I cant answer this sorry ):
It is not really certain as to when the writing systems in China started but there are evidence that during the Shang dynasty, pictographs and ideographs were already inscribed in bones although the system was already quite complex that it could have well originated many years before.
Answer:
The summary is The range of doctors would not have proceeded distant in the Islamic world outwardly the responsibility of Muslim doctors who made various improvements and innovations that have expanded our awareness of health-care. Muslim interventionists, for example, were among the leading to distinguish among smallpox and measles, as great as diagnosing the plague, diphtheria, leprosy, rabies, baker’s vesicle, diabetes, gout, and hemophilia. While Europe still considered that epilepsy was affected by demonic possession, Muslim doctors had previously found an experimental reason for it. Muslim doctors were also founders in convoying amputations and cauterization. They further discovered the passage of blood, the use of being gut for stitches and the value of ethanol as a medicine.
