Medicine in the Ancient and Medieval World

With all the obstacles we have faced over the millennia, it is amazing we have lasted this long as a species. One factor that has aided humanity over the eons has been the development of medical techniques and care. Each civilization/culture has had a different approach to the practice of medicine with varying results. Your task is to research at least two but no more than three cultures/civilizations/belief systems in terms of how they have treated their ill and infirm. What methods were used? What is the nature of medical knowledge? From this initial research, come up with a thesis that addresses how cultures/civilizations/belief systems have addressed the issue of “healing themselves.”
Also Sources need to be from academic journals. And need to provide a works cited page. Thank You