medical history By carter lambeth 200 Galen;tracheotomy Period: 500 to Dec 31, 1300 middle ages 900 Rhaze finds the difference between small pox and measles 925 medical care becomes regulated 1300 Islamic hospitals start healthcare for the sick Period: Jan 1, 1301 to Dec 31, 1700 renaissance 1350 Christians monasteries founded to treat the ill 1600 scientific method begins 1665 Robert Hooke makes reflective microscope Period: Jan 1, 1701 to Dec 31, 1899 industrial revolution Period: Jan 1, 1900 to Dec 31, 1999 modern world Period: Jan 1, 2000 to Sep 5, 2019 21st century