The Islamic Authorities placed a lot of value in medicine.
Baghdad had a hospital by AD 850 and doctors had to
pass medical examinations by AD 931 in order to practice.
Hospitals were later developed throughout the Islamic
world, with the most famous being those in Damascus
of Galen and Hippocrates theories
said that it was vitally important to observe patients
and make notes of all minor details. He was the first
man to observe and record the differences between smallpox
wrote the Canon of medicine (still used as a reference
book today). This developed some of Galens ideas
and was used with aspiring doctors in both Arabia and
later in the West.
doctors and chemists invented distillation and sublimation.
They also developed the use of drugs such as senna,
musk and camphor.