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Robert Hooke
Made the first discovery of cells while examining a thin cork through a microscope. -
Anton van Leeuwenhoek
Saw what he described as “little animals” through his microscope and called them animalcules. He saw the cells in a drop of pond water. -
Matthias Schleiden
German scientist who saw that every part of a plant he examined was made of cells. -
Theodor Schwann
German scientist who saw that every part of an animal he examined was made of cells. "Finalized" the cell theory. -
Albrecht von Roelliker
Discovered that sperm cells and egg cells were also cells, -
Carl Heinrich Braun
First identified cells as basic unit of life. -
Rudolph Virchow
German physiologist, physician, pathologist, and anthropologist; added the third tenet to the cell theory: that all cells only develop from existing cells