*	Wei	220265 AD
*	Shu Han	221263 AD
*	Wu	222280 AD

*	Western Jin	265316 AD
*	Eastern Jin	317420 AD

Southern Dynasty 420 - 589 AD (Carried over from Eastern Jin and ruled Southern China) * Song 420479 AD * Qi 679502 AD * Liang 502557 AD * Chen 557589 AD

Northern Dynasty 386 - 581 AD (Ruled Northern China) * Northern Wei 386534 AD * Eastern Wei 534550 AD * Western Wei 535556 AD * Northern Qi 550577 AD * Northern Zhou 557581-AD

About the Chinese Middle Ages
Renowned French, Chinese historian Jacques Gernet called the period from 200581 AD, the Chinese Middle Ages. The Han Dynasty ended with the military taking over China and splitting the country into three kingdoms.

The empire of the Three kingdoms (250 A.D.)

During this time, the Northern Chinese were considered to be more militant and less sophisticated than their Southern counterparts. At the same time, Buddhism was rapidly spreading throughout all parts of China. The Northern Wei especially welcomed the religion's presence because it was seen as a way to consolidate power. Buddhism also led to the influx of Indian culture into China.

As a result, knowledge concerning mathematics, astronomy and medicine flourished during this period. Many monks had medical knowledge because it was a necessity when making long pilgrimages to be able to administer medical care when no doctors were available.

Development of Physician Education

During this time, medical education was elevated to a higher standard. In 443 AD, Qin Cheng-zu, an imperial medical officer, petitioned Emperor Wen of the Song Kingdom to appoint physicians to teach medical students. It was the first time the government assigned teachers to educate students on Chinese medicine. Although the Imperial Academy was established in 124 BC, it mainly focused on teaching subjects such as literature, philosophy and administration. Little emphasis was placed on medicine. However, by 493 AD, the Imperial Academy had expanded to include lectureships and chairs for teaching Chinese medicine.

Acupuncture and Moxabustion

Acupuncture, known as zhenjiu in Chinese, was widely accepted by the Chinese population. Its use may have originated out of the Chinese fascination of relieving referred pain, defined as pain that manifests in one part of the body but originating from somewhere else. Many of the physicians mentioned previously such as Qin Yueren, Zhang Zhongjing, Hua Tuo, and Fan A used this therapy when treating patients. The Lingshu (The Vital Axis), a book from the Huang Di Nei Jing (The Yellow Emperor's Classic of Internal Medicine) has a whole section dedicated to the use of accupuncture.

Meridian with acupuncture points

The man who wrote what is considered the bible of accupuncture and moxibustion was Huangfu Mi (215282 AD). His biggest contribution was a book called Zhenjiu Jiayijing (The ABC of Acupuncture and Moxibustion), which is considered to be the earliest complete reference guide to acupuncture and moxibustion. This book starts by discussing TCM concepts involving anatomy, and physiology and progresses to describing the theory of meridians. In addition, it outlines the location of the acupuncture points, discusses the techniques used to manipulate the needles, and describes the clinical applications and therapeutic benefits of both acupuncture and moxibustion.

Wang shuhe, the Promoter of Pulsing

Wang Shuhe (265317 AD) wrote the Maijing (Pulse Classic or Manual on the Pulses), which was a compilation of all the knowledge on pulse diagnosis up to this point in history. In Chinese medicine feeling the pulse is perhaps the most important examination technique used when diagnosing a patient because how a pulse feels indicates different illnesses. In this book, 24 different kinds of pulses were identified.

Taoist doing experiments

Alchemists can be considered the first pharmacists. Their popularity arose out of the Taoists quests for longevity. In their search for the magic elixir of life, alchemists would experiment with different methods of combining chemicals and minerals to create new medicines or tonics. Ge Hong (281341AD)

Zhouhou Jiuzufang (Emergency Prescriptions)

Materia Medica

Another important figure in the development of Chinese medicine was Tao Honjing (456536 AD), who was especially renowned for his commentaries on the Shennong Bencaojing (Classic of Herbal Medicine). He increased the number of listed herbal medicines in the Shennong Bencaojing (Classic of Herbal Medicine) from 365 to 730, and furthered the information on the herbs' nature, location, and time of harvesting. The new book was entitled Shennong Bencaojing Jizhu (Annotations to the Classic of Herbal Medicine). It dominated the pharmaceutical literature until the middle of the 7th century A.D. He also completed Ge Hong's Zhouhou Beijifang (Emergency Prescriptions), which was re-titled Zhouhou Baiyi Fang (101 Emergency Prescriptions).

Wall picture of Buddhist caves - people used water and fire to prevent contagious diseases

These prescriptions and those of other alchemists and Chinese doctors were often circulated using handwritten copies. Sometimes they would also be carved into the stone caves that served as Buddhist sanctuaries. One example is the Buddhist caves of Longmen (also called Dragon's Gate located south of Loyang in Henan province). There you can find approximately 100 prescriptions carved into the walls near the end of the 6th century AD Ge Hong's use of dichroa febrifuga for the treatment of malaria is an example of one such prescription carved at this location.

Other Important Medical Contributions

Other important Chinese medical works of this time are Lei Xiao's (born in 15 AD) Leigong Baozhilun (Treatise on the Preparation of Lei Gong's Remedies) and Liu Juanzi Guifang, the earliest known treatise on Chinese surgery. Lei Gong Baozhilun (Treatise on the Preparation of Lei Gong's Remedies) focused on the vegetable-based medicines unlike Ge Hong's work that focused on chemical remedies to cure illnesses. In addition, this book outlines the various ways of preparing these medicines such as cooking them over an open fire , steaming or boiling them . The later book, Liu Juanzi Guifang, provides a wealth of information on the experiences gained up to the fifth century in the treatment of wounds caused by metal instruments and of ailments affecting the skin such as boils, anthrax and abscesses. The use of mercurial ointment is mentioned for curing certain skin conditions.