History of Medicine By trinitylundgren Period: 500 to 1300 Middle Ages 900 Rhazes Discovered the differences between small pox and measles Period: 1301 to 1700 Renaissance 1660 Printing Press allowed for publications of medical discoveries Period: 1701 to 1899 Industrial Revolution Period: 1900 to 1999 Modern World Period: 2000 to 2018 21st Century