Health Occupations By lepakemi000 Period: 400 to Jan 1, 1400 Dark and Middle Ages Period: Jan 1, 1400 to Jan 1, 1650 The Renaissance Jan 1, 1489 Leonardo Da Vinci Disects Corpses Period: Jan 1, 1665 to Jan 1, 1666 The Great Plague Jan 1, 1760 Benjamin Franklin invented bifocals Sep 26, 1776 Revolutionary War May 14, 1796 Edward Jenner discovered vaccination for smallpox Jan 1, 1816 Rene Laennec invented the Stethoscope Jan 1, 1848 Public Health Act Jan 1, 1849 Elizabeth Blackwell first woman qualified as doctor Jan 1, 1859 Louis Pasteur discovers pasteurization Jan 1, 1860 Joseph Lister was first to use antiseptic Period: Apr 12, 1861 to May 10, 1865 Civil War Jan 1, 1881 Clara Barton founded the American Red Cross Jan 1, 1887 First Contact Lenses Jan 1, 1895 William Roentgen discovered x-rays Jan 1, 1899 Felix Hoffman discovers asprin Jan 1, 1910 Isolated Radium by Marie Curie Period: Jul 28, 1914 to Nov 11, 1918 World War 1 Jan 1, 1928 Sir Alexander Fleming discovered penicillin Jan 1, 1929 Discovery of penicillin Period: Sep 1, 1939 to Sep 2, 1945 World War 2 Jan 1, 1952 Jonas salk developed the polio vaccine Jan 1, 1967 First Heart Transplant Jan 1, 1975 CAT scan invented by Robert S. Ledley Jan 1, 1978 First Test Tube Baby Born Jan 1, 1980 Smallpox is eradicated Jan 1, 1983 HIV, which causes AIDS, is identified Jan 1, 1996 Dolly The Sheep Becomes First Clone Jan 1, 2006 First Vaccine to target a cause of cancer Mar 2, 2022 Rhazes identifies smallpox
