• William Harvey

    William Harvey
    In 1628 he described the circulation of blood.
  • Anton Van Leeuwenhoek

    Anton Van Leeuwenhoek
    In 1677 he first observed living bacteria
  • Edward Jenner

    Edward Jenner
    In 1796 he used cowpox to immunize against smallpox.
  • Charle Darwin

    Charle Darwin
    In the mid 1800’s he formed a theory to explain how evolution may take place.
  • Florence Nightengale

    Florence Nightengale
    In 1851 became a trained nurse.
  • Thomas Malthus

    Thomas Malthus
    Known for population growth and the effects of it.
  • Louis Pasteur

    Louis Pasteur
    In 1861 he invented sterilization.
  • Gregor Mendel

    Gregor Mendel
    In 1865 he proposed principles of how traits may be inherited through generations.
  • Robert Koch

    Robert Koch
    In 1876 he proved that Bacillus anthracis causes anthrax.
  • Joseph Lister

    Joseph Lister
    1876 uses steril surgical techniques
  • Clara Barton

    Clara Barton
    In 1881 founded the red cross
  • Karl Landsteiner

    Karl Landsteiner
    In 1901 he determined three of four blood types (A,B, and O)
  • Paul Ehrlich

    Paul Ehrlich
    In 1910 he invented Salversan, which is a drug for syphilis
  • Sir Alexander Fleming

    Sir Alexander Fleming
    In 1928 he discovered antibiotic effects of penicillium mold.
  • Albert Sabin

    Albert Sabin
    Was an American medical researcher best known for having developed an oral polio vaccine.
  • Bernard Fantus

    Bernard Fantus
    In 1937 he formed the fist blood bank.
  • Dr.Charles Drews

    Dr.Charles Drews
    In 1939 he set up collection centers for blood to fill World War 2 needs.
  • Howard Florey

    Howard Florey
    In 1939 he isolated penicillin and created the first antibiotic drug.
  • Carl Walter

    Carl Walter
    In 1950 he introduced the plastic bag to collect blood.
  • Jonas Salk

    Jonas Salk
    In 1955 he introduced an injectable polio vaccine.