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