History of Medicine By a.clifford498 Period: 500 to Dec 31, 1300 Middle Ages Oct 3, 900 Rhaze discovered differences between smallpox and measles Oct 3, 1300 Islamic hospitals; health care for the sick Period: Jan 1, 1301 to Dec 31, 1700 Renaissance Oct 2, 1400 Frenchwoman Jacoba Felicie tries to practice medicine but is denied Oct 3, 1600 Use of scientific method begins Oct 3, 1665 Robert Hooke reflective microscope 1673 Antonie Van Leeuwenhoek describes bacteria 1700 Francis Bacon uses microscope to discover plague fleas Period: Jan 1, 1701 to Dec 31, 1899 Industrial Revolution 1786 Edward Jenner discovered 1st vaccination 1822 Louis Pasteur (microbiology) pasteurization of milk 1827 Joseph Lister- practice of medical aspects 1843 Robert Koch- discovery of pathogens 1847 Ignaz Semmelweis shows importance of hand washing 1854 John Snow stops outbreak of cholora 1900 Buboric plague hits San Francisco Period: Jan 1, 1900 to Dec 31, 1999 Modern World 1997 Marie Curie discovers science of radioactivity Period: Jan 1, 2000 to Sep 5, 2019 21st Century