Subcategories - Doctors, Physicians, Nurses
- Guy de Chauliac
- Harvey Williams Cushing
- Havelock Ellis
- Herophilus
- Hippocrates
- Horsfall Announces That Cancer Results from Alterations in the DNA of Cells
- Ignaz Philipp Semmelweis
- Imhotep
- Isaacs and Lindenmann Discover Interferons
- Jacobsen Introduces a Drug for the Treatment of Alcoholism
- Jonas Salk
- Joseph Lister
- Koch Isolates Microorganisms That Cause Tuberculosis and Cholera
- Landsteiner Discovers Human Blood Groups
- Landsteiner Identifies Rhesus Factor
- Lillian D. Wald
- Lister Promotes Antiseptic Surgery
- Maria Montessori
- McLean Discovers the Natural Anticoagulant Heparin
- Medical Researchers Develop and Test Promising Drugs for the Treatment of AIDS Patients
- Michael Servetus
- Moniz Develops Prefrontal Lobotomy
- New York Infirmary for Indigent Women and Children Opens
- Oliver Wendell Holmes
- Papanicolaou Develops the Pap Test for Diagnosing Uterine Cancer
- Paul Ehrlich
- Paul of Aegina
- Pedanius Dioscorides
- Practical Contact Lenses Are Developed
- Reed Establishes That Yellow Fever Is Transmitted by Mosquitoes
- Robert Koch
- Ronald Ross
- Rous Discovers That Some Cancers Are Caused by Viruses
- Rudolf Virchow
- Salk Develops a Polio Vaccine
- Samuel Hahnemann
- Schick Introduces the Schick Test for Diphtheria
- Schweitzer Is Awarded the Nobel Peace Prize
- Scientists Find Interferon, Drug That Fights Multiple Sclerosis
- Scientists Trace HIV to Chimpanzees
- Senning Invents Implanted Heart Pacemaker
- Shock Waves Are Used to Pulverize Kidney Stones
- Sir Macfarlane Burnet
- Sir William Osler
- Steenbock Discovers That Sunlight Increases Vitamin D in Food
- Suppression of Yellow Fever
- Surgeon General Koop Urges AIDS Education
- Susan La Flesche
- Susan La Flesche Picotte
- Suśruta, Indian Physician, Writes Medical Compendium
