Al-Zahrawi (936-1013) was responsible for setting the foundation of modern surgery, the creation of 200+ surgical instruments (many of which are still used today), the discovery of ectopic pregnancies (which can often be fatal to the mother), redefining the doctor-patient relationship for the better, discovering methods for the ligaturing of blood vessels, describing the nature of Haemophilia (uncontrolled bleading), and inventing medicinal sublimation and distillation. This man revolutionized science, especially when it came to health care!