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Period: 1500 to
Cell Theory
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Compound Microscope
Zacharias Jansenn invented the compound microscope. -
Cells describe
Robert Hooke first described cells, referring to the. As slices of cork -
First microscope
Antoine Van Leeuwenhoek creates the first microscope -
Scleiden
Matthias Jacob Schleiden continued to analyze plants and their cells through a compound microscope. He proposed that cells were a fundamental unit of life and that all living things have them. -
Theodore Schwann
Schwann went on to analyze animal tissue and thus, the fact that all living things have cells was permanently ingrained into the cell theory. -
Louis Pasteur
Created an experiment that showed cells could only be formed from pre-existing cells. -
Virchow’s theory
Virchow, aged 34, published an essay in which famously he declared: “Every cell arises from another cell.” -
Electron microscope
The first electron microscope is invented -
Plankton
Plankton is discovered