupoint works Ming Tang Meridians is a systematic summary of the acupoint documents published by various schools in different periods before Han Dynasty

acupoints recorded in this book still present some characters of different ages

some of them still retain some traces of meridians

showing the character of unfinished transitional period from meridians to acupoints. Because not knowing the process of acupoints developed from meridians and the acupoint concepts derived from different sources

the later ages' and even modern medical workers don' t understand some words about certain acupoints appeared in ancient documents

exhibiting big divergence in locating some acupoints