History of Medicine By Seth Carter Period: 500 to 1300 Middle Ages 900 Rhazes Discovered difference between measles and smallpox Period: 1301 to 1700 Renaissance 1665 Reflective Microscope Reflective microscope invented. Allowed study of microorganism like bacteria Period: 1701 to 1899 Industrial Revolution Period: 1900 to 1999 Modern World Period: 2000 to 2018 21st Century
