-
Hans Jansen and Zacharias Jansen created the worlds first compound microscope.
-
Jean Baptiste Van Helmont was the first to question the theory of Spontaneous generation. He considered that things like sulfur, salt, and mercury were created through chemical processes rather than being preexistent.
-
Robert Hooke of England looks through a microscope at a cork. Robert noticed that the cork had small compartments he called cells.
-
Francesco was an Italian scientist who challenged Spontaneous Generation. Francesco Redi was able to disprove the theory that maggots could be spontaneously generated from meat using a experiment. He got a couple of bottles and put meat in them. He covered half of them. Maggots were in the uncovered ones, but not in the covered ones.
-
Anton used microscopes to look at organisms in pondwater, later he would draw these things he saw.
-
Rene (Henri) Dutrochet discovered cells that had existed in plants.
-
Matthias Schleiden and Theodor Schwann create cell theory. The theory states that all living things are made up of one or more cells. They conduct experiments to help disprove spontaneous generation once and for all.
-
Rudolf Virchow writes that every cell stems from another cell. He theorizes that all forms of disease come from changes in average cells.
-
Louis Pasteur repeated the soup experiment. He stated that flasks with long S shaped necks protected the soup because the micro organisms settled in the neck instead of the soup.
-
He invented the first transmission microscope.
