Timeline of Advancements in Biology

  • Leonardo da Vinci
    Jan 1, 1511

    Leonardo da Vinci

    Leonardo studied the anatomy of humans and animals and made the first drawing of a fetus in utero.
  • William Harvey

    William Harvey

    William was the first person to outline the human circulatory system in detail.
  • Robert Hooke

    Robert Hooke

    Robert coined the term “cell” for describing biological organisms.
  • Antony van Leeuwenhoek

    Antony van Leeuwenhoek

    Antony discovered bacteria.
  • Carolus Linnaeus

    Carolus Linnaeus

    Linnaeus pioneered the system of taxonomy used widely by today’s biologists.
  • Edward Jenner

    Edward Jenner

    Edward first refined a vaccine for smallpox by utilizing cowpox viruses. His vaccines were the first step in eradicating smallpox.
  • Thomas Malthus

    Thomas Malthus

    Wrote and studied about demographics and the variables in population fluctuation. 1798
  • Florence Nightengale

    Florence Nightengale

    Florence Nightengale created the first official school for nurses.
  • Gregor Mendel

    Gregor Mendel

    Founder of modern genetics.
  • Charles Darwin

    Charles Darwin

    Charles came up with the theory of natural selection.
  • Louis Pasteur

    Louis Pasteur

    Pasteur demonstrated that fermentation is caused by the growth of micro-organisms and that growth of bacteria in nutrient broths is not due to spontaneous generation but rather to biogenesis.
  • Clara Barton

    Clara Barton

    Clara Barton was the main establisher of the Red Cross.
  • Robert Koch

    Robert Koch

    Robert proved that Bacillus anthracis causes anthrax.
  • Joseph Lister

    Joseph Lister

    Joseph refined and used antiseptics along with new surgical techniques in procedures.
  • Paul Ehrlich

    Paul Ehrlich

    Ehrlich invented Salversan, a drug for syphilis.
  • Sir Alexander Fleming

    Sir Alexander Fleming

    Fleming discovered the antibiotic affects of penicillium mold.
  • Dr. Charles Drew

    Dr. Charles Drew

    Drew's improved the system of mass blood storage. He also created new transfusion techniques.
  • Albert Sabin

    Albert Sabin

    Sabin created an easier and more effective vaccine for polio. He also pioneered mass immunization techniques.
  • Jonas Salk

    Jonas Salk

    Jonas was the first person to develop a safe and effective polio vaccine.
  • Colin Murdoch

    Colin Murdoch

    Murdoch invented the modern disposable syringe in 1956.