Medical Investigations 1 By mackynziehagen 500 Arteries and veins were discovered. Period: 500 to Dec 1, 1500 History of Medicine Period: 500 to Dec 31, 1500 Middle Ages Sep 11, 1000 Surgery has become a profession Period: Jan 1, 1300 to Dec 31, 1599 Renaissance Sep 11, 1347 Black Death Sep 11, 1452 Leonardo de Vinci Period: Jan 1, 1600 to Dec 31, 1899 Industrial Revolution Period: Jan 1, 1900 to Sep 4, 2015 Modern World Mar 2, 2022 Diffrence between smallpox and measles Mar 2, 2022 Small pox discovered