Breakthroughs that Have Made us More Knowledgeable about Cells:

Timeline created by swarner01
  • Hans and Zacharias Janssen

    Hans and Zacharias Janssen
    They made the first optical microscope, making it easier and more practical to examine cells.
  • Robert Hooke

    Robert Hooke
    He used a microscope to examine a thin slice of cork, and eventually gave cells their name.
  • Anton van Leeuwenhoek

    He used a microscope that could magnify objects 300- fold and named the object's animalcules which included many unicellular organisms. He also was the first person to view living cells in a pond, and from his teeth.
  • Matthias Schleiden

    He concluded that all plant tissues are composed of organisms and that an embryonic plant arose from a single cell. He also said that cells are the building block for all plant matter.
  • Theodor Schwann

    He declared that all tissues are made up of cells, which laid the foundations for cell theory.
  • Rudolph Virchow

    He used the theory that all cells arise from pre-existing cells by cell division, to lay the groundwork for cellular pathology. He was also the first person to discover cells dividing underneath a microscope.
  • The First Knockout Mouse

    A specific type of mouse bred to leave out certain genes to determine whether or not certain genes can lead to certain diseases.
  • Embryonic Stem Cells

    Scientists grew the first-ever human embryonic stem cell in a laboratory dish to learn how cells function and develop.
  • Canabilism Found on Skeletons

    Using a microscope scientists were able to find teeth marks and conclude that these remains were actually butchered and used in cannibalistic ritual.
  • New Blood

    Scientists are taking stem cells and converting them into red blood cells to help patients that have gone through surgery or are in need of a blood transfusion.