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coumpond microscope
Zacharias jenson invented the first compound microsope. -
Van Helmont
S trong believer in spontaneous generation. mad instructions on how to make adult mice. Mixing dirty laundry with wheat and 21 days would produce mice. -
Birth of the cell
Robert Hooke observed tiny cork cells through a microsope. -
Leeuwenhook
Discovered protozoa through a microscope. -
Oken
Oken proposes that “all organic beings originate from and consist of vesicles or cells. These vesicles are the infusorial mass or protoplasma (Urschleim) whence all larger organisms fashion themselves or are evolved.” -
Robert Brown
Robert Brown discovered the nucleus of a cell and stressed its importance in fertalization. -
Cell theory is created
Schwann creates cell theory. He discovers Schwann cells and conducts exxperiments to disprove spontaneous generation once and for all. -
Schleiden
With Schwann he created the celltheory and published a book applying cell theory to plants. -
disease
Robert Virchow theorises that all disease stems from changes in cells. -
Soup
Louis Pasteur recreates the soup experiment. With the experiment he proves that bacteria live in dust and that spontaneous generation is false. -
Kolliker
Schleiden, of Jena, published his work on vegetable cells in 1838, and Schwann his cell theory in 1839. In the memoir entitled “Microscopical researches into the accordance in the structure and growth of animals and plants,” he published Erinnerungen aus meinen Leben. when he was over 80 years of age, he wrote over 245 papers. -
Aristotle
Classyfied all life as plants of animals.
