I'm Matthias Schleiden and I'm a German Botanist who studied plants through a compound microscope and discovered that all plants were made of similar looking cells. All plant cells had similar size, shape, and color (green).
Studying plant cells1830's
Different types of cells1830's
I'm Theodor Schwann and I'm a German zoologist who studied animal cells through a compound microscope and stated that cells were the building blocks of all living things (plants and animals). I also noticed that each type of cell had a different function, for example, a blood cell is different from a skin cell.
Studying Others' Work1858
I'm Rudolph Virchow and I'm a German scientist that look at other's work and studied it. I proved that all cells came from pre-existing cells.