-
330 BCE
Aristole
established methods for investigation and reasoning and developed a theory on how embryos develop and generate -
Zacharias Jansen
Made the first microscope
https://www.aps.org/publications/apsnews/200403/history.cfm -
Jan Baptist Van Helmont
Discovered photsynthesis -
Robert Hooke
His micrographia helps show the crystal structure of a snowflake. Lead to Leeuwenhoek inventing the microscope.
https://www.britannica.com/biography/Robert-Hooke -
Anton van Leeuwenhoek
Made the first microscope, taking Jansen's invetion.
https://www.wired.com/2008/09/sept-17-1683-van-leeuwenhoek-gives-us-reason-to-brush-and-floss/#:~:text=After%20seeing%20Hooke's%20illustrated%20and,mounted%20in%20a%20brass%20plate. -
Finding "little animals"
Leeuwenhoek finds little animals in water samples.
https://science.howstuffworks.com/innovation/scientific-experiments/scientific-method4.htm -
Lorenz Oken
Had the first statement of the cell theory hd said,"All living organisms originate from and consist of cells." -
Robert Brown
Discovered the nucleus of a cell -
Matthias Schleiden
First to recognize that all plants were composed of cells.
https://science.howstuffworks.com/innovation/scientific-experiments/scientific-method4.htm -
Theodor Schwann
Dicovered that all tissue is made of cells. -
First cell theory statement
Schleiden and Schwann publish an artile entitled, "Microscopic Investigations on the Accordance in the Structure and Growth of of Plants and Animals" -
Albercht Von Roeliliker
discovered that all humans are made of cells from start to finish. -
Rudolf Virchow
Came to the conclusion that all cells were madeof pre-existing cells. -
Lois Pasteur
Debolished spontaneous generate, with an experiment.