• 500

    Alcmaeon

    Distinguished veins from arteries
  • Period: 500 to 1300

    Middle Ages

  • 900

    Rhazes

    Rhazes
    Discoverd difference between meseals and small pox.
  • 1010

    Avicenna

    Wrote The book of Healing and The Canon of Medicine
  • 1140

    Roger of Sicily

    He forbade anyone to practice medicine without a license.
  • 1249

    Roger Bacon

    Invents spectacles which allowed for people to see farther or closer away objects.
  • Period: 1301 to

    Renaissance

  • 1489

    Leonardo Da Vinci

    The first dissection of a corpse.
  • Zacharius Jannssen

    Invented the first microscope
  • Sir Christopher Wren

    Expiremented with canine blood transfusions.
  • Reflective Microscope

    Reflective Microscope
    It allowed study of microorganisms like bacteria
  • Anton van Leeuwenhoek

    Anton van Leeuwenhoek
    Discovered blood cells.
  • Observing Bacteria

    Anton van Leeuwenhoek observes bacteria.
  • Period: to

    Industrial Revolution

  • Louis Pasteur

    Louis Pasteur
    Identifies germs as cause of disease.
  • Anthrax Vaccine

    Developed by Louis Pasteur.
  • Wilhelm Conrad Roentgen

    Wilhelm Conrad Roentgen
    Discovered the first X-rays.
  • Bubonic Pleague Vaccine

    The first vaccine developed for the Bubonic Pleague.
  • Felix Hoffman

    Develops asprin.
  • Period: to

    Modern World

  • Selman A. Waksman

    Discovered the antibiotic streptomycin.
  • Paul Zoll

    Paul Zoll
    Develops the first cardiac pacemaker
  • James Watson and Francis Crick

    Work on structure of the DNA molecule.
  • Gertrude Elion

    Gertrude Elion
    Patented a leukemia- fighting drug.
  • Jonas Salk

    Develops the first polio vaccine.
  • Period: to

    21st Century

  • Tuberculosis Treatment

    multidrug- resistant tuberculosis treatment.
  • Cancer Causing Vaccine

    First vaccine to target the cause of cancer.
  • Enhancer Transcription

    Led by Michael Greenberg, found that helps environmental stimuli activate certain selections of DNA.
  • Hematopoietic Stem Cells

    Hematopoietic Stem Cells
    extending the possibility of transplantation to patients for whom a donor cannot be identified.
  • Rhematoid Arthritis

    Rhematoid Arthritis
    Studying cell samples from patients with rhematoid arthritis.