-
Zacharias Jansen invented the worlds first compound microscope.
-
Jan Baptist Van Helmont did the first bioligical experiment to test photosynthesis. From his experiment he concluded that a willow tree drew its nutrients not from soil, but from water.
-
Robert Hooke of England looks through a microscope at a sliver of cork. He introduced the term cell because the cellulose walls of the sliver of the dead cork cells reminded him of the blocks of cells occupied by monks.
-
Anton Van Leeuwenhoek, of Holland, used microscopes to view pond organisms, bacteria and blood cells. He made sketches of what he observed.
-
Robert Brown discovers the nucleus of the cell. He finds the importance it has in fertilization.
-
Matthias Schleiden and Theodor Schwann create the cell theory. The theory is that all living things are made up of one or more cells.
-
Rudolf Virchow had disproved a prominent view that inflammation of a vein causes most diseases.
-
Rudolf Virchow writes and publishes his aphorismomnis cellula e cellula, which means every cell stems from another cell. He says that all forms of disease come from changes in normal cells.
-
Rudolf Virchow theorizes and endorses the topic of cell division.
