Hannah's Cell Theory Timeline

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    Aristotle

    Aristotle
    A Greek philosipher who studied from the subjects of Biology to Poetry. He developed reasoning of the stars but also the fomature of cells and the life proccesses they possess.
    www.iep.utm.edu/aristotl/
  • Zacharies Janssen

    Zacharies Janssen
    A Dutch spectacle-maker from Middelburg that was associated with the invention of the first optical telescope. Janssen invents the first compund microscope which changes the course of history providing the biology world a new way in looking and making new observations.
    www.history-of-the-microscope.org/hans-and-zacharias-jansen-microscope-history.php
  • Robert Hooke

    Robert Hooke
    Hooke is the first person to use the word "cell" to identify microscopic structures because he concoured they appeared to look like cells monks would live in after viewing a slice of cork. He was one of the best known Scientific Enquirers of the modern day and age.
    www.ucmp.berkeley.edu/history/hooke.html
  • Aton van Leeuwenhoek

    Aton van Leeuwenhoek
    Leeuwenhoek becomes the first person to observe and describe the bacteria "protozoa" a single-celled organism that he called "animalcules." He is also considered to be called the "Father of Microbiology" and was thought to be one of the first microbiologists.
    www.ucmp.berkeley.edu/history/leewenhoek.html
  • Lorenz Oken

    Lorenz Oken
    Oken was a German botanist, biologist, and ornithologist. He studied many different subjects but he discovered animal classification and by developing this scientists after him began to study different areas in which were classified on their own without other species in their groupings.
    www.britannica.com/EBchecked/topic/1518558/Oken-Lorenz
  • Robert Brown

    Robert Brown
    A Scottish botanist and paleobotanist who pioneered the idea of using a microscope in the botany science field. He also discovered the cell nucleus.
    adb.anu.edu.au/biography/brown-robert-1835
  • Theodor Schwann

    Theodor Schwann
    A German physiologist that made many biology contibutions with the development of the cell theory. He also developed the discovery of Schwann cells peripheral nervous system, the discovery and study of pepsin, the discover of the organic nature of yeast, and finally the invention of the world metabolism.
    scienceworld.wolfram.com/biography/schwann.html
  • Matthias Schleiden

    Matthias Schleiden
    A German botanist that co-founded the cell theory. The theory contains the theory stating all living things are made up of one or more cells.
    www.britannica.com/EBchecked/topic/527571/matthias-jacob-schleiden
  • Abrecht von Roelliker

    Abrecht von Roelliker
    von Roeslliker was a Swiss ananomist and physologist that graduated for Germany's Heidleberg Unviversity. He studied anywhere from invertebrates and their stuctures to, developing the microscopic method.
    en.wikipedia.org/wiki/albert/von/kolliker
  • Rudolf Virchow

    Rudolf Virchow
    A German Biologist/Doctor that became famous for his saying "evey cell stems from another cell" he also quoted the fact that all disease involve changes in normal cells. He is also well known for his advancements in public health.
    www.famousscientists.org/rudolf-virchow/
  • Louis Pasteur

    Louis Pasteur
    Pasteur was a French chemist and microbiologist that is known for his discoveries in of the principals of vaccination, microbial fermentation, and pasteurization. He dicovered multiple breakthroughs in causing and preventing diseases.
    www.accessexcellence.org/RC/AB/BC/louis_pasteur.php
  • Jan Baptist van Helmont

    Jan Baptist van Helmont
    A Flemish Chemist that was sometimes determind to be "the founder of pnuematic chemistry." He was also working during the year just after Paracelsus and iatrochemistry.
    www.britannica.com/EBchecked/topic/260549/Jan-Baptisra-van-Helmont