Two Dutch scientists named Dr. Jensen and his father made the very first microscope.
Another Dutch scientist named Leeuwenhoek made a compound microscope. He also, looked at all of the plants.
The three parts of cell theory are
#1 All known living things are made up of one or more cells
#2 All living cells arise from pre-existing cells by division.
Robert Hooke, an English scientist, He discoverd and cut a cork slice using a compound microscope. He only saw cell walls as this was dead tissue.
Schleiden studied plant structure under the microscope. He also recognized the importance of the cell nucleus.
Rudolph Virchow founded out that all cells are made for pre-existing.
He realized that animals had cells in the their body.