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The First Microscope
Zacharias Janssen produced the first compound microscope by combining two convex lenses within a tube -
Cell Theory's Begining
Dutch, Anton Van Leeuwenhoek, learned to grind lenses and assemble them into microscopes. Thus creating the ability to veiw microscopic images of cells. http://science.howstuffworks.com/ -
Discovery of cells
Robert Hooke used microscopes to observe cork cells. The scetches were published as Micrographia. This inspired Leeuwenhoek to build microscope extensions. http://science.howstuffworks.com/ -
Better Magnification
Anton van Leeuwenhoek improved magnification of microscopes by polishing lenses -
"Little Animals"
Antoni van Leeuwenhook reported that he had observed "little animals" through a microscope. -
Bacteria is Discovered
Anton van Leeuwenhoek discovered bacteria from a sample of saliva from his mouth -
Organic Beings Origins
Lorenz Oken made a statement that all organic beings originate from and consist of vesicles or cells. -
Cell Nucleus
Robert Brown contributed to the determination of how the cell nucleus looked like and how the cytoplasm function -
Plant Cells
Matthias Schleiden discovered the plants were made up of cells -
First Cell Theory Statement
Theodor Shwann came up with the first statement of the cell theory stating all living things are made of cells -
Cell to Cell
Louis Pasteur discovered that cells come only from other cells -
Cell Theory Extended
Rudolf Virchow proposed that all living cells must rise from pre-existing cells
